Nineteen New Orchid Species from Northern Mindanao, Philippines

OrchideenJournal

Publisher: V.D.O.F. Vol. 6 · 2 Vereinigung Deutscher Orchideenfreunde e.V. 2018

Thrixspermum bellamabantae Benjamin Mabanta

Contents: O Nineteen new orchid species Page 1 – 21 from northern Mindanao, Philippines ISSN-Internet 2195-772X 17.4.2018 OrchideenJournal Internet | Vol. 6 · 2

Nineteen new orchid species from northern Mindanao, Philippines

Derek D. Cabactulan, Jim Cootes, Miguel David De Leon, Reynold B. Pimentel, Fernando B. Aurigue, and Neil K. Binayao III 3

Summary: Abdominea intricata Cabactulan, Cootes, M.D. De Leon & Pimen- tel, Ascidieria maculosa Cabactulan, Cootes, M.D. De Leon & Pimentel, Bul- bophyllum alboaligerum Cabactulan, Cootes, M.D. De Leon & Pimentel, Bulb. crassiusculum Cabactulan, Cootes, M.D. De Leon & Pimentel, Bulb. prasinoglossum Cabactulan, Cootes, M.D. De Leon, & Pimentel, Bulb. puberulosum Cabactulan, Cootes, M.D. De Leon, & Pimentel, Bulb. vinicolor Cabactulan, Cootes, Aurigue, Pimentel & M.D. De Leon, Cylindrolobus benmabantai Cabactulan, M.D. De Leon & Pimentel, Dendrobium deleonii Cabactulan, Cootes & Pimentel, Dendrochilum charisae Cabactulan, Cootes, M.D. De Leon & Pimentel, Ddc. derekcabactulanii Cootes, M.D. De Leon & Pimentel, Ddc. kennedyi M.D. De Leon, Cootes, Cabactulan & Pimentel, Ddc. perrineae Cabactulan, Cootes, M.D. De Leon, Pimentel & Binayao, Ddc. perrinei Cabactulan, Cootes, M.D. De Leon, Pimentel & Binayao, Epicrianthes charishampeliae Cabactulan, M.D. De Leon, Cootes & Pimentel, Epicr. jimcootesii Cabactulan, M.D. De Leon & Pimentel, Epicr. neilkonradii Cabactulan, Cootes, M.D. De Leon & Pimentel, Robiquetia micramphora Cabactulan, Cootes, Pimentel & M.D. De Leon, and Thrixspermum bellamabantaiae Cabactulan, Cootes & Pimentel, are all described as new to science.

Key words: Abdominea intricata, Ascidieria maculosa, Bulbophyllum alboaligerum, Bulb. crassiusculum, Bulb. prasinoglossum, Bulb. puberulosum, Bulb. vinicolor, Cylindrolobus benmabantai, Dendrobium deleonii, Dendrochilum charisae, Ddc. derekcabactulanii, Ddc. kennedyi, Ddc. perrineae, Ddc. perrinei, Epicrianthes charishampeliae, Epicr. jimcootesii, Epicr. neilkonradii, Robiquet- ia micramphora, Thrixspermum bellamabantaiae, Philippines, Mindanao, Bukid- non, Orchidaceae, new species.

Published by: VDOF e.V. Mittelcarthausen 2 58553 Halver Germany email: [email protected]

Editor in chief: Roland Schettler

Date of Publication: April 17th, 2018, 22:00 Uhr CEST

2 Internet | Vol. 6 · 2 OrchideenJournal Nineteen new orchid species from northern Mindanao, Philippines Derek D. Cabactulan, Jim Cootes, Miguel David De Leon, Reynold B. Pimentel, Fernando B. Aurigue, and Neil K. Binayao III

Introduction: The Philippines is one of the most biodiverse countries in the world. With forests reduced to approx- imately 4% of its original cover, many plant and animal species yet unknown to science are likely to have gone the way of extinction. Despite the rapidly receding residual virgin and disturbed forest ecosystems, many more species continue to be discovered. Taxonomy can be a pursuit and an end in itself. Yet, the role of taxonomy in biodiversity conservation has increasingly become important in a country with rapidly vanishing natural treasures. More than ever, taxonomic work and fi eld data have become increasingly important in policy- making, drawing public support and identifi cation of key species and hab- itats in a country with ecosystems dis- tributed over more than 7,100 islands. “Taxonomy enables us to constantly celebrate the diversity of life, thereby earning stronger public support for bi- Abdominea intricata plant odiversity” (Jeffrey Mcneely, Cornell University). Nigel Marven of Nation- al Geographic/BBC has succinctly and It is our fervent hope that this paper several elongated roots, which pro- emphatically said, “how can we pro- will showcase once again the biodiver- duce root hairs. Leaves: three to four, tect something we do not know?” sity of the Philippines and draw more lanceolate, oblong-elliptic, 2.1 to 2.3 support from all sectors for its conser- cm long by 7 mm wide, thinly-tex- Abdominea intricata infl orescence vation, preservation and restoration. tured, spreading, fl attened, entire- After exhaustive review of literature ly glabrous, margins entire, sessile, from the Philippines and neighbor- three lateral veins on both sides of the ing countries, the authors have deter- leaf; midvein adaxially depressed and mined these species to be new to sci- abaxially raised, unequally bilobed, ence and hereby present them to you. falcate at the apex. Infl orescences: short, axillary, pendent, branching, Abdominea intricata Cabactulan, rachis emerging from the base of the Cootes, M.D. De Leon, and Pimen- stem sheaths, few fl owered, entire- tel sp. nov. ly glabrous, 5 cm long, bearing up to 15 fl owers. Peduncle: short, terete, TYPE: PHILIPPINES, Mindanao, Bukid- slender, glabrous, dark green, swol- non, at 1,600 metres elevation above len in the upper portion, 3.5 cm long sea level. HOLOTYPE: MDL1803001 by 4 mm in diameter at lower rachis (January 20, 2018), CAHUP073541 and 1.50 mm diameter at upper rachis with fl owers. Bracts: lanceolate, 2.2 PLANT DESCRIPTION to 3.3 mm long and 0.35 to 0.50 mm Growth Habit: erect to pendent, mo- wide at the base, persistent, glabrous, nopodial, up to 2 cm long and 3.5 cm present on the lower and upper ra- wide across the leaves; producing chis, swollen at the base. Pedicel and

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Ovary: cylindrical-conical, glabrous, Etymology: The specifi c epithet refers grooved, grooves purple, 1.7 mm long to the intricate structure of the label- and 0.30 mm in diameter. Flowers: lum. small, membranous, fl eshy, minutely papillose, not opening widely. Flow- Ascidieria maculosa Cabactulan, er color: sepals and petals are purple Cootes, M.D. De Leon, and Pimen- with yellow markings at the apex; la- tel sp. nov. bellum is purple. Dorsal sepal: elliptic-oblong, 2.0 to 2.3 mm long by 0.90 TYPE: PHILIPPINES, Mindanao, Bukid- mm wide, thin, glabrous, concave, non, at 1,200 metres elevation above apex slightly recurved. Petals: ellip- sea level. HOLOTYPE: MDL1803002 tic-ovate, 2 mm long by 1.1 mm wide, (March 3, 2018), CAHUP073542 glabrous, thin, concave, apex slightly recurved upward. Lateral sepals: PLANT DESCRIPTION elliptic-oblong, 2.1 to 2.3 mm long by Growth Habit: upright, sympodial. 0.80 mm wide, thin, glabrous, con- Stems: clustered, small, hidden by cave, apex slightly recurved upwards. up to seven involute, lanceolate cata- Labellum: saccate, ovate, fl eshy, three phylls about 10 cm long by 2 cm wide. lobed, laterally compressed with a Leaves: lanceolate, up to 14.5 cm long large irregular saccate portion with- by 1.8 cm wide. Infl orescences: up- out interior ornamentation, separated right, apical, axillary, cylindrical, rac- from the apical part by a fl eshy trans- emose, up to 5 cm long by 1.75 cm in verse wall; lateral lobes: short, ovate, diameter, bearing 17 fl owers on the ra- 0.90 mm long by 0.50 mm wide; mid- chis, which are 6 mm in diameter when lobe: fl eshy, reniform, deep, immo- fully open. Peduncle: terete, pubes- bile, adnate to the column, 1 to 1.40 cent, 4.2 cm long by 1.8 mm in diam- mm long by 1.20 to 1.25 mm wide, re- eter. Bracts: persistent; basal non- curved. Column: green, short, trun- fl oral bracts broadly ovate, involute, Ascidieria maculosa infl orescence cate, foot absent, 0.50 mm long and abaxially pubescent, 1.5 to 6 mm long trapezoid, slightly curved, 3 mm long 0.30 mm in diameter; rostellum projec- by 1.5 to 4 mm wide. Pedicel and ova- by 1 mm in diameter from the column tion longer, cordate, acuminate, later- ry: terete, wooly, grooved, 4 mm long hood and 0.8 mm in diameter from the al sides incurved downwards; stelidia: by 1 mm in diameter from the base of base of the sepals and petals; column fl attened, short, square, about 0.03 the sepals, and 0.5 mm in diameter foot trapezoid, 3 mm long by 1 mm mm long. Anther cap: white, cordate, from the base of rachis. Flower col- wide, with distinct mid rib keel just be- cucullate, 0.87 mm long by 0.65 mm our: sepals and petals base color yellow the column. Labellum: ovate, tri- wide. Pollinia: two, unequally paired, low with big purplish spots all over the lobed, sulcate, curved downwards, 5 rounded to ovate, 0.30 mm in diam- sepals, petals and under the labellum. mm long by 2.5 mm wide; sidelobes eter, caudicle rounded; stipes fl at- Dorsal sepal: broadly ovate, 4 mm oblong, anteriorly auriculate, 3 mm tened lanceolate, 1 mm long by 0.30 long by 2.5 mm wide, concave, abaxi- long by 0.5 mm wide; midlobe triangu- mm wide; viscidium: oblong, 0.50 mm ally pubescent. Lateral sepals: broad- lar, 1.5 mm long by 2.2 mm wide, with long by 0.30 mm wide. Stigma: round- ly ovate, 4 mm long by 3.5 mm wide, 2 midline keels about 2 mm long. An- ed, concave, 0.90 mm in diameter. concave, abaxially pubescent. Petals: ther cap: rounded, slightly cucullate, Comparison: Abdominea intrica- ovate, 3.9 mm long by 2.2 mm wide, 0.5 mm in diameter. Pollinia: 4-paired, ta is most similar to Abd. minimifl o- concave, glabrous. Column: fl attened, clavate, 0.6 mm long by 0.15 wide. ra (Hook. f.) J.J. Smith, but it differs in having a short, clavate, few-fl ow- Ascidieria maculosa plant ered infl orescence; the infl orescence of Abd. minimifl ora is long (to 10 cm.), bearing many fl owers; the mentum of Abd. intricata is short and has a rounded apex, whereas the mentum of Abd. minimifl ora is longer and tapered.

