T. B. CROAT, J. S. L. cRA VEZ, 2005 69 Rediscovery of Rare Species of Anthurium (Araceae) from

Thomas B. Croat Missouri Botanical Garden P.o. Box 299 St. Louis, MO 63166 [email protected] Jorge S. Ungan Chavez Museo de Historla Natural Javier Prado Dpto. de Gimnospermas y Monocotlled6neas Av. Arenales 1256 JesUs Maria Apartado 14-0434 Lima, Peru. [email protected]

ABSTRACT Descriptions were prepared based on the standard published by Croat and Bun­ In this paper five rare species of An­ ting (1979). thurium are redescribed: A. consimile Schott, A. corallinum Poepp. et End!., A. gracilipedunculatum Krause, A. huanu­ Anthurium consimile Schott, Oesterr. cense Engler, and A. peltatum Poepp. Bot. Wochenbl. 7: 294. 1857. Type: PERU. Cuchero, July 1829, Poeppig RESUMEN 1083 (lectotype, WO. Figures 1-4. Se redescriben cinco especies raras de Terrestrial and epipetric; stem terete, Anthurium: A. consimile Schott, A. coral­ grayish brown; internodes short, 1.3-35 !inum Poepp. et Endl., A. gracilipedun­ cm long, 2-35 cm diam.; catapbyIIs per­ culatum Krause, A. huanucense Engler, y sisting intact at upper nodes, 4.4-11.2 cm A. peltatum Poepp. long, 1-2-ribbed, triangular, dark brown to reddish brown, coriaceous. LEAVES erect KEYWORDS to spreading; petioles 33-96 cm long, 0.5-1.2 cm diam., terete to obtusely and Araceae, Anthurium, Peru, A. consimile, narrowly sulcate; medium green, some­ A. corallinum, A. gracilipedunculatum, A. times tinged reddish toward base, semi­ huanucense, A. peltatum. glossy, unmarked; sheath 5.6 cm long; ge­ niculum 1.7-2.6 cm long; blades subcori­ INTRODUCTION aceous, semiglossy, moderately bicolo­ The Araceae of Peru are poorly known rous, 42.8-62.8 cm long, 29.9-42.8 cm despite the publication of the family for wide, wider to middle, widely ovate, acu­ the Catalogue of the Flowering Plants and minate at apex, deeply cordate at base; Gymnosperms of Peru (Croat, 1993). This posterior lobes oblong-rounded, conver­ lack of knowledge is exemplified by low gent to sometimes overlapping, 5.4-10 cm numbers of herbarium specimens that do long, sinus spathulate to hippocrepiform; not reflect the real importance of this fam­ dark green and semiglossy to matte above, ily to the composition of the Peruvian flo­ moderately paler to semiglossy below; ra. Croat (1999) proposes that the total midrib moderately acute, bluntly acute to number of Araceae for Peru will come acute and slightly paler above, narrowly close to 300 species or perhaps more. rounded to acute and paler below; prl- 70 AROIDEANA, Vol. 28

