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A New Cylindrolobus (Orchidaceae) Species from Bukidnon, Mindanao, Philippines

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A New Cylindrolobus (Orchidaceae) Species from Bukidnon, Mindanao, Philippines OrchideenJournal Publisher: V.D.O.F. Vol. 4 · 5 Vereinigung Deutscher Orchideenfreunde e.V. 2016 Cylindrolobus datuguinai Naive, M.D. De Leon & Buenavista Contents: OA New Cylindrolobus (Orchidaceae) Page 1 – 5 Species from Bukidnon, ISSN-Internet 2195-772X Mindanao, Philippines September 12th 2016 OrchideenJournal Internet | Vol. 4 · 5 A New Cylindrolobus (Orchidaceae) page 3 Species from Bukidnon, Mindanao, Philippines Mark Arcebal Naive, Miguel David De Leon & Dave Buenavista Summary: A new species of Cylindrolobus is described as Clinydrolobus datiguinai Keywords: Orchidaceae; Cylindrolobus datuguinai; new species; Philippines; Bukidnon Published by: VDOF e.V. Mittelcarthausen 2 58553 Halver Germany email: [email protected] Editor in chief: Roland Schettler Date of Publication: September 12th 2016, 21:00 CEST 2 Internet | Vol. 4 · 5 OrchideenJournal A New Cylindrolobus (Orchidaceae) Species from Bukidnon, Mark Arcebal Naive, Miguel David de Leon & Mindanao, Philippines Dave Buenavista Abstract: A new Cylindrolobus spe- which warrant exploration, because species which are distributed in India, cies from northern Mindanao was the possibility of fi nding species, new Sri Lanka, Thailand, Peninsular Malay- found in the ancestral domain of to science, are relatively high. sia, Philippines, throughout Indone- the Talaandig tribe of Bukidnon, on One never ceases to be amazed at sia and Borneo. The Philippines has Mindanao. A search of the relevant the continuous parade of previous- at least eight species, all of which ap- literature for the Philippines and its ly undescribed species being found pear to be endemic. neighboring countries was conduct- in northern Mindanao. We have here ed and no matching species could the eighth species from the genus Cy- Cylindrolobus datuguinai Naive, be found. We take this opportunity lindrolobus (Blume) Brieger, found M.D. De Leon & Buenavista sp. nov. to name this species as Cylindrolo- on one of the mountains of Bukidnon bus datuguinai Naive, M.D. De Leon province. Type: Phillipines: Mindanao, Bukid- & Buenavista. The genus Cylindrolobus was origi- non, Kalatungan Mountain Range, nally proposed by Dr. Carl Blume as epiphyte on a lower tree trunk in Keywords: Orchidaceae; Cylindrolo- a section of Eria in 1825. In the year montane forest with closed canopy, bus datuguinai; new species; Philip- 1981, Friedrich G. Brieger raised the alt. 1,778 metres, June 5, 2016. MDL pines; Bukidnon. section to generic level in the German 022/2016 periodical Orchideen. The type spe- (Holotype: CMU00010813) Introduction cies for this genus is Cylindrolobus It is quite amazing that Mindanao, the compressus (Blume) Brieger. Gener- Plant Description second largest island in the Philip- ic epithet refers to the shape of the la- Growth habit: upright, sympodial, pine archipelago, is still relatively un- bellum (Cootes, 2011). epiphyte on lower tree trunk. Stem: explored botanically. There are a num- Members of the genus Cylindrolobus terete, over 1.5 m long by 1 to 1.2 cm in ber of high mountains on Mindanao, are represented by approximately 35 diameter. Leaves: leathery, distichous, Cylindrolobus datuguinai Naive, M.D. De Leon & Buenavista 3 OrchideenJournal Internet | Vol. 4 · 5 narrowly lanceolate, 15 to 21 cm long Cylindrolobus datuguinai by 4 to 5 cm wide. Infl orescence: short, Naive, M.D. De Leon & Buenavista appearing opposite the leaves, carry- ing 2 (to 4) fl owers, which are about 2.8 cm in diameter; fl oral bracts lan- ceolate, encircling base of pedicel; pedicel and ovary grooved. Flower col- our: fl oral segments cream with broad brown stripes on the inner