Habitat and Distribution: Abdomin- ea intricata is so far, known only from the province of Bukidnon on the island of Mindanao. It grows as an epiphyte, clinging to branches covered with moss, at elevations of about 1,600 meters above sea level in cloud forest.

4 Internet | Vol. 6 · 2 OrchideenJournal Bulbophyllum alboaligerum in situ Stigma: rounded, concave, 0.5 mm in diameter. Fragrance: unknown. In- fructescence: not seen.

Comparison: Ascidieria maculosa is most similar to the Borneo species Asc. maculifl ora J.J. Wood, but differs in the fewer-fl owered infl orescence, which in Asc. maculosa bears up to 17 blooms, whereas the infl orescence of Asc. maculifl ora bears up to 50 fl owers; the blooms of Asc. maculosa are larger at about 6 mm across the lateral sepals, whereas the blooms of Asc. maculifl ora are only 4 mm across the lateral sepals; the blooms of Asc. maculosa are more widely opening. PLANT DESCRIPTION margins slightly erose. Labellum: cor- Habitat and Distribution: Ascidieria Growth Habit: upright, sympodial, ep- date, 2 ridges running from the cent- maculosa is so far, known only from iphyte. Pseudobulbs: globose, wrin- er of the labellum, apically thickened, the province of Bukidnon on the island kled, 4 mm long by 3 mm in diame- apex papillose, recurved for approxi- of Mindanao. It grows as an epiphyte, ter, covered with a papery sheath; mately half of its length, 0.60 mm long clinging to branches, at elevations of unifoliate. Leaves: oblong, entirely by 0.70 mm wide. Column: cylindrical about 1,200 meters above sea level. glabrous, 1 to 1.2 cm long by 3 to 4.5 0.70 mm long by 0.70 mm wide. Stel- mm wide. Infl orescence: single-fl ow- idia: subulate slightly incurved, about Etymology: The specifi c epithet refers ered, up to 5 cm long, arising from the 1 mm long. Column foot: rectangular, to the purple spots and blotches on base of the pseudobulb. Flower col- with keel at the midline about 0.60 the fl oral segments and labellum. our: sepals and petals are white, with mm long. Ovary: bulbous, grooved, pale yellow-green veining; labellum sparsely hispid, 1 mm long by 1 mm Bulbophyllum alboaligerum Cootes, white. Peduncle: slender, 4.5 cm long, in diameter. Anther Cap: cordate, con- Cabactulan, M.D. De Leon and Pi- with bract about 2.5 mm long by 1.3 vex, 0.50 mm long by 0.40 mm wide. mentel sp. nov. mm wide. Pedicel: cylindrical 1.3 cm Pollinia: two, ovoid, 0.20 mm long and long by 1 mm in diameter. Dorsal Se- 0.05 mm diameter. Section: Macrocaulia (Blume) Avery- pal: ovate, 7 mm long by 2.4 mm wide, anov apex acuminate, 3-nerved, margins Comparison: Bulbophyllum alboa- slightly erose. Lateral sepals: elliptic- ligerum is most similar to Bulb. lep- TYPE: PHILIPPINES, Mindanao, Bukid- ovate, 1 cm long by 4.5 mm wide, api- roglossum J.J. Vermeulen and Lamb non, at 1,600 metres elevation above culate, 5-nerved, nerves green, mar- from Borneo. It differs in the edges of sea level. HOLOTYPE: MDL1803003 gins slightly erose. Petals: ovate, 3.7 the dorsal sepal and the petals, which (January 20, 2018), CAHUP073543 mm long by 1.5 mm wide, 3-nerved, in Bulb. alboaligerum are slightly erose, whilst the dorsal sepal and pet- Bulbophyllum alboaligerum fl ower als of Bulb. leproglossum are entire; and the apices of the labellum which in Bulb. alboaligerum is papillose, whereas that of Bulb. leproglossum is glabrous. The lateral sepals are also occasionally adnate as in Bulbophyl- lum pelicanopsis J.J. Verm & Lamb.

Habitat and distribution: Bulbo- phyllum alboaligerum is so far, known only from the provinces of Bukidnon and Misamis Oriental on the island of Mindanao. It grows as an epiphyte, clinging to branches covered with moss, at elevations at about 1,600 meters elevation above sea level.

Etymology: The speciﬁ c epithet refers to the white lateral sepals and their

5 OrchideenJournal Internet | Vol. 6 · 2 fanciful resemblance to the wings of an angel. “Angel Wings” was the work- ing name for this species. In a dark forest, an array of the species’ contrast- ingly white ﬂ owers seemingly ﬂ utter- ing with the wind is a sight to behold.

Bulbophyllum crassiusculum Cabactulan, Cootes, M.D. De Le- on, and Pimentel sp. nov.

Section: Stachysanthes (Blume) J.J. Verm. and P. O‘Byrne

TYPE: PHILIPPINES, Mindanao, Bukid- non, at 1,200 metres elevation above sea level. HOLOTYPE: MDL1803001 (March 2, 2018), CAHUP073545 Bulbophyllum crassiusculum PLANT DESCRIPTION Growth habit: upright, sympodial. wide; stelidia acute-acuminate, about siusculum is minutely ciliate, where- Pseudobulbs: clustered, globose, 1.9 0.5 mm long; column foot rectangular, as the edge of the labellum of Bulb. mm long by 2.2 mm in diameter, uni- winged below the column, 1.3 mm long unguiculatum is entire; the petals of foliate, internodes cylindrical, covered by 1 mm wide. Anther cap: triangular, Bulb. crassiusculum are lanceolate, with dried cataphylls, 0.30 mm long by cucullate, 0.45 mm long by 0.3 mm whereas the petals of Bulb. unguicula- 1.5 mm in diameter. Leaves: petiolate; wide. Pollinia: oblate, two-unequally tum are obovate to elliptic. petiole 3 mm long by 1.5 mm in diame- paired, 0.35 mm in diameter. Stigma: ter, glabrous, grooved; leaf blade line- oblong, 0.2 mm wide, 0.3 mm long. In- Habitat and distribution: Bulbophyl- ar-lanceolate, semi-terete, fl eshy, 1.85 fructescence: not seen. lum crassiusculum is so far, known on- to 3. 8 cm long by 4.5 to 8 mm wide, ly from the province of Bukidnon on apex acute-acuminate, base acute, Comparison: Bulbophyllum crassius- the island of Mindanao. It grows as adaxially and abaxially glabrous, mar- culum is most similar to Bulb. unguicu- an epiphyte, clinging to branches cov- gins entire. Infl orescence: axillary, up- latum Rchb. f., but differs in the shape ered with moss, at elevations of about right, racemose, up to 6 cm long by of the labellum which in Bulb. crassi- 1,200 meters above sea level. 0.60 mm in diameter, rachis erect; usculum is sharply curved downwards bearing up to 6 fl owers, 6 mm across with a recurving apex, the labellum of Etymology: The specifi c epithet refers the lateral sepals; fl owers resupinate Bulb. unguiculatum is evenly curved; to the succulent leaves of this species. and unscented. Peduncle: acicular, the edge of the labellum of Bulb. cras- 4.5 mm long by 0.60 mm in diameter. Bulbophyllum prasinoglossum Flower color: base color is pale yel- Cabactulan, Cootes, M.D. De Le- low, column foot and column are yel- on and Pimentel sp. nov. low, labellum is yellow with two lateral and parallel purple lines interior- Section: Brachystachyae Benth. and ly. Floral bracts: triangular, persistent, Hook. f. glabrous, green, 2 mm long by 1 mm wide when fl attened, 2 involute basal TYPE: PHILIPPINES, Mindanao, Bukid- bracts. Pedicel including ovary: coni- non, at 1,200 metres elevation above cal, grooved, glabrous, 2 mm long by sea level. HOLOTYPE: MDL1803006 0.8 mm in diameter at the base and 1 (February 17, 2018), CAHUP073546 mm diameter at the base of the sepals. Dorsal sepal: ovate, fl attened, 5 mm PLANT DESCRIPTION long by 2 mm wide. Lateral sepals: Growth habit: upright, sympodial, ep- ovate, fl attened, 5.5 mm long by 3 mm iphyte. Pseudobulbs: ovoid, curved, wide, adnate to the column foot. Pet- clustered, 5 mm to 1 cm long by 4.8 als: lanceolate, fl attened, 1.9 mm long to 6 mm in diameter, covered by old by 0.90 mm wide. Labellum: broadly remains of persistent bristly cata- obtuse, curved down, 2 mm long by 1 phylls about 1 to 2 cm long; unifoli- mm wide, middle portion deeply chan- ate. Leaves: spathulate, apex emar- Bulbophyllum crassiusculum neled, apex recurved. Column: cylin- ginate, entirely glabrous, 6 mm to 1.5 infl orescence drical, short, 1 mm long by 1.2 mm cm long by 1.5 to 2 mm wide. Infl ores-

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glossum is most similar to Bulb. submarmoratum J.J. Sm., but differs in the much shorter, upright inﬂ orescence of Bulb. prasinoglossum; and the posi- tioning of the ridges on the labellum, which in Bulb. prasinoglossum are in a central position, close together, the central ridges on the labellum of Bulb. submarmoratum are more widely spaced; the petals of Bulb. prasinoglossum are ovate, whereas those of Bulb. submarmoratum are triangular.