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" " ,.:.. :: .... , . T. B. CROAT, J. S. L. CHAVEZ, 2005 71 mary lateral veins (6-)8-10 per side, Second World War because most of the strongly recurvate-ascending, bluntly rest of the Araceae collection was de­ acute and concolorous on both surfaces, stroyed by war action but these specimens departing midrib at 40-45° angles, tertiary are extant. The lectotype specimen con­ veins in part raised, reticulate veins not sists of only a leaf blade (without petiole) visible; basal veins 5-7 pairs, joining the and an inflorescence with a piece of the 1st to 3rd basal rib; basal rib 3.1-3.3 cm peduncle, and the second consists of a long, straight to recurved, naked 1.7-1.9 smaller leaf and two inflorescences. The cm; collective veins restricted to apex or second specimen at W was also illustrated above the middle, 1-5 mm from the mar­ by Schott (Jcones #626), but prepared in gin. INFLORESCENCE erect; peduncle September 1829, whereas the type (Schott 11.5-33 cm long, 0.4-0.6 cm diam., terete, Jeones #627) was prepared in July 1829. much shorter than the petioles; spathe The type specimen of A. consimile was subcoriaceous, green, persisting on fruit­ initially identified as A. humboldtianum ing, erect to spreading, 7.4-17.3 cm long, Kunth, a species actually known only from 1-3.4 cm wide, oblong-lanceolate, acute to Colombia and Venezuela. The locality cit­ brevi-acuminate to apex, subcordate to ed on the label is "Peruvia subandina. Su­ base; spadix slightly tapered to apex, pra terram-illegible-ad Cuchero", it 10.2-17.5 cm long, 0.5-0.8(-1.2) cm wide corresponds to San Juan de Cochero, lo­ near to base, 0.3-0.8 cm wide near to cated in the Huanuco Department at the apex, dark purplish; stipe green, 0.7 cm coordinates 9°30"S, 75°51"W. This area is long in front, sessile to 0.2 cm long in near to other known collecting localities of back; flowers square, sides straight to Poeppig, such as Pompayacu. slightly sigmoid, ca. 2 X 2 mm; 8 flowers Anthunum consimile is a member of visible in the principal spiral, 6 flowers vis­ section Calomystnum, and ranges from ible in the alternate spiral; tepals smooth, 700-1,000 m in elevation, occurring in the unmarked (minutely papillate on magnifi­ Tropical Lower Montane moist forest cation); lateral tepals 3-sided, 1.3 cm wide, (TLM-mf) and Tropical Lower Montane inner margins convex; pistils ca. 2 mm wet forest (TLM-wf) life zones. long, oblong; stigmas rounded; stamens This species is endemic to Peru and has ca. 1.5 mm long; anthers 0.7 mm wide, been collected in the Departments of emerging just above the margins of the te­ Huanuco, Junfn, Pasco and San Martin. pals and remaining in a contiguous cluster, covering the stigmas; thecae slightly divar­ Additional specimens examined-PERU. icate; pollen drying yellow-brown. IN­ Junin: Along rd. between San Ram6n and FRUCTESCENCE erect; spadix 10.2-23.3 , 6 km beyond turn off for rd. to cm long, 1.2 cm wide; berries 0.5 cm, Satipo, 100 53'30"S, 75°18'OO"W, 700 m, 1 ovate with the upper part protruding. Apr. 1984, Croat 57736 (MO); Tarma, It was necessary to lectotypify the spe­ 10°58' 23"S, 75°19'05"W, 750 m, 8 June cies owing to the fact that Schott did not 1998, Croat & Sizemore 81919 (MO, USM); sufficiently define the collection in his Satipo, 11°lO'30"S, 74°39' 32"W, 1,000 m, 8 original description. There are two existing June 1998, Croat & Sizemore 82000 (MO, collections in the Vienna herbarium (W). USM); La Merced, 700 m, 29 May-4 June These may have been on loan during the 1929, Killip & Smith 24071 (NY, US). Pas-