surface, cream with purple fl ecks on the outer surface. Labellum cream. Floral bracts pale yellow. Flower stem, pedicel and ovary purple. Dorsal Sepal: oblong, apex rounded, covering the column, 1.7 cm long by 0.7 cm wide. Petals: broadly ovate, apex rounded, 1.3 cm long by 0.7 cm wide. Lateral sepals: falcate, apex rounded, 1.8 cm long by 0.8 cm wide. Labellum: three lobed, three longitudinal, pubescent ridg- es in the center of the labellum, upper surface of the labellum pubescent; up- per margin entire; side lobes upright, rounded, 0.3 cm long; mid lobe fold- ed centrally, apex rounded. Column: arching slightly, 0.8 cm long by 0.4 cm wide, with two short, round fl aps on the underside; column foot 0.9 cm long, narrowed to 0.25 cm at base. An- ther cap: 2.1 mm long by 1.8 mm wide. Habitat and distribution: Cylindrolo- bus datuguinai is endemic to the Phil- ippines, and has so far only been found in Bukidnon province on Mind- anao, at elevations of about 1,778 me- tres above sea level in montane forest. Comparison: Cylindrolobus datugui- nai Naive, M.D. De Leon & Buenavis- ta can be compared to Cylindrolobus Acknowledgement: Our sincere thanks longissimus (Ames and Quisumbing) to Jim Cootes for his input into this W. Suarez, but it differs in the shape description. of the side lobes, which in Cyl. datu- guinai are square, whereas those of Cyl. longissimus are rounded; there is Mark Arcebal K. Naive Dave Buenavista a distinct rounded pubescent ridge on MS Biology (Graduate Student), Faculty, Department of Biology, the labellum of Cyl. datuguinai, which Department of Biology, Central Central Mindanao University, is lacking in Cyl. longissimus; the stem Mindanao University, University Town, University Town, Musuan, Maramag, of the infl orescence, the pedicel and Musuan, Maramag, 8710, Bukidnon, 8710, Bukidnon, Philippines ovary of Cyl. datuguinai are bright pur- Philippines ple in colour, whereas that of Cyl. lon- gissimus is pale yellowish-green. Dr. Miguel David De Leon Department of Ophthalmology, Etymology: Named in honour of, Datu Cagayan De Oro Medical Centre, Johny Guina, the Chieftain of the Ta- Tiano cor. Nacalaban Sts., laandig tribe of the province of Bukid- Cagayan De Oro City, non, on Mindanao who passionate- Misamis Oriental 9000, Philippines ly supports the conservation and pro- tection of the Kalatungan Mountain Range where this species is found. 4 Internet | Vol. 4 · 5 OrchideenJournal References: Agoo E.M.G., Schuiteman A. and de Leavitt R. G. 1909. ‘The Genus Eria O‘Byrne P. 2001. A - Z of South East Vogel E.F. 2003. Flora Malesiana: Or- in the Philippines’ - Botany Volume 4, Asian Orchid Species Orchid Society chids of the Philippines Vol. 1 World Philippine Journal of Science, C Num- of South East Asia/Singapore. Biodiversity Database CD-ROM Series. ber 3, pages 201 - 245. Raulerson L. and Rinehart A. 1992. ETI/National Herbarium of the Nether- Lewis B. and Cribb P. 1989. Orchids of Ferns and Orchids of the Mariana Is- lands. Vanuatu - Royal Botanic Gardens, Kew. lands. Comber J.B. 1990. Orchids of Java Lewis B. and Cribb P. 1991. Orchids of Schlechter R. 1982. The Orchidaceae Bentham-Moxon Trust, Royal Botanic the Solomon Islands and Bougainville of German New Guinea (English Trans- Gardens, Kew - Royal Botanic Gardens, Kew. lation) - The Australian Orchid Founda- Comber J.B. 2001. Orchids of Sumatra Lin Tsan-Piao. 1975. Native Orchids tion, Melbourne. Natural History Publications (Borneo) of Taiwan Vol. 1 - Southern Materials Seidenfaden G. and Wood J.J. 1992. Cootes J. 2011. Philippine Native Or- Center, Taipei, R.O.C. The Orchids of Peninsular Malaysia chid Species. Katha Publishing, Quez- Lin Tsan-Piao. 1987. Native Orchids and Singapore - Olsen and Olsen, Fre- on City, Philippines of Taiwan Vol. 2 - Southern Materials densborg. Handoyo Frankie and Ramadani Pra- Center, Taipei, R.O.C. Smith J.J. 1984. (Reprint