Habitat and Distribution: Bulbophyl- lum prasinoglossum is only known Bulbophyllum prasinoglossum from Bukidnon and Misamis Oriental, infl orescence on Mindanao. It grows as an epiphyte, cence: upright, arising from the base 5 nerved, adaxially densely papillate, in partial shade in mossy dipterocarp of the pseudobulb, cylindrical, race- abaxially glabrous, fl attened below forest, at 1,200 metres above sea lev- mose, horizontal curved; rachis cylin- the labellum, Petals: ovate, concave, el. drical, slightly decurrent, 1.9 cm long 1.6 mm long by 1 mm wide, apex ob- by 1.18 mm in diameter; bearing about tuse, margins serrated, adaxially and Etymology: The specifi c epithet refers 13 fl owers, opening fi rst at the apex abaxially densely papillate, single- to the leek-green colour of the label- of the rachis, opening successively; nerved. Labellum: reniform, fl eshy, lum. fl ower 4.1 mm across lateral sepals; deeply sulcate, margin erose, anteri- three non-fl oral bracts are tubular, orly vesicular papillose, 0.3 mm long Bulbophyllum puberulosum Cabac- about 6.6 mm long and fl oral bracts by 0.2 mm wide and 0.1 mm thick, with tulan, Cootes, M.D. De Leon and oblong, involute, 2.2 mm long by 1 two distinct blunt keels and concavi- Pimentel sp. nov. mm wide when fl attened, non-scent- ty at the base 0.3 mm in diameter, lay- ed. Flower colour: sepals and petals ing fl attened above the lateral sepals. Section: Stachysanthes (Blume) J.J. are greenish yellow with purple lines, Column: short, fl attened rectangular, 1 Verm. and P. O‘Byrne 2008 labellum bright emerald green. Pedi- mm long by 1 mm in diameter; stelidia cel and ovary: short, conical, grooved, whorled tridentate about 0.4 mm long; TYPE: PHILIPPINES, Mindanao, Bukid- glabrous, about 1.5 mm long by 1 mm column foot short trapezoid, 0.4 mm non, at 1,200 metres elevation above in diameter at the base of the sepals long by 0.6 mm wide, mentum about sea level. HOLOTYPE: MDL1803007 and petals and 0.5 mm in diameter at 0.1 mm long. Anther cap: ovate, slight- (March 2, 2018), CAHUP073547 the base of the rachis. Dorsal sepal: ly cucullate, 0.6 mm long by 0.35 mm broadly ovate, 3.5 mm long by 3.2 mm wide. Pollinia: two, paired, ovoid, 0.3 PLANT DESCRIPTION wide, concave, apex rounded, base mm long by 0.2 mm wide. Stigma: ob- Growth habit: upright, sympodial. obtuse, 5 nerved, adaxially densely long, concave, about 0.3 mm in diam- Pseudobulbs: clustered, globose, 1 papillate, abaxially glabrous. Later- eter. mm long by 1 mm in diameter, unifo- al sepals: broadly obliquely ovate, 2.8 liate, internodes sessile. Leaves: pet- mm long by 2 mm wide, apex rounded, Comparison: Bulbophyllum prasino- iolate; petiole glabrous, 0.5 mm long by 0.5 mm in diameter, grooved; leaf Bulbophyllum prasinoglossum blade lanceolate, 1.4 to 4.3 cm long by plant 5 mm to 1.1 cm wide, fl attened, apex emarginate, base cuneate, adaxially and abaxially glabrous, margins entire. Infl orescence: axillary, upright, racemose, up to 2.5 cm long by 0.60 mm diameter, rachis erect; bearing up to 6 fl owers, 4.3 mm across the lateral sepals; fl owers resupinate and unscented. Peduncle: acicular, 1.9 cm long by 0.50 mm in diameter. Flower color: base color is pale yellow, column foot and column are yellow, labellum is yellow with two lateral and opposite purple lines anteriorly. Flo- ral bracts: triangular, persistent, gla-

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tened (this feature has remained con- stant amongst the ﬂ owering plants ex- amined from different localities); and the keel of Bulb. crassiusculum, at its column foot is low and bluntly, broadly triangular when viewed in proﬁ le, whereas the keel of Bulb. puberulosum is more prominent and runs from the centre of the column foot to the column; when viewed from the front it is triangular, raised, and well-demar- cated from the column foot.

Habitat and distribution: Bulbophyl- lum puberulosum is so far, known only from the province of Bukidnon on the island of Mindanao. It grows as an epiphyte, clinging to branches covered with moss, at elevations of about 1,200 meters above sea level.

Etymology: The speciﬁ c epithet refers to the puberulous adaxial surface of the distal petals.

Bulbophyllum vinicolor Cabactu- lan, Cootes, Aurigue, Pimentel and M.D. De Leon sp. nov.

Section: Brachystachyae Benth. and Hook.f.

TYPE: PHILIPPINES, Mindanao, Bukid- non, at 1,500 metres elevation above sea level. HOLOTYPE: MDL1803008 Bulbophyllum puberulosum plant (February 17, 2018), CAHUP073548

PLANT DESCRIPTION Growth Habit: upright, sympodial, epiphyte. Pseudobulbs: cylindrical, curved, 6 mm high by 3 mm in diameter; internodes sessile, covered by brous, green, 1.8 mm long by 1.2 mm column foot rectangular, 1 mm long by old remains of persistent bristly cat- wide when fl attened, 2 involute basal 0.20 mm wide. Anther cap: triangu- aphylls; unifoliate. Leaves: petiolate; bracts. Pedicel including ovary: coni- lar, cucullate, 0.40 mm long by 0.4 mm petiole grooved, up to 1.8 cm long by cal, grooved, glabrous, 2 mm long by wide. Pollinia: oblate, two, unequally 0.15 mm in diameter; leaf blade ob- 0.8 mm in diameter at the base and paired, 0.20 mm in diameter. Stigma: long, apex slightly curved, entirely 1 mm diameter at the base of the se- oblong, 0.2 mm in diameter. glabrous, up to 3.7 cm long by 1.4 cm pals. Dorsal sepal: ovate, fl attened, wide. Infl orescences: cylindrical, rac- 3.8 mm long by 1.5 mm wide. Lateral Comparison: Bulbophyllum puberu- emose, rachis up to 0.5 mm long by sepals: ovate, fl attened, 3.5 mm long losum is most similar to Bulb. crassi- 0.2 mm in diameter, arising from the by 2.3 mm wide, adnate to the column usculum Cabactulan, Cootes, M.D. base of the pseudobulb, up to 6 half- foot. Petals: lanceolate, fl attened, De Leon and Pimentel, but differs in opened fl owers. Peduncle: slender, 1.9 mm long by 0.7 mm wide, puber- the size of the fl owers, 6 mm across lenticellate, 1.5 cm long by 0.09 mm ulous adaxial surface distally. Label- the lateral sepals in Bulb. crassiuscu- in diameter, with 2 conical-tubular lum: oblong, curved down, 1.5 mm lum versus 4.3 mm across the later- non-fl oral bracts about 4.5 mm long long by 0.50 mm wide, middle deeply al sepals in Bulb. puberulosum; the and 1.5 mm in diameter, fl oral bracts channeled. Column: cylindrical, short, shape of the leaves in Bulb. crassius- ovate, concave, 3.5 mm long by 1.9 0.3 mm long by 0.2 mm wide; stelidia culum are semi-terete, whereas the mm wide when fl attened. Flower col- acute-acuminate, about 0.10 mm long; leaves of Bulb. puberulosum are fl at- our: sepals, petals, and labellum are

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whereas the stelidia of Bulb. hyposiphon have a single, minute tooth cen- trally.

Habitat and Distribution: Bulbophyl- lum vinicolor is only known from Bukidnon, on Mindanao. It grows as an epiphyte, in partial shade in mossy dipterocarp forest, at 2,000 metres above sea level. Bulbophyllum vinicolor plant Etymology: The specifi c epithet refers to the wine-red colouration of the wine red, anther cap white. Pedicel basally thickened, lower surface gla- blooms. and ovary: short, conical, grooved, brous, deeply channeled at the mid- glabrous, about 1 mm long by 1 mm in dle with a pair of rectangular ridges Cylindrolobus benmabantai Cabac- diameter at the base of the sepals and on both sides about 1 mm long by 0.3 tulan, Cootes, M.D. De Leon and petals and 0.2 mm in diameter at the mm high. Column: short, stout, 0.30 Pimentel sp. nov. base of the rachis. Dorsal Sepal: el- mm long by 0.20 mm; stelidia triden- liptic-ovate, concave, 5 mm long by 2 tate, about 0.3 mm long. Column foot: TYPE: PHILIPPINES, Mindanao, Bukid- mm wide, apex acuminate, 3-nerved, rectangular, adnate to the lateral se- non, at 1,200 metres elevation above nerves dark wine red, prominently pals, about 0.4 mm long and 0.5 mm sea level. HOLOTYPE: MDL1803009 raised abaxially, margins sparsely and wide. Anther Cap: ovate, near fl at- (March 2, 2018), CAHUP073549 minutely papillose, adaxially sparse- tened, papillose, 0.5 mm long by 0.30 ly minutely papillose, abaxially lenti- mm wide; mentum: short, about 0.01 PLANT DESCRIPTION cellate. Lateral Sepals: elliptic-ovate, mm long. Pollinia: two, paired, ovate, Growth habit: upright, sympodial. apex acuminate, fused at the base, around 0.20 mm long by 0.13 mm in Pseudobulbs: cylindrical, up to 1 metre 4 mm long by 2 mm wide, 5-nerved, diameter. Fragrance: unknown. In- long by 6 mm in diameter. Leaves: lan- nerves purplish, prominently raised fructescence: not seen. ceolate, linear-lanceolate, base acute, abaxially, margin sparsely minutely apex acute-acuminate, glabrous, en- papillose, adaxially sparsely minute- Comparison: Bulbophyllum vinicolor is tire, fl eshy, 11 cm long by 1.5 cm wide. ly papillose, abaxially lenticellate. most similar to Bulb. hyposiphon from Inflorescence: short, axillary, sin- Petals: elliptic; up to 1.8 mm long by Borneo but differs in the shape of the gle-fl owered, bearing 3 to 5 cucullate 0.6 mm wide. single-nerved, slightly labellum, which in Bulb. vinicolor is fl owers in cavities on the pseudobulb, raised abaxially; margins sparsely and distinctly recurved, with a deep chan- opening at the same time, fl owers not minutely papillose, adaxially sparse- nel lengthwise, whereas the labellum opening widely, 1.95 cm wide across ly and minutely papillose and abaxi- of Bulb. hyposiphon is gently curved; the lateral sepals. Flower color: pet- ally lenticellate. Labellum: ovate, in- the shape of the stelidia of Bulb. vin- als and sepals are white, sometimes ner surface densely papillose, fl eshy, icolor are three-toothed at the apex, with few purple spots near the base of