Figs. 1-4. Anthurium consimile Schott. -1 (top L). (Lingan et al. 591). Habit. -2 (top R). (Croat & Sizemore 82000). Leaf. -3 (bottom L). (Lingan et al. 591). Stem and cat­ aphylls. -4 (bottom R). (Poeppig 1083). Type specimen, note the sessile spadix and leaf with few primary lateral veins. 72 AROIDEANA, Vol. 28 co: , Oxapampa Dis­ rete, greenish, 0.7-0.8 times longer than trict, Oxapampa-Puente Paucartambo, the petiole; spathe chartaceous, green, 100 50'20"S, 75°17'37"W, 770 m, 12 June persistent, spreading sometimes recurved, 2003, Lingan et al. 591 (HOXA, MO). San 9.8--14.8 cm long, 1.5-2.8 cm wide, ob­ Martin: Mariscal Caceres, Dtto. Tocache long, acuminate to apex, cordate to base; Nuevo, 550-700 m, 12 Aug. 1980, Schunke spadix tapered, 10.4-13.4 cm long, 0.6- 12134 (MO). 0.8 cm wide next to base, 0.4-0.5 cm long next to apex, greenish or yellow to dull Anthurium coraUinum Poeppig & End!., red or reddish orange; flowers 4-lobed, Nov. Gen. Sp. PI. 3: 84. 1845. Type: sides sigmoid, 2 X 2 mm, 6-7 flowers vis­ PERU. San Cristobal, Cuchero, Feb. ible in the principal spiral, 5-6 flowers vis­ 1830, Poeppig 1723 (holotype, W not ible in the alternate spiral; tepals purple, seen, phototypes, MO, F). Figures 5-8. matte, 3-6-sided, inner margin convex; pistils ca. 2 mm, emerging only after an­ Epiphytic; roots few per node, whitish thesis; filaments flattened, slightly convex; to yellowish green, 2-4 mm wide, spread­ anthers rounding the stigmas at anthesis; ing to descending; stem terete, yellowish thecae slightly divaricate; pollen whitish. green, smooth; internodes short, 0.6-1 INFRUCTESCENCE not seen; immature in­ cm long, 1 cm diam., covered by the cat­ fructescence orange (fide Vdsquez 22563); aphylls; cataphylls 4.2-15.3 cm long, up mature berries said to be orange (fide to 2-ribbed, lanceolate, green to reddish Schunke 5034). brown or dark brown, persistent entire, Anthurium corallinum is known from a coriaceous. LEAVES erect to spreading; photograph of the type, and from Schott petioles 15.2-48.3 cm long, 0.3-0.6 cm drawing #618 (Nicolson, 1984). The type wide, terete, green; sheath 2.1-11 cm long; was destroyed during the Second World geniculum 1.9-3.4 cm long, greenish; War. blades subcoriaceous, 19.5-42.6 cm long, This species appears to have variations 8.9-19.3 cm wide, wider to the middle, in the color of the inflorescences: Schunke ovate-cordate, acuminate at apex, deeply 5034 "strong greenish yellow", Foster et cordate to base, margins convex, posterior al. 10925 "dull red", Schunke 13707 lobes oblong to rounded, 2.9-9.4 cm long; "moderately yellowish pink", Foster 12177 sinus triangular; glossy, dark green above, "reddish orange", Lingan 669 "violet pur­ lower surface much paler; midrib raised ple". and more conspicuous above; primary Anthurium corallinum ranges from lateral veins moderately obscure both 500-1,400 m in elevation and is reported surfaces, 10-15 per side, straight, depart­ from the Departments of Amazonas, ing midrib at 40-60° angles; tertiary veins Hminuco, Madre de Dios, Pasco, and San obscure beneath; basal veins 3-4 pairs, Martin. This epiphytic species occurs in free to base, convex above; collective the Tropical Lower Montane wet forest veins 2-3, arising from 2nd and 3rd (4th) (TLM-wD life zone and is a member of basal vein, subparallel, the first 0-2 mm section Calomystrium. from the margin, the second 3-7 mm from the margin, the third 1.2-2.9 cm from the Additional specimens examined­ margin. INFLORESCENCE erect; peduncle PERU. Amazonas: Poeppig 1723 (F, MO); 10.7-34.7 cm long, 0.5-0.6 cm wide, te- Condorcanqui Province, EI Cenepa Dis-

Figs. 5-8. Anthurium corallinum Poep. & End!. -5 (top L). Leaves. Cultivated at Ecua­ genera, Inc., Gualaceo (Ecuador). Origin Tingo Maria, Peru. --6 (top R). CLingan et al. 669). Leaf. -7 Cbottom L). CLingan et al. 669). Cataphylls, persisting entire. -8 (bottom R). CSchunke-Vigo 13707). Herbarium specimen. T B. CROAT, J S. L. CHAVEZ, 2005 73

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trict, Mamayaque community, Cerro Sak­ internodes 2-6.8 cm long, short internodes ee-gaig, 4°34'58"S, 78°14'01"W, 1,010 m, 1.2-4.1 cm long, 4-6 mm diam.; cata­ 14 Feb. 1997, Vasquez et al. 22563 (MO). phylls 1.5-6.8 cm long, sometimes 1- Hminuco: Leoncio Prado Province, Rupa ribbed, triangular-lanceolate, reddish Rupa District, 750-800 m, 5 July 1978, brown to grayish brown, persistent almost Plowman & Ramirez 7567 (F); 9°17'S, entire, papyraceous. LEAVES erect to 76°05'W, 650 m, 2 June 1998, Croat & Siz­ spreading; petioles 3.9-15.5 cm long, 0.1- emore 81612 (MO, USM); Jacintillo on left 0.2 cm diam., terete, green; sheath 1-3.2 bank of Rfo Monzon, W of Tingo Marfa, cm long; geniculum 3-16 mm long, light 750 m, 16 Apr. 1976, Plowman 5900B green to reddish; blades subcoriaceous, (GH). Madre de Dios: Cerro de Pantia­ 7.2-22.2 cm long, 1.2-8.5 cm wide, wider colla, Rio Palotoa, 10-15 km NNW of Shin­ in the lower half, Ian ceolate to ovate-ob­ tuya, transect to ridgetop, 12°35'S, long, acuminate to acute at apex, acumen 71°18'W, 700-1,300 m, 16 Dec. 1985, Fos­ 1.2-1.5 cm long, obtuse to subcordate at ter et al. 10925 (MO). Pasco: Oxapampa base; matte or semiglossy in both surfaces, Province, Villa Rica District, Sector Union­ adaxially darker than the abaxial face; Shimaki, Bosque de Proteccion San Ma­ midrib adaxially convex, acute abaxially; tias-San Carlos, 10°43' 58"S, 74°54' 23"W, primary lateral veins 5-9(12) per side, 1400 m, 4 July 2003, Lingan 669 (MO, departing at 40-50° angles, straight to HOXA, USM). San Martin: Mariscal Ca­ lightly arcuate-ascending, sunken above ceres Province, Campanilla District, 7°43'S, and raised below; basal veins frequently 76°40'W, 900-950 m, 21 Dec. 1981, Plow­ 2 per side; collective veins arising at the man et al. 11635 (F); Plowman et al. upper basal vein, 2-14 mm from the mar­ 11640 (F); Tocache District, Rio de la Pla­ gins. INFLORESCENCE erect; peduncle ta, Gran Fundo La Bella Durmiente Ma­ 16.1-24.7 cm long, 0.1-0.3 cm wide, or­ nuel Gatia ca. 5 km NE of bridge over Rfo ange, 1.6-4.1 times longer than the peti­ Huallaga, 8°08'S, 76°23'W, 100 m, 7 Apr. ole; spathe membranaceous, greenish 1984, Croat 57991A (MO); Tocache Nue­ turning purple at anthesis, persistent, vo District, 6 Oct. 1971, Schunke-Vigo spreading, 3.2-6.2 cm long, 0.7-1 cm 5034 (F, MO, NY, US); 500-700 m, 12 Nov. wide, oblong-lanceolate, cordate at base; 1975, Schunke-Vigo 8676A (CM, MO); Rio spadix cylindric, 2.8-7.5 long, 0.2-0.4 cm de la Plata, 8°1O'S, 76°25'W, 550-650 m, 2 wide, dark purple to orangish red; stipe Nov. 1980, Croat 51040 (MO); Quebrada reddish or greenish to orange, sometimes Mantencion, cerca de Tocache, 700 m, 8 purplish, 1.5-6.9 cm long; flowers square June 1982, Schunke-Vigo 13707 (lBE); to 4-10bate with margins sigmoid to lightly Provo Mariscal Caceres, Dtto. Tocache straight, 3 X 3 mm; 3-4 flowers visible in Nuevo, Rfo de la Plata, Fundo del Sr Ma­ the principal spiral, 5-7 flowers visible in nuel Gatica, 550-700 m, 18 Aug. 1980, the alternate spiral; tepals 4-5-sided, inner Schunke-Vigo 12177 (IBE). margins strongly convex; pistils ca. 1 mm long; stigmas oblong-rounded; stamens ca. Anthurium gracilipedunculatum Krause, 1.5 mm long (at anthesis); filaments flat­ Publ. Field Mus. Nat. Hist. Bot. Ser. 8: tened, lightly concave in the inner face; 78. 1930. Type: PERU. Huanuco, Yan­ anthers exerted above the tepa Is at anthe­ ano, 1,800 m, 13-16 May 1923, Mac­ sis; thecae not divaricate. INFRUCTES­ bride 3734 (BO. Figures 9-11. CENCE erect; spadix 8.1 cm long, 0.9 cm diam., reddish orange; berries obovate Hemiepiphytic to terrestrial, sometimes with stigmas exerted, 5 mm long; seeds 2, on rocky soil; few roots per node, 1 mm oblong with irregular margins. wide, light brown to grayish, spreading to Anthurium gracilipedunculatum rang­ descending; stem terete, greenish to red­ es from 2,000 to 2,600 m in elevation in dish brown or deeply brown, smooth; in­ Tropical Lower Montane moist forest ternodes long and short alternating, long (TLM-mf) and Tropical Lower Montane T. B. CROAT, J. S. 1. CHAVEZ, 2005 75 wet forest (TIM-wf) life zones. The species Type: PERU. Hminuco, Huamalies is known from the Departments of Caja­ Province, near Monz6n, 900-1,000 m, marca, Hminuco and Pasco. The species is 27 July 1903, Weberbauer 3449 (ho­ a caespitose terrestrial to shortly scandent lotype, BO. Figure 12. hemiepiphyte species that grows princi­ pally in shady and humid areas. Description based on dry material. Epi­ Anthurium gracilipedunculatum is a phyte; roots 0.1--0.5 cm wide, whitish to member of section Xialophyllium, series brown, spreading to descending; stem Caucanum, and is characterized by its subterete, drying grayish, covered by the reddish, largely stipitate spadix, brown in­ cataphylls; internodes short, 0.4--0.6 cm ternodes, and persistent cataphylls. long, 0.6-1 cm diam.; cataphylls (1-)5.8- Anthurium gracilipedunculatum is eas­ 7.1 cm long, 2-ribbed, triangular lanceo­ ily confused with A. pulchellum Engl., a late, acute at apex, reddish brown to gray­ species known only from Colombia, ish brown, membranous. LEAVES erect to which also has a long stipitate spadix. spreading; petioles 4.1-10.4 cm long, 0.1- However, A. pulchellum differs from A. 0.3 cm wide, U-shaped, narrowly sulcate, gracilipedunculatum by its erect spathe, green; sheath 1.7-3.8 cm long; geniculum green to greenish yellow spadix, and 0.4--0.9 cm long; blades subcoriaceous, smaller and elliptic leaves with primary lat­ 14.7-39.6 cm long, 2.6-7.9 cm wide, wider eral veins departing midrib at broader an­ above the middle, elliptic-oblanceolate to gles. narrowly elliptic; acute at apex, acute to shortly attenuate at base; almost concolo­ Additional specimens examined­ rous on both surfaces, lightly darker PERU. Cajamarca: Cutervo Province, above, adaxially semiglossy, matte below; Parque Nacional Cutervo, 2,300-2,400 m, midrib narrowly convex above, convex 11 Jan. 1990, Dfaz et al. 3938 (MO); Jaen below; primary lateral veins numerous, Province, 2,500 m, 9 Nov. 1999, Dfaz & (9-)18-24 per side, distinct from the inter­ Campos 10925 (CAS, F, MO, NY, USM); primary veins, straight to the collective 2,370 m, 6 Nov. 1999, Dfaz & Campos veins, departing midrib at 35-40(-70°) an­ 10868 (MO, QCNE, UB, USM, US); San Ig­ gles; collective veins arising at base, 0.1- nacio Province, 5°18'30"S, 78°44'Ol"W, 0.5 cm from the margins. INFLORES­ 1,500-1,600 m, 19 July 1997, Campos & CENCE erect to spreading; peduncle Nunez 4194 (MO, NY). Pasco: Oxapampa 24.8-42.8 cm long, (0.1-)0.3--0.4 wide, Province, , Parque Na­ green, terete, 4.8-6.9 times longer than the cional Yanachaga-Chemillen, Refugio el petioles; spathe subcoriaceous, green, Cedro, 100 32'S, 75°21'W, 2,440-2,500 m, persisting on fruit, reflexed, (1.6-)4.8-5.1 17 Aug. 2002, Monteagudo et al. 3670 cm long, (0.4-)0.5--0.7 cm wide, linear-ob­ (HOXA, HUT, MO); 2,430 m, 21 Nov. long, acute to apex, rounded to base; spa­ 2002, Monteagudo et al. 4356 (HOXA, dix cylindric, sessile, 1.1-10.1 cm long, HUT, MO); camino del refugio al Abra La 0.4--0.5 cm wide, green to reddish; flowers Esperanza, 10°32'5, 75°21'W, 2,490-2,610 rhombic to 4-lobed, sides sigmoid, 3 X 3 m, 22 Nov. 2002, Monteagudo et al. 4404 mm; 2-3 flowers visible in the principal (HOXA, HUT, MO); camino al Abra Esper­ spiral, 3-5 flowers visible in the alternate anza, 100 33'46"S, 75°22'93''W, 2,600 m, 13 spiral; tepals 3-sided, lateral tepals with in­ Mar. 2003, Lingan et al. 341 (AMAZ, ner margins straight to slightly convex; HOXA, HUT, MO, MOL, USM); Chacos, pistils ovate-elliptic; stamens 0.1 cm long; carretera a la Antena, 100 37'23"S, filaments flattened; anthers surrounding 75°20'16''W, 2,050 m, 21 Sep. 2003, Lingan the stigmas at anthesis; thecae not divari­ et al. 688 (HOXA, MO, USM). cate. INFRUCTESCENCE erect; spadix 15.1 cm long, 0.5 cm wide, green; berries Anthurium huanucense Engler, Pflan­ spherical, 3 X 3 mm; seeds 2, ovoid-ellip­ zenr. IV. 23 B (Heft 23): 165. 1905. tic, 0.2 X 0.1 cm. 76 AHOIDEANA, Vol. 28

G J

H ~ lmm \J12m111 E

1 111m

D B

4cm

1 mm 9 Fig. 9. Anthurium gntciltpedunculatum Krause. A. Habit. B. Leaves, va ri ability in size and venatio n. C. Pe ti ole, cross secti on. D. Inflorescence, conspicuo usly stipitate. E. Pistil. F. Stamen, anteri o r view. G. Stamen, posterio r view. H. Fruit, note ri bs on surface. ]. Seed . Drawings by Jorge Linga n. T. B. CROAT, J. S. L. CI-rAVEZ, 2005 77

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Figs. 10-12. -10, -11. Anthurium g racilipedunculatum Kra use (Lingan el al. 341). - 10 (rop) . Habit. -11 (botto m L). Inflo rescence conspicuo usly stipitate. -12. Anthurium huanucense Engler (bottom R). (Weherhauer 3449). Type specimen. 78 AROIDEANA, Vol. 28

The information about the color of in­ type, MO-4992465; isoepitypes, B, K, florescences and infructescences are insuf­ SEL, US, USM). Figures 13-16. ficient and more collections with adequate data of collection are necessary. Schunke's Terrestrial; roots reddish brown to gray­ voucher (Schunke 8590) has no data of ish, 1-2 per node, descending; stem 26- spathe and spadix color, the information 100 em long, terete; internodes short, from his field book is lost. Engler(1905) 0.3-0.7 em long, up to 5 em diam.; cata­ describes tepal color as reddish, white pbylls 4.1-16.3 em long, bluntly I-ribbed, punctate: "Tepala [. ..J rubescentia, albo­ .1anceolate, acute to obtuse at apex, pale punctatd'. green to dark brown, deciduous or per­ Engler also placed A. huanucense in sisting semi-intact then deciduous, coria­ section Urospadix, subsection Flavescen­ ceous. LEAVES erect; petioles 35.9-98.6 tiviridia, but he makes mention that it is em long, 0.4-0.8 em wide, terete to ob­ an intermediate between this section and tusely sulcate .adaxialIy, green, sometimes section Leptanthurium: "Nota. Planta sin­ reddish; sheath approximately 5 em long; gularis, inter Leptanthuria atque species geniculum 0.9-2.5 em long; blades coria­ section is Urospadix habitu et characteri­ ceous tosubcoriaceous, 27.5-66 em long, (26-) 30.4--49.6 em wide, wider immedi­ bus intermedia". ately below the middle, ovate, generally This species is known from Monzon and peltate, shortly acuminate to apex, obtuse Tingo Marfa (Hminuco and San Martin De­ . to deeply cordate to base, dark green, se­ partments) and Chanchamayo Valley 0u­ miglossy above, much paler and weakly nin Department), ranging from 900-1,000 glossy below; midrib slightly paler and m in elevation. narrowly convex above the base, bluntly Additional specimens examined­ . acute toward apex,. narrowly convex and paler below; posterior lobes oblong, con­ PERU. Huanuco: On 60° rocky slope at vergent, 6-21.5 em long, generally fused; Rio Huallaga at Tingo Marfa, 4 Oct. 1972, sinus absent to narrowly spathulate;pri­ Croat 21068 (MO). Junin: Chanchamayo mary lateral veins (4-)6-8 (-10) per Valley, 1,500 m, Schunke-Vigo 890, Sep. side, convex in both surfaces, departing at 1929 (MO). San Martin: Mariscal Caceres 40-50° from the midrib, slightly recurved; Province, Tocache District, vic. Tocache basal veins 5-7 pairs, narrow raised and Nuevo, 400-700 m, 25 May 1975, Schunke­ concolorous above, weakly raised in part Vigo 8590 (MO). below, the . 1st, 2nd and sometimes 3rd free to base, the (3rd) 4th-6th (-7th) coa­ Anthurium peltatum Poeppig, Nov. Gen. lesced;posterior rib 0.5-5 em long, Sp. Pl. 3: 83, t. 294. 1845. Type: PERU. straight, sometimes strongly retrorse ; col­ Huanuco, vic. San Cristobal in the di­ lective veins restricted to apical third, aris­ rection of Cuchero, Poeppig's illustra­ ing from the first basal veins or 2nd-3rd tion # 294 serves as the type, how­ primary lateral veins, 1-'-9 mm to margin. ever, owing to the inaccuracy in the INFLORESCENCE erect; peduncle (29.3-) drawing an epitype is being created. 32-61.5 em long, 0.3-1.2 em diam., 0.6- Epitype: PERU. Huanuco: Leoncio 0.9 .times as long as the petiole; spathe Prado Province: Fondo Mariamilla, subcoriaceous, green, persisting, spread­ Distr. Emilo Valdizana, on old road to ing, 9.5-21.7 long, 1.0-3.9 em wide; lan­ La Divisora, 1,380 m. Originally col­ ceolate to linear-lanceolate, acute at apex, lected by T. Plowman (#5911). Culti­ acute to base; spadix tapered, 11-19.9 em vated at Selby Gardens (76-0072-005), long, 0.3-1 em near to base, (0.2-)0.4 em Waimea Arboretum (77p665) and wide near to apex, greenish purple to cop­ Lyon Arboretum; Epitype prepared pery brown; stipe 0.2-2.6 em long in front, from living plant at Selby Garden, 23 0.2-0.5 em in back; flowers 4-lobed, sig­ Aug., 1993, Croat 75855 (holoepi- moid sides, 2.6-2.8 X 2.5-2.7 mm, 5-9 T 13. CROAT, J S. L. CHAVEZ , 2005 79

Figs. 13-16. Anthuriwn p eltatwn Poeppig. (Plowman 5911). Li ving collectio n at Waim ea Arbo retum. -13 (top L) . H abit in cultivation. -14 (to p R) . Lea f. -15 (bottom L). Stem. Ph oto by Petra Malesevich . -16 (bottom R). InAo rescence. 80 AROIDEANA, Vol. 28 flowers visible in the principal spiral, 4-11 azita, Wawiko, 4°56'07"S, 78°12'11''W, 400 flowers visible in the alternate spiral; te­ m, 21 Nov. 1996, Alban et al. 9281 (MO). pals glossy, yellow to yellowish brown, Hwinuco: 1,000 m, 30 June 1977, Solo­ the lateral 3-sided, the inner margins con­ mon 3349 (MO); Leoncio Prado Province, vex, the anterior and posterior 3-5-sided, Emilio Valdizan, 1,380 m, 16 Apr. 1976, the inner margins straight; pistils ca. 1.5 Plowman 5911 (GH, USM); Leoncio Prado mm long; stigmas rounded; stamens 2 mm Province, 1380 m, 5 Sep. 1993, Croat long, exerted at anthesis; filaments flat­ 75855 (MO); 1,180 m, 23 June 1992, In­ tened; anthers surrounding the stigma at gram 1443 (SEL). San Martin: Tocache anthesis; thecae slightly divaricate. IN­ Nuevo-Juanjuf, ca. 96 km N de Tocache FRUCTESCENCE erect; spadix greenish; Nuevo, 1.4 km beyond bridge over Rio berries spherical with protruding stigma. Pulcache, 7°41'S, 76°40'W, 600 m, 8 Apr. Anthurium peltatum sites range from 1984, Croat 58027 (MO). Ucayali: Coro­ 400-1400 m in elevation. This endemic nel Portillo Province, Cordillera Azul, 700 species is known from the Departments of m, 5 June 1981, Young & Sullivan 727 Amazonas, Hminuco, San Martin and Uca­ (MO). yali. The species was for many years known ACKNOWLEDGMENTS only from the original illustration by Poep­ This paper was supported by a grant pig (drawing #294), and was recollected in from The Christensen Foundation. The au­ 1923 by J. F. Macbride, but that collection, thors would like to thank Emily Yates determined incorrectly as A. lutescens (MO) for editing the manuscript, and pre­ Engl., remained uncorrected until recently. paring figure plates. The original illustration by Poeppig does not depict the species well (the inflores­ UTERATURE CITED cence looks more like Homalomena) and an epitype is required to better define the Croat, T. & G. Bunting. 1979. Standardi­ species. Therefore, Croat 75855 is cited as zation of Anthurium descriptions. the epitype. This collection is reasonably Aroideana 2: 15-25. widespread (B, K, SEL, US, USM), but Croat, T. B. 1993. Araceae. pp. 71-82. In: more importantly it is represented by liv­ Catalogue of the Flowering Plants and ing material in several botanical gardens Gyanosperms of Peru. 1. Brako & T. including Selby Botanical Garden, Saraso­ 1. Zarucchi (eds.) Monogr. Syst. Bot., ta, Florida, the Waimea Arboretum and Missouri Bot. Gard. 45. Lyon Arboretum, both located on the is­ ---. 1999. The Araceae of Peru-dis­ land of Oahu in the Hawaiian Islands. tribution, species diversity and cen­ The species is placed in section Cardi­ ters of endemism. Arnaldoa 6(2):45- olonchium, and is one of the few species 79. of Anthurium with peltate leaves. It is Engler, A. 1905. Araceae-Pothoideae, pp. characterized by its terrestrial habit and 1-330 In W. Engel Mann (ed.), Das purplish spadix. Pjlanzenreich IV 23B (Heft 21). Leip­ zig and Berlin. Additional specimens examined­ Nicolson, D. H. 1984. Alphabetical index PERU. 1,060 m, 19-25 July 1923, Macbride to Schott's leones Aroideae and Reliq­ 5084 (F). Amazonas: Bagua Province, Im- uiae. IDC AG, Zug, Switzerland.