Bulbophyllum vinicolor Bulbophyllum vinicolor

9 OrchideenJournal Internet | Vol. 6 · 2

Dendrobium deleonii inﬂ orescence

Comparison: Cylindrolobus benma- Etymology: The specifi c epithet hon- bantai is most similar to Cyl. longissi- ors Benjamin Mabanta, in whose col- mus (Ames & Quis.) W. Suarez, but lection it was fi rst noted as an unde- Cylindrilobus benmabantai differs in the number of fl owers per in- scribed species. column, labellum white with brownish fl orescence, which in Cyl. benmabantai yellow apical margins and callus is yel- is single-fl owered, whereas Cyl. long- Dendrobium deleonii Cabactulan, low, bracts are yellow, pedicel yellow issimus is from two to four-fl owered. Cootes and Pimentel sp. nov. green but turns purple as it ages. Pe- The lateral lobes of the labellum of Cyl. duncle: short, stout, terete, glabrous, benmabantai are broadly falcate, mid- Section Formosae (Bentham and 2 mm long by 1.5 mm in diameter. lobe ovate, undulate, base contracted Hooker f.) Hooker f. Bracts: 4, narrowly ovate, oblong, fl at- in the center of the labellum between tened, glabrous, fl eshy, 1.2 cm long by the base of the lateral lobes with sin- TYPE: PHILIPPINES, Mindanao, Bukid- 5 to 6 mm wide with 1.2 mm intervals gle triangular fl attened keel between non, at 1,300 metres elevation above between each bract. Pedicel and ova- the lateral lobes running below the sea level. HOLOTYPE: MDL1803010 ry: cylindrical, grooved, glabrous, 1.5 base of the labellum, whereas Cyl. lon- (March 2, 2018), CAHUP073550 cm long by 1.5 mm in diameter. Dor- gissimus has ovate lateral lobes, mid- sal sepal: elliptic-ovate, concave, gla- lobe broadly ovate with three ridges PLANT DESCRIPTION brous, 1.3 cm long by 6.3 mm wide. Lat- run the majority of the length of the la- Growth Habit: upright, sympodi- eral sepals: triangular falcate, slightly bellum. al, forming clumps. Stems: cylindri- concave, glabrous, 1.18 cm long by 8 cal, conical, grooved, stiff, can reach mm wide. Petals: oblong, apex slightly Habitat and Distribution: Cylindrolo- over 60 cm in height by 2 cm in diame- concave, 1.2 cm long by 4.5 mm wide. bus benmabantai is so far, known on- ter, roots are white. Leaves: are leath- Labellum: trilobed, fl eshy, recurved, ly from the province of Bukidnon on ery, oblong-lanceolate to linear-lan- 5.2 mm long; lateral lobes ovate, 2 mm the island of Mindanao. It grows as ceolate, 3.5-6.5 cm long and 1-1.9 cm long by 2.8 mm wide, interiorly dense- an epiphyte, clinging to branches cov- wide, base truncate, apex acute, alter- ly villose; midlobe obtuse, apically ered with moss, at elevations of about nate, overlapping each other, present undulate, densely villose, with a sin- 1,200 meters above sea level. on the upper half of the stems, bearing gle mid rib between the lateral lobes about 1.2 mm long. Column: cylindri- Dendrobium deleonii in situ cal, concave and curved, 6.2 mm long by 3.5 mm in diameter; stelidia acuminate, about 1 mm long; column foot trapezoid, densely pubescent, 6 mm long by 3.7 mm wide from the column and 1.5 mm wide from the labellum, with two-ridges in the center about 2.1 mm long. Stigma: oblong, concave, 2.1 mm long by 2 mm wide. Anther cap: cucullate, obtuse, 1.5 mm long by 1.3 mm wide. Pollinia: four, paired, clavate, 1 mm long by 0.3 mm wide. In- fructescence: not seen.

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5 to 40 leaves, internode distance of 1 margins undulate and slightly dentate. TYPE: PHILIPPINES: Mindanao: Bukid- to 2.5 cm, adaxially and abaxially gla- Spur: short, acute, horizontally orient- non, at 1,400 metres elevation above brous, veins fl attened, stem turns dark ed, 1.7 cm long, apex of the spur fused sea level. HOLOTYPE: MDL1803011 brown as it ages, old leaf sheaths pre- at distal 3 mm. Column: fl attened, tri- (March 2, 2018), CAHUP073551 sent on the lower portion of stem. In- dentate, oblongate, 4 mm long by 6 fl orescence: short, apical-axillary, en- mm wide, two 2 mm stelidia that are PLANT DESCRIPTION tirely glabrous, bearing up to 3 pedun- acute-acuminate, pointing forwards. Growth habit: upright, sympodial. cles per stem, carrying up to 3 fl owers Column foot: green, oblongate, con- Pseudobulbs: clustered, conical ob- per raceme, (previously, a specimen cave, from mentum to column it is 2 to long, wrinkled, 1.5 to 4 cm long by 4 with 21 fl owers in one cane had been 2.2 cm long and 7 to 9 mm wide. An- to 7 mm in diameter, unifoliate, cov- documented by the authors) fl ower 6 ther cap: squarish, concave, minute- ered with cataphylls extending to pet- to 8 cm across the lateral sepals. Flow- ly papillose, anther margins below the iole base, internodes sessile. Leaves: er color: petals and sepals white. Pe- stigma are fi mbriate, 3.2 mm long by petiolate; petiole 1.5 to 4 cm long by duncle: terete, white, 3 mm long 3 mm 3.2 mm wide. Stigma: ovate, concave, 1 to 2 mm in diameter, grooved; leaf wide. Pedicel and ovary: terete, trian- about 2.5 to 4.5 mm long by 3.9 mm blade lanceolate, leathery, 7 to 11 cm gular at the base of the sepals, slight- wide. Pollinia: paired, linear-lanceo- long by 1 to 2 cm wide, apex round- ly winged, white, 3.5 cm long by 2.5 late, falcate, 2.3 mm long by 0.6 mm ed, base cuneate, adaxially and abax- to 6 mm wide. Bracts: short, persis- wide. Infructescence: roughly ovoid, ially glabrous, margins entire, lateral tent, acute-acuminate, 1 cm long by 3 somewhat fl attened on three sides, veins parallel, adaxially absent, abax- mm wide. Dorsal sepal: fl eshy, fl at- winged, 4.5 cm long by 2.0 cm wide. ially fl attened, 3-nerved on both sides tened, slightly revolute, narrowly ob- of the leaf. Infl orescence: synanthous, long-ovate, margins entire, base ob- Comparison: Dendrobium deleonii is racemose, upright, pendent, up to 13. long, apex acute-acuminate, revolute, most similar to Den. sanderae var. ma- 5 cm long by 1 cm in diameter, rachis 3.3 to 4.5 cm long by 8 mm wide at the jor Hort., but differs in the propor- semi-arcuate, slightly decurrent, bear- base of the column, 1.18 to 2 cm wide tionately shorter sidelobes, the short- ing up to 100 fl owers, 5 mm across the at the center, mid rib present from the er and proportionately wider midlobe. lateral sepals, fl owers fi rst open from base. Lateral sepals: fl eshy, fl attened, The mid lobe of Den. sanderae var. ma- the base of the rachis, fl owers mildly slightly revolute, lanceolate falcate, jor is angled downwards at the junc- fragrant like crushed leaves of the fra- margins entire, 5 to 5.8 cm long from tion of the sidelobes and midlobe grant screw pine (Pandanus sp.) Pe- spur to apex, 4.56 to 4.6 cm long from whereas the midlobe of Den. deleo- duncle: acicular, 6.3 to 9.5 cm long by column base, 2.2 to 2.5 cm wide from nii is straight or slightly curved. When 0.5 to 0.7 mm in diameter. Flower col- column to spur, 1.2 to 1.5 cm wide, at similar-sized fl owers are viewed ven- our: petals and sepals are greenish the widest point, mid rib present from trally, the throat of Den. deleonii is yellow, and the labellum is greenish the base. Petals: fl eshy, fl attened, narrower. The leaves of Den. deleonii yellow with yellow keels. Bracts: el- slightly revolute, broadly obovate, are also proportionately smaller and liptic-ovate, 11-nerved, 4.5 mm by 2.3 margins entire, base rounded, sparse- less curved than those of Den. sander- mm wide, persistent, involute, fl oral ly papillate at the base, apex abrupt- ae var. major. bracts about 3.5 mm long by 1.7 mm ly acute-acuminate, 3.5 to 5 cm long by wide, basal bracts one. Pedicel and 6.7 mm wide at the base of the column, Habitat and Distribution: Dendrobi- ovary: cylindrical, grooved, glabrous, 2 to 2.9 cm wide at the center. Label- um deleonii is only known from the 2 mm long by 0.40 mm in diameter at lum: three lobed, with the lateral lobes mossy, cloud rainforest of Bukidnon the base and 0.45 mm in diameter at upright-curved to curved, surround- on Mindanao. It grows as an epiphyte the base of sepals. Dorsal sepal: lan- ing the column; lateral lobes are short, in full sunlight, at elevations of be- ceolate, 4 mm long by 1.3 mm wide, triangular, basally green with purple tween 1,000 and 1,300 meters above apex apiculate, slightly revolute, sin- markings spreading towards the exte- sea level. gle-nerved. Lateral sepals: broadly rior margins, 2.5 to 3.4 cm long by 5 to Etymology: The specifi c epithet hon- falcate, 4.5 mm long by 1.3 mm wide, 9 mm wide, anteriorly minutely papil- ors Dr. Miguel David De Leon who fi rst apex apiculate, fl attened parallel to late, margins entire; midlobe is trian- photographed the species in situ, the labellum, single-nerved. Petals: gular-ovate when fl attened, bilobed thereby and fi nally establishing, after spathulate, slightly revolute, 3.3 mm and abruptly mucronate at the cent- many years, the provenance of plants long by 1.3 mm wide, 3-nerved. La- er at about 1 mm long, sparsely pap- sold in Bukidnon markets. bellum: broadly ovate, outer half bent illose towards the junction of the mid downwards, 2.5 mm long by 1.6 mm lobe and lateral lobes, purplish lines Dendrochilum charisae Cabactu- wide, 2 basal keels about 0.15 mm running towards the greenish base of lan, Cootes, M.D. De Leon, and Pi- long by 0.09 mm high. Column: short, the column, interior mid lobe slightly mentel sp. nov. unguiculate, 1.3 mm long by 0.65 mm raised with ridges where pigmented in wide, column hood, fl attened den- veins are located, 4.7 to 5.82 cm long Subgenus: Platyclinis (Benth.) tate, stelidia broadly falcate, about 0.5 from mentum to bilobed center, 1.19 Pfi tzer, Section: Eurybrachium Carr mm long. Anther cap: cordate, cucul- cm wide from the base of the lateral ex J.J. Wood, H.A. Pedersen, and J.B. late, about 0.3 mm in diameter. Stig- lobes, 2.7 to 5.1 cm wide at the center, Comber ma: oblong, concave, about 0.3 mm in

11 OrchideenJournal Internet | Vol. 6 · 2

Dendrochilum charisae ﬂ owers

Dendrochilum charisae

diameter. Pollinia: two, paired, about Subgenus: Platyclinis (Benth.) 0.15 mm long by 0.1 mm wide, clavate. Pfi tzer, Section: Eurybrachium Carr ex J.J. Wood, H.A. Pedersen, and J.B. Dendrochilum derekcabactulanii Comparison: Dendrochilum charisae Comber is most similar to Ddc. mearnsii Ames, but differs in the shape of the label- TYPE: PHILIPPINES: Mindanao: Bukid- lum, which in Ddc. charisae is broad- non, at 1,400 metres elevation above ly ovate, whereas the labellum of Ddc. sea level. HOLOTYPE: MDL1803012 mearnsii is cordate; the petals of Ddc. (March 2, 2018), CAHUP073552 charisae are slightly revolute, whereas the petals of Ddc. mearnsii are fl at; the PLANT DESCRIPTION fl owers on the rachis of Ddc. charisae Growth habit: upright, sympodial. are less noticeably spirally arranged, Pseudobulbs: clustered, conical to whereas those of Ddc. mearnsii are ovate, wrinkled, 1.8 to 3 cm long by distinctly spiralling. 7.2 mm to 1.1 cm in diameter, unifoliate, covered with cataphylls extending Habitat and Distribution: Dendrochi- to the petiole base, internodes ses- lum charisae is found in shady, mossy sile. Leaves: petiolate; petiole green, dipterocarp forests in Bukidnon Prov- 3.8 cm long by 1.5 mm in diameter, ince, at 1,300 metres above sea level. grooved; leaf blade lanceolate, 14.5 to 25 cm long by 2.1 to 2.9 cm wide, apex Etymology: The specifi c epithet hon- emarginated, base cuneate, adaxial- ors Charisma A. Hampel, orchid col- ly and abaxially glabrous, margins en- lector, enthusiast and nurserywoman. tire, lateral veins parallel, adaxially absent, abaxially fl attened, 2-nerved on Dendrochilum derekcabactulanii both sides of the leaf, leathery. Infl o- M.D. De Leon, Cootes and Pimen- rescence: synanthous, cylindrical, rac- tel sp. nov. emose, upright, pendent, up to 11 cm

12 Internet | Vol. 6 · 2 DendrochilumOrchideenJournal kennedyi fl owers long by 2 mm in diameter, rachis spi- Dendrochilum kennedyi M.D. De Le- ral, decurrent, bearing up to 42 non- on, Cootes, Cabactulan and Pi- resupinate fl owers, 6 mm across the mentel sp. nov. lateral sepals, fl owers fi rst open from the base of the rachis, fl owers mild- Subgenus: Platyclinis Section: Plat- ly fragrant. Peduncle: acicular, 27 cm yclinis (Benth.) Pfi tzer long by 1 mm in diameter. Flower colour: petals, sepals and labellum are TYPE: PHILIPPINES, Mindanao, Bukid- orange. Bracts: ovate, 13-nerved, per- non, 1,200 metres elevation above sea sistent, involute, fl oral bracts about 4 level. HOLOTYPE: MDL1803015 (March mm long by 2.7 mm wide, basal bracts 2, 2018), CAHUP073555 one, 4 mm by 3 mm wide. Pedicel and ovary: cylindrical, grooved, glabrous, PLANT DESCRIPTION 4.5 mm long by 0.90 mm in diameter. Growth habit: upright; sympodial. Dorsal sepal: broadly ovate, 6 mm long Pseudobulbs: clustered, conical ob- by 2 mm wide, apex acuminate, revo- long, 1.5 3.22 cm long by 4 to 7.5 mm lute, 3-nerved. Lateral sepals: narrow- in diameter, unifoliate, covered with ly ovate, 5.3 mm long by 3.8 mm wide, 3 cataphylls about 5 cm long, extend- apex acuminate, revolute, single- ing to the petiole base, internodes 2.5 nerved. Petals: broadly ovate, apex mm long by 2 mm in diameter covered acuminate, 5 mm long by 2.8 mm wide, with old bristled sheaths. Leaves: pet- 3-nerved. Labellum: broadly ovate, iolate; petiole brown, glabrous, 5 to outer half bent upwards, 3.7 mm long 6 cm long by 1.5 mm in diameter; leaf by 2.8 mm wide, adaxially and abaxi- blade linear, 20 to 24 cm long by 5 ally grooved, 2 basal keels about 1 mm mm wide, apex acute-acuminate, base long. Column: short, rounded, con- acute, adaxially and abaxially gla- cave, 1 mm long by 1 mm in width, ste- brous, margins thickened, 2-nerved lidia oblong, about 0.5 mm long by 0.3 on both sides of the leaf, slightly mm wide. Anther cap: narrowly ovate, slightly cucullate, 0.8 mm long by 0.4 mm in diameter. Stigma: lunate, con- Dendrochilum kennedyi cave, about 0.8 mm in diameter. Pol- in situ linia: two, paired, clavate, about 0.85 mm long by 0.09 mm wide. Infructes- cence: not seen.

Comparison: Dendrochilum derekcabactulanii is most similar to Ddc. hampelii Sulistyo, Gravendeel, R. Boos, and Cootes but differs in the shape of the apices of the ﬂ oral segments, which in Ddc. derekcabactulanii are acute, whereas those of Ddc. hampelii are rounded; the ﬂ owers of Ddc. derekcabactulanii are considerably smaller at 6 mm across the lateral sepals, whereas those of Ddc. hampelii are more than 1.3 cm across the lateral sepals.

Habitat and Distribution: Dendro- chilum derekcabactulanii is found in shady, mossy dipterocarp forests in Bukidnon province on Mindanao, at 1,300 metres above sea level.

Etymology: The speciﬁ c epithet hon- ours Derek D. Cabactulan, Philippine native ﬂ ora enthusiast and researcher.

13 OrchideenJournal Internet | Vol. 6 · 2 raised from each side of the leaf, mid- Dendrochilum, and his response was PLANT DESCRIPTION dle is sulcate, convex, leathery. In- “What a marvelous thing - and, no, I Growth habit: upright, sympodial. fl orescence: synanthous, upright to have defi nitely never seen anything Pseudobulbs: clustered, conical, ob- semi-pendulous, up to 30 cm long by 3 like it before!” long, wrinkled, 8 to 9.5 mm long by 5 cm diameter, rachis erect; bearing up to 9 mm in diameter, unifoliate, cov- to 7 fl owers, 1.2 cm across the lateral Habitat and Distribution: Dendro- ered with 3 cataphylls about 13 cm sepals; fl owers resupinate; unscent- chilum kennedyi was fi rst recorded long, extending to the petiole base, ed. Peduncle: acicular, 27 cm long by from Surigao del Norte, at 300 metres internodes sessile. Leaves: petio- 1 mm in diameter. Flower color: base above sea level, growing on somewhat late, petiole green, glabrous, 3 to 3.5 color is white with maroon markings dry substrate in humid and windy con- mm long by 1 to 1.3 mm in diameter, on each side of petals and sepals, la- ditions close to a river, in bright sun grooved; leaf blade lanceolate, 1.85 bellum is entirely maroon, column foot as an epiphyte 0.5 to 2 meters above to 3.8 cm long by 4.5 to 8 mm wide, is saffron yellow, and column is white. ground at the point of branching of apex emarginate, base acute, adaxi- Floral bracts: lanceolate, 9-nerved, tree limbs and as a lithophyte in rock ally and abaxially glabrous, margins persistent, glabrous, dull red, 5 mm crevices or depressions; in both cas- entire, single nerved on both sides of long by 1.8 mm wide when fl attened, es, the surroundings are somewhat the leaf, slightly plicate, leathery. In- 6 involute basal bracts. Pedicel in- dry, but the roots are covered with leaf fl orescence: synanthous, upright, rac- cluding ovary: conical, grooved, gla- litter. Recently, the species has also emose, up to 2 cm long by 7.5 mm in brous, 4 mm long by 0.5 mm in diam- been found in Bukidnon. diameter, rachis erect, grooved; bear- eter at the base and 1 mm diameter at ing up to 17 fl owers, 5 mm wide across the base of the sepals. Dorsal sepal: Etymology: The authors are delighted the lateral sepals; fl owers non-resu- elliptic-ovate, 6 mm long by 2.5 mm to name this outstanding and unique pinate; fl owers unscented. Peduncle: wide, slightly involute, single-nerved. species in honour of ornithologist, acicular, 3 to 5 cm long by 0.30 mm Lateral sepals: ovate, 6.5 mm long by book author and conservationist Rob- in diameter. Flower color: base color 3 mm wide, slightly involute, single- ert S. Kennedy. His many authorita- is red orange, labellum, column foot nerved. Petals: lanceolate, 4.5 mm tive works on Philippine birds, includ- and column are entirely dark red. Flo- long by 2.2 mm wide, slightly involute, ing the Birds of the Philippines, re- ral bracts: lunate, 18-nerved, persis- single-nerved. Labellum: hastate-cor- main useful resources for researchers tent, glabrous, green, 2.2 mm long date, curved downwards, 5.4 mm long and naturalists. To this day, he contin- by 3 mm wide when fl attened, 2 invo- by 2.5 mm wide, bilaterally, 2 raised ues to raise funds to support various lute basal bracts. Pedicel including keels in the middle, 0.50 mm long by conservation efforts in the Philippines ovary: conical, grooved, glabrous, 0.5 0.30 mm high, middle deeply chan- and the United States. mm long by 0.2 mm in diameter at the neled; sidelobes rounded fl attened base and 0.5 mm diameter at the base laterally, 1 mm long by 1 mm wide. Col- Dendrochilum perrineae Cabactu- of the sepals. Dorsal sepal: ovate, umn: rectangular curved, 4.5 mm long lan, Cootes, M.D. De Leon, Pimen- 2.2 mm long by 1.2 mm wide, slightly by 0.5 mm wide basally and 1 mm api- tel and Binayao sp. nov. curved inwards, single-nerved. Lateral cally; column hood rounded; stelid- sepals: ovate, 2.3 mm long by 1.3 mm ia falcate, about 2.3 mm long; column Subgenus: Platyclinis Section: Eury- wide, slightly undulate, single-nerved. foot rectangular, 2.5 mm long by 0.50 brachium Carr ex J.J. Wood, H.A. Ped- Petals: ovate, 4.5 mm long by 2.2 mm mm wide; rostellum oblong, about ersen, and J.B. Comber wide, fl attened, single-nerved. Label- 0.60 mm long by 0.3 mm wide. An- lum: broadly ovate, curved down, 1.7 ther cap: cucullate-cordate, 0.75 mm TYPE: PHILIPPINES, Mindanao, Bukid- mm long by 1 mm wide, middle deeply long by 1 mm wide, minutely caruncu- non, 1,500 metres elevation above sea channeled; sidelobes ovate fl attened late at the center. Pollinia: two, paired, level. HOLOTYPE: MDL1803014 (March laterally, 0.85 mm long by 0.3 mm clavate, 0.40 mm long by 0.25 mm 2, 2018), CAHUP073554 wide. Column: cylindrical, 0.9 mm long wide, stipe 0.3 mm long. Stigma: oblong, 0.6 mm long by 0.3 mm wide. In- fructescence: not seen. Dendrochilum perrineae

Comparison: A thorough search of the relevant literature regarding the genus Dendrochilum, from the Philip- pines and neighbouring countries, has not revealed any close relative to this amazing species. The large fl owers, with the few-fl owered infl orescence are an unusual combination for members of this genus. Several imag- es of this species were sent to Henrik . Pedersen, a specialist in the genus

14 Internet | Vol. 6 · 2 OrchideenJournal

Subgenus: Platyclinis (Benth.) Pﬁ tzer, Section: Eurybrachium Carr ex J.J. Wood, H.A. Pedersen, and J.B. Comber

TYPE: PHILIPPINES: Mindanao: Bukid- non, 1,300 metres elevation above sea level. HOLOTYPE: MDL1803013 (March 2, 2018), CAHUP073553

PLANT DESCRIPTION Growth habit: upright sympodial. Dendrochilum perrineae Pseudobulbs: clustered, conical ob- infl orescence long, 1.66 cm long by 2.2 mm in diameter, unifoliate, covered with 3 cataphylls extending to the petiole base, about 25 mm long, internodes sessile. Leaves: sessile, leathery, leaf blade linear, 6.4 to 10.2 cm long by 1.5 to 2 mm wide, apex acute-acuminate, base acute, slightly plicate, adaxially by 0.7 mm wide; stelidia acute-acumi- ervation of their culture and natural re- and abaxially glabrous, margins thick- nate, about 0.15 mm long; column foot sources. ened, 2-nerved on both sides of the rectangular, 0.20 mm long by 0.20 leaf. Infl orescence: synanthous, up- mm wide. Anther cap: triangular, cu- Dendrochilum perrinei Cabactu- right, slightly arching, up to 2.8 cm cullate, 0.3 mm long by 0.2 mm wide. lan, Cootes, M.D. De Leon, Pimen- long by 0.5 mm diameter, rachis slight- Pollinia: two, paired, 0.20 mm long by tel and Binayao sp. nov. ly decurrent; bearing up to 6 fl owers, 0.1 mm wide, clavate. Stigma: oblong, 0.2 mm in diameter. Infructescence: ovoid, slightly grooved, glabrous, 6 mm long by 5 mm in diameter.

Comparison: Dendrochilum perrineae is most similar to Ddc. apoense T. Hashimoto but differs in the shape of the petals which in Ddc. apoense are narrowly oblong, whereas the petals of Ddc. perrineae are ovate; the shape of the apex of the column differs considerably, in Ddc. apoense there are two outer stelidia with the middle portion being much shorter and distinctly toothed, whereas the shape of the apex of the column of Ddc. perrineae has two distinct outer stelidia but the middle portion is a single semi-circu- lar structure.

Habitat and distribution: Dendrochi- lum perrineae is so far, known only from the province of Bukidnon on the island of Mindanao. It grows as an epiphyte, clinging to branches covered with moss, at elevations of about 1,500 meters above sea level.

Etymology: The speciﬁ c epithet hon- ours Renee Araneta-Perrine, an ad- vocate for the welfare of the indige- nous tribes of Bukidnon and the pres- Dendrochilum perrinei

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1.3 cm across the lateral sepals; fl ow- Etymology: The specifi c epithet hon- ers resupinate; fl ower fragrance un- ours John Paul Perrine, agriculturist known. Peduncle: acicular, 7 cm long and biodiversity conservation advo- by 0.1 mm in diameter. Flower color: cate on whose landholdings the spe- petals and sepals are yellow, labellum cies was found. is entirely maroon with yellow midline, saffron yellow markings in the base of Epicrianthes charishampeliae Cabac- column foot, stelidia and column hood. tulan, M.D. De Leon, Cootes, and Bracts: lanceolate, involute, dull red, Pimentel sp. nov. three non-fl oral bracts, lanceolate, 9-nerved, persistent, glabrous, 3 mm TYPE: PHILIPPINES, Mindanao, Bukid- long by 2 mm wide when fl attened, fl o- non, 1,400 metres elevation above sea ral bracts 6 mm long by 0.15 mm wide level. HOLOTYPE: MDL1803016 (Febru- when fl attened. Pedicel including ova- ary 17, 2018), CAHUP073556 Epicrianthes charishampeliae ry: cylindrical, grooved, glabrous, 2.2 fl ower mm long by 1 mm in diameter. Dor- PLANT DESCRIPTION sal sepal: narrowly ovate, 9 mm long Rhizomes: cylindrical, 7.5 mm to 1.1 ment to the base; appendages linear, by 2.9 mm wide, curved inwards, sin- cm long, pendent, branching, com- minutely papillate, about 6 mm long gle-nerved. Lateral sepals: narrow- pletely covered with dried cata- by 0.3 mm wide. Labellum: mobile, ly ovate, 8 mm long by 3 mm wide, phylls, carrying the pseudobulbs at conical, apically barbate, basally and curved inwards, single-nerved. Petals: 1.5 cm intervals. Pseudobulbs: clus- laterally papillose, ellipsoid to ovoid ovate, 7.3 mm long by 2.8 mm wide, tered, oblong, four angled, slight- vesicles, 4.2 mm long by 2 mm wide, curved inwards, single-nerved. La- ly compressed, 7.5 mm to 1.3 cm long adaxially with two low keels that run bellum: panduriform, slightly curved by 4 to 8 mm in diameter. Leaves: el- half the length. Column: cylindrical, down, 5 mm long by 3.9 mm wide, 2 liptic-ovate, concave, sessile, leath- short, 1.5 mm long by 0.80 mm in di- raised keels in the middle, 2 mm long ery green, 1.8 to 4 cm long by 1.3 to 2 ameter, stelidia acuminate, 3 mm long, by 0.20 mm high, middle deeply chan- cm wide. Infl orescences: axillary, one column foot rectangular, 1 mm long by neled; sidelobes ovate fl attened lat- to two fl owers opening at a time. Pe- 0.50 mm wide. Anther cap: unguicu- erally, 1 mm long by 1 mm wide. Col- duncle: short terete, 6.0 mm long by late, concave, 0.80 mm in diameter. umn: rectangular curved, 3 mm long 0.8 mm in diameter, covered by two Stigma: oblong, concave, c. 0.5 in di- by 0.3 mm wide basally and 0.4 mm tubular sheaths about 3 mm long. Flo- ameter. Pollinia: unequally paired, ob- apically; column hood rounded; ste- ral bracts: short, about 1 mm long by long, 0.60 mm long by 0.40 mm in di- lidia above the column foot, narrow- 0.80 mm wide. Pedicel and ovary: cy- ameter. Fruit: ovoid, grooved, 22 mm ly falcate, about 1.3 mm long; column lindrically grooved, 6 mm long by 0.8 long by 9 mm in diameter. foot rectangular, 0.4 mm by 0.40 mm. mm in diameter from the rachis and 1 Anther cap: ovate, slightly cucullate, mm in diameter from the base of se- Comparison: Epicrianthes char- 0.4 mm long by 0.4 mm wide. Pollinia: pals. Flower colour: yellow with barred ishampeliae is most similar to Bul- two, paired, 0.35 mm long by 0.1 mm or spotted markings of reddish-pur- bophyllum stenomeris J.J. Verm. and wide, clavate. Stigma: oblong, 0.5 mm ple; petal appendages dark green; la- O’Byrne, from section Epicrianthes, long by 0.3 mm wide. Infructescence: bellum deep purple. Sepals: triangu- but differs in the ornamentation of the not seen. lar-ovate, revolute, 10 mm long by 3.7 labellum, which in Epicr. charishampe- mm wide, Petals: narrow, crescentic, liae is vesiculate, whereas the label- Comparison: Dendrochilum perrinei, with equally 5-paired, dark green mo- lum of Bulb. stenomeris is almost gla- fl orally, is most similar to Ddc. pan- bile appendages attached by a fi la- brous; and the column of Epicr. char- gasinanense Ames, but differs in the shape of the labellum, which in Ddc. Epicrianthes charishampeliae perrinei is panduriform, whereas the labellum of Ddc. pangasinanense is elliptic, with obliquely sub-triangular side lobes; the leaves of Ddc. perrinei are linear to about 10 cm long, whereas the leaves of Ddc. pangasinanense are lanceolate to oblong and about 20 cm long.

Habitat and Distribution: Found in shady, mossy dipterocarp forests in Bukidnon Province, at 1,300 metres above sea level.

16 Internet | Vol. 6 · 2 OrchideenJournal ishampeliae which bears a single, downward-pointing tooth, whereas the column of Bulb. stenomeris bears two, downward-pointing teeth.

Habitat and distribution: Epicrianthes charishampeliae is so far, known only from the province of Bukidnon on the island of Mindanao. It grows as an epiphyte, clinging to branches covered with moss, at elevations of about 1,400 meters above sea level.

Etymology: The specifi c epithet hon- ors Charis A. Hampel, orchid collector, Epicrianthes jimcootesii enthusiast, and nurserywoman. ages; appendages 5.5 mm long by 2 cr. davidii number up to 6 only on each Epicrianthes jimcootesii Cabactu- mm wide, surface papillose. Label- side; the labellum of Epicr. jimcootesii lan, M.D. De Leon and Pimentel sp. lum: sagittate, 2.7 mm long by 2 mm is heavily papillose on its sides and nov. wide; midlobe oblong, anterior edg- underside, whereas the labellum of es densely papillose, surface minutely Epicr. davidii is glabrous. TYPE: PHILIPPINES, Mindanao, Bukid- papillose, two basal ridges; underside non, 1,300 metres elevation above sea of the labellum grooved. Column: cy- Habitat and distribution: Epicrianthes level. HOLOTYPE: MDL1803017 (Febru- lindrical, 2 mm long by 1 mm in diam- jimcootesii is so far, known only from ary 17, 2018), CAHUP073557 eter, edges minutely dentate; stelid- the province of Bukidnon on the island ia paired, triangular; column foot rec- of Mindanao. It grows as an epiphyte, PLANT DESCRIPTION tangular, 1 mm long by 0.7 mm wide; clinging to branches covered with Growth habit: pendulous, sympodi- mentum about 0.2 mm long by 0.7 mm moss, at elevations of about 1,300 me- al, up to 80 cm long, branching, roots wide. Anther cap: cordate-truncate, ters above sea level. mainly at the base; rhizomes covered concave, anterior edges involute, 1.2 with persistent papery sheaths, rhi- mm long by 0.7 mm wide. Stigma: ob- Etymology: The specifi c epithet hon- zomes up to 2.5 mm in diameter; car- long, about 0.2 mm by 0.7 mm wide. ors Jim Cootes, author, expert and lov- rying pseudobulbs at 1.2 cm inter- Pollinia: rounded ovate, two unequal- er of Philippine orchid species. vals. Pseudobulbs: four angled, slightly paired, 0.70 mm in diameter. Fruit: ly fl attened, oblong-ovate, 1.5 cm long ovoid, deeply grooved, 4 cm long by 10 Epicrianthes neilkonradii Cabactu- by 8 mm wide, unifoliate, desiccated, mm in diameter. lan, Cootes, M.D. De Leon and Pi- brown with purplish tinge, upper sur- mentel sp. nov. face grooved basally. Leaves: ovate Comparison: Epicrianthes jimcootesii to oblong; 5.1 cm long by 2.4 cm wide is most similar to Epicrianthes davidii, TYPE: PHILIPPINES, Mindanao, Bukid- when fl attened, edges involute, mak- but differs in the number of append- non, 1,300 metres elevation above sea ing the appearance of being tubular; ages on the petals, which in Epicr. jim- level. HOLOTYPE: MDL1803018 (Febru- distinctly grooved on the upper sur- cootesii number up to 10 on each side, ary 17, 2018), CAHUP073558 face; apices obtuse, leathery, under- whereas the petal appendages of Epi- side dark green, upper surface purplish brown. Infl orescence: appearing from the base of the pseudobulbs, bearing 2 blooms at intervals, 1 cm Epicrianthes neilkonradii in diameter. Pedicel and ovary: 8 mm long by 1.3 mm in diameter, grooved. Only a single fl ower appears. Flower colour: sepals yellow with minute red maculations, petals yellow, appendages yellow, column base dark red with yellow, labellum yellow with reddish blush along the base with black papillose edges. Sepals: ovate becoming acute, edges involute at the apices, 9 mm long by 4.5 mm wide; surface glabrous. Petals: minute, oblong, 1 mm long, bearing 9 highly mobile append-

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PLANT DESCRIPTION neilkonradii vary from three to fi ve in at young age and glabrescent as it ag- Growth Habit: Pendulous, sympodial, number (the outer two can be vestigi- es, midvein adaxially depressed and glabrous, 80 cm long, branching, roots al), whereas the petal appendages of abaxially raised. Infl orescences: axil- mainly at the base; rhizomes covered Epicr. aquinoi are always three in num- lary, branching, pendulous, up to 30 with persistent papery cataphylls, car- ber; and the leaves of Epicr. neilkon- cm long, bearing up to 150 small fl ow- rying pseudobulbs at 2 to 2.6 cm inter- radii are lanceolate and purplish dark ers with sparsely stellate hairs from vals. Rhizome: 1.8 to 2 mm in diame- green, whilst those of Epicr. aquinoi the outer surface, fl owers 7 mm in di- ter. Pseudobulbs: ellipsoid to obovoid, are ovate to ovate-cordate and plain ameter. Peduncle: terete at the base, four angled, slightly fl attened, curved, green to bright green. grooved towards the fl owers, 4 to 9 8 mm to 1.1 cm long by 4 to 5 mm in cm long by 2 mm in diameter, sparsely diameter, unifoliate, appearing desic- Habitat and distribution: Epicrianthes stellate at young age and glabrescent cated. Leaves: ovate-lanceolate, 4.1 to neilkonradii is so far, known only from as it matures. Bracts: three non-fl oral 5.3 cm long by 1.9 to 2.3 cm wide, con- the province of Bukidnon on the island bracts, ovate, persistent, compressed cave, leathery, sessile, glabrous, me- of Mindanao. It grows as an epiphyte, to the rachis, 3 to 6 mm long by 3 mm dian adaxially grooved, apex acute, clinging to branches covered with wide; and fl oral bracts erect, persis- base obtuse, adaxially purplish green, moss, at elevations of about 1,300 me- tent, acute-acuminate, 0.7 mm long abaxially green. Infl orescence: ap- ters above sea level. by 0.4 mm wide. Flower colour: yellow pearing from the base of the pseudob- with uneven rounded purplish spots ulbs, sessile, bearing 1 to 3 blooms at Etymology: The specifi c epithet hon- on the petals and sepals. Dorsal Se- intervals, with only 1 fl ower opening at ors Neil Konrad Binayao III, a conser- pal: ovate, concave, up to 3.4 mm long a time. Pedicel and ovary: cylindrically vationist, wildlife photographer, and a by 2 mm wide. Petals: broadly ovate, longitudinally grooved, 5 to 6 mm long native of Bukidnon. 3 mm long by 2 mm wide. Lateral Se- by 0.80 mm in diameter from the base pals: elliptic-ovate, concave, 4.1 mm of the rachis and 1 mm diameter from Robiquetia micramphora Cabactu- long by 2.3 mm wide. Labellum: three the base of sepals. Flower color: se- lan, Cootes, Pimentel and M.D. De lobed; side lobes erect, short, squar- pals and labellum yellow with spread- Leon sp. nov. ish 0.7 mm long by 0.7 mm wide; mid ing minute purple spots, petals and its lobes triangular, fl eshy, 0.5 mm long appendages yellow, column base pur- TYPE: PHILIPPINES, Mindanao, Bukid- by 0.5 mm wide; spur ventricose, cy- ple. Sepals: ovate-lanceolate, 8 mm non, 900 to 1,000 metres eleva- lindrical, up to 6 mm long by 1.5 mm long by 3.5 mm wide, spreading, gla- tion above sea level. HOLOTYPE: in diameter. Pedicel with ovary: cylin- brous, 5 to 7 veined, margins become MDL1803020 (January 20, 2018), CA- drical, grooved, 8 mm long by 1 mm involute as it ages. Petals: lyriform, HUP073560 in diameter. Column: squarish, 1.8 stout, with 3 long central appendag- mm long by 1.5 mm in diameter; ros- es about 5.8 to 6 mm long by 0.15 to PLANT DESCRIPTION tellum linear, 0.7 mm long by 0.3 mm 0.2 mm wide, and 2 short lateral ap- Growth habit: upright to semi-pen- wide. Stigma: oblong, about 1 mm in pendages about 0.45 to 0.5 mm long dulous, monopodial. Stems: up to 60 diameter. Anther Cap: ovate, concave, by 0.1 mm wide, spreading at the se- cm long by 1.3 cm wide, fl attened, to- acuminate at the apex, 0.7 mm long by pals, mobile. Labellum: panduriform, wards the apex. Leaves: sessile, up 1 mm in diameter. Pollinia: 2 unequal- 2.5 mm long by 1.2 mm wide, slightly to 25 cm long by 3.5 cm wide leath- ly paired, discoid, 0.4 mm in diameter; recurved, two basal rounded wings in ery, linear-lanceolate, and unequally stipe linear-lanceolate, 1.5 mm long by the basal half, abaxially grooved, lat- bilobed at the apex, blunt, occasion- 0.3 mm wide; viscidium oblong, 0.15 eral margins and median abaxial pap- ally minutely dentate, margins fl at- long by 0.25 wide. illose-papillate. Column: short, stout, tened to undulate, sparsely stellate bearing short triangular stelidia about 1.5 by 1.3 mm, column foot short c. 0.8 by 0.4 mm, mentum about 0.2 mm; an- Robiquetia micramphora ther cap panduriform, cucullate, 7.8 to 8 by 6.8 to 7 mm. Stigma: oblong, about 0.7 by 0.5 mm, concave. Pollin- ia: unequally paired, oblate-ovate, 6.9 to 7 by 3.8 to 4 mm.

Comparison: Epicrianthes neilkonradii is most similar to Epicr. aquinoi Coot- es, M.D. De Leon and Naive, but differs in surface structure of the labellum which in Epicr. neilkonradii is vesicular to papillose, whereas the labellum surface of Epicr. aquinoi is glabrous; the petal appendages of Epicr.

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Comparison: Robiquetia micrampho- Thrixspermum bellamabantae ra is most similar to Rob. compres- Benjamin Mabanta sa (Lindley) Schlechter, but they can be separated by characters of the spur, which in Rob. micramphora is almost straight and shorter (6 mm long); the spur of Rob. compressa is longer (1 cm long) and curves forward. The side lobes of Rob. micramphora are equilat- erally triangular (.7 mm high by .7 mm wide) with a rounded apex, whereas the side lobes of Rob. compressa are also triangular, they are much more prominent, and considerably larger (1.1 mm long by 1.1 mm wide).

Habitat and distribution: Robiquetia micramphora is found in the province of Bukidnon where it grows as an epiphyte, leaves, stem and roots are of- ten covered by moss of in cloud mossy rainforest at altitudes of 900 to 1,000 meters above sea level.

Etymology: The speciﬁ c epithet refers to the shape of the whole labellum including the spur which resembles a small jar or bottle.

Thrixspermum bellamabantaiae Ca- bactulan, Cootes and Pimentel sp. nov.

Section: Dendrocolla (Blume) J.J. Sm.

TYPE: PHILIPPINES, Mindanao, Bukid- non, at about 1,200 metres elevation above sea level. HOLOTYPE: MDL1803021 (March 3, 2018), CA- Thrixspermum bellamabantae HUP073561 Benjamin Mabanta PLANT DESCRIPTION Growth Habit: upright to semi-pendulous, monopodial, epiphyte. Stem: fl attened, glabrous, 3 mm wide. Leaves: lanceolate, 3 to 8 cm long by 1 to 1.6 cm wide; sessile, apex emarginated, cataphylls are 7 mm long by 3 mm wide, covering the stem. Infl o- rescence: cylindrical, upright, axillary, bearing at each internode succes- sive short-lived blooms, with up to 4 fl owers open on any one occasion; rachis up to 1.5 cm long by 4 mm in diameter; fl owers up to 18 mm across the lateral sepals. Bracts: fl oral bracts are aristate, whorled, stout, glabrous, 6 mm long by 0.50 mm wide; non-fl o- ral bracts three, triangular, about 0.50 mm long by 0.10 mm wide. Flower col-

19 OrchideenJournal Internet | Vol. 6 · 2 our: petals and sepals are white with Etymology: The specifi c epithet hon- Fernando Aurigue large prominent rounded red spots in- oursBella Mabanta, the mother of Philippine Nuclear Research Institute, teriorly except near the apex; labellum Benjamin Mabanta, in whose collec- Commonwealth Avenue is white with large prominent rounded tion the species was fi rst noted to be 1101 Diliman, Quezon City, red spots interiorly; midlobe is white. an undescribed species. Metro Manila, Philippines Peduncle: terete, erect, glabrous, 11.7 cm long by 1 mm in diameter. Pedi- Acknowledgments: Neil Konrad Binayao III cel and ovary: cylindrical, glabrous, The authors thank the Department #1442, Purok 5 Poblacion grooved, 7 mm long by 0.68 mm in di- of Environment and Natural Resourc- Manolo Fortich Bukidnon ameter. Dorsal Sepal: broadly ovate, es Region X for issuing a Wildlife Gra- 8703 7.5 mm long by 3 mm wide, glabrous, tuitous Permit (No. 2017-46, 21 De- concave, margins entire. Lateral Se- cember 2017) to Miguel David De Le- Derek Cabactulan pals: broadly ovate, 7.5 mm long by on, the City Environment and Natu- 48 Corrales and 1st Streets, Nazareth, 3.7 mm wide, glabrous, concave, mar- ral Resources Offi ce for inspecting the Cagayan de Oro City, gins entire. Petals: spathulate, 6.5 mm specimens for herbarium deposits (8 Misamis Oriental, Philippines 9000 long by 2.3 mm wide, glabrous, con- March 2018) and the Provincial Envi- cave, margins entire. Labellum: three ronment and Natural Resources Offi ce Jim Cootes lobed, saccate; side lobes are trian- (8 March 2018) for the issuance of the 7 Bronte Place, gular-ovate, upright, facing inwards, Local Transport Permit (Wildlife Trans- Woodbine, 4.5 mm long by 1 mm wide, dense- port Permit No. 011-2018, 8 March NSW 2210, ly pubescent, at the anterior margins; 2018). We are grateful to the Universi- Australia midlobe rounded, 2 mm long by 4 mm ty of the Philippines at Los Baños Mu- wide, densely pubescent at the apical seum of Natural History Botanical Her- Reynold Pimentel margins, paired rounded callus from barium (CAHUP) for accepting our hol- Del Monte-Philippines, Camp Phillips, the center of the base of the midlobe. otypes on 9. March 2018. Manolo Fortich, Bukidnon, Column: slightly fl attened, oblong, Philippines 2.3 mm long by 1 mm in diameter. Col- Our sincere thanks also go to Mark A. umn foot: rectangular, glabrous, 2 mm Clements (Australia), Henrik Æ. Ped- Miguel David De Leon long by 1.5 mm wide. Anther Cap: sub- ersen, and D Jaap J. Vermeulen (Neth- Department of Ophthalmology, cordate, cucullate, 1 mm in diameter. erlands) for their input into this paper. Cagayan De Oro Medical Centre, Stigma: oblong, 0.40 mm long by 0.20 Tiano corner Nacalaban Streets mm wide. Pollinia: oblong, unequally Cagayan de Oro City, paired, 0.7 mm long by 0.30 mm wide. Misamis Oriental, Philippines Infructescence: not seen.

Comparison: Thrixspermum bellamabantaiae is most similar to Thrix. pulchrum Carr, from Peninsular Ma- laysia and Borneo, but differs in the more angular side lobes of the labellum of Thrix. bellamabantaiae versus the rounded side lobes of Thrix. pulchrum; and the densely pubescent side lobes and mid lobe of the labellum of Thrix. bellamabantaiae, whereas the side lobes and mid lobe of the labellum of Thrix. pulchrum are much more sparsely pubescent. The trichomes of Thrix. bellamabantaiae are parallel for their whole length, whereas the trichomes of Thrix. pulchrum are club-shaped.

Habitat and distribution: Thrixsper- mum bellamabantaiae is so far, known only from the province of Bukidnon on the island of Mindanao. It grows as an epiphyte, clinging to branches covered with moss, at elevations of about 1,200 meters above sea level.

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References: Handoyo Frankie. 2010. Orchids of In- Seidenfaden G. 1992. The Orchids of donesia. Indonesian Orchid Society. Indochina. Opera Botanica 141. Agoo E.M.G., Schuiteman A., and de Handoyo Frankie and Ramadani Pra- Seidenfaden G. and Wood J.J. 1992. Vogel E.F. 2003. Flora Malesiana: Or- setya. 2014. Orchids of Sulawesi. In- The Orchids of Peninsular Malaysia chids of the Philippines Vol. 1 World donesian Orchid Society. and Singapore. Olsen and Olsen, Fre- Biodiversity Database CD-ROM Series. Lin Tsan-Piao. 1975. Native Orchids densborg. ETI/National Herbarium of the Nether- of Taiwan Vol. 1 - Southern Materials Shih-Wen Chung. 2008. Orchids of lands. Center, Taipei, R.O.C. Taiwan Vol. 1 ISBN 9789860133141 Ames O. 1905 to 1922. Studies in the Lin Tsan-Piao. 1987. Native Orchids and Orchids of Taiwan Vol. 2. ISBN Family Orchidaceae Fascicles I to VII. of Taiwan Vol. 2 - Southern Materials 9789860173819. (Reprint) Bishen Singh Mahendra Pal Center, Taipei, R.O.C. Smith J.J. 1984. (Reprint) Die Orchi- Singh, India. Lin Tsan-Piao. 1988. Native Orchids deen von Java. Figuren Atlas. Bishen Ames O. 1912. The Philippine Journal of Taiwan Vol. 3 - Southern Materials Singh Mahendra Pal Singh, India. of Science 7: 23. Center, Taipei, R.O.C. Valmayor H.L. 1984. Orchidiana Ames O. 1913. The Philippine Journal Lin Wei-Min & Wang Yi-Fu. 2014. The Philippiniana. Eugenio Lopez Founda- of Science 8: 419. Wild Orchids of Taiwan - An Illustrat- tion, Inc. Manila, Philippines. Ames O. 1922 to 1930. Schedulae Or- ed Guide. KBCC Press Pingtung Coun- Vermeulen J.J. & P. O’Byrne. 2011. chidianae Volumes 1 to 10 (Reprint) ty, Taiwan. Bulbophyllum of Sulawesi. Natural Bishen Singh Mahendra Pal Singh, In- Marven Nigel. Personal conversation History Publications (Borneo). dia. (MDL). Vermeulen J.J., P. O’Byrne, & A. Barretto G., et al. 2011. The Wild Or- Mcneely Jeffrey 2002. Journal for Na- Lamb. 2015. Bulbophyllum of Borneo. chids of Hong Kong. Natural History ture Conservation 10(3):145-153 Natural History Publications (Borneo). Publications (Borneo) Pedersen H. Æ. 1997. ‘The genus Den- Williams L.O. 1938b. Review of the Beaman T, et al. 2001. Orchids of drochilum (Orchidaceae) In the Philip- Genus Thrixspermum in the Philippine Sarawak. Natural History Publications pines, - a taxonomic revision’. Opera Islands. Botanical Museum Leaﬂ ets, (Borneo). Botanica 131. Harvard University 6, 5: 77-95. Chan C., Lamb A., Shim P., Wood J.J. Pelser, P.B., J.F. Barcelona & D.L. Nick- Wood J.J. 2008. New Orchids from 1994. Orchids of Borneo Vol. 1. - The rent (eds). 2011 onwards. Co’s Digital Borneo. Malesian Orchid Journal Vol. Sabah Society, Kota Kinabalu, Sabah, Flora of the Philippines. www.philip- 1. Malaysia. pineplants.org Wood J.J., Beaman T.E., Lamb A., Chen Singchi, Liu Z.J., Luo Y.B., Jin Raulerson L. and Rinehart A. 1992. Chan C.L., and Beaman J.H. 2011. The X.H., & Tsi Z.H. 2009. A Field Guide to Ferns and Orchids of the Mariana Is- Orchids of Mount Kinabalu. Two Vol- the Orchids of China. lands. umes. Natural History Publications Comber J.B. 1990. Orchids of Java. Schlechter R. 1982. The Orchidaceae (Borneo) Kota Kinabalu. Royal Botanic Gardens, Kew. of German New Guinea (English Trans- Wu Z.-G., Raven P. and Hong D.Y. Comber J.B. 2001. Orchids of Suma- lation) - The Australian Orchid Founda- (eds.) 2009. Flora of China 25. Science tra. Natural History Publications (Bor- tion, Melbourne. Press, Beijing & Missouri BG Press, St. neo). Schlechter R. 1911. Zur Kenntnis der Louis. Cootes J. 2011. Philippine Native Or- Orchidaceen von Celebes. Repertori- Zhihui Xu, Hong Jiang, Deping Ye, & chid Species. Katha Publishing Co. um Specierum Novarum Regni Veget- Ende Liu. 2010. The Wild Orchids in Inc. 388 Quezon Ave, Quezon City, abilis. Yunnan. Yunnan Publishing Group Cor- Philippines. poration & Yunnan Science and Tech- nology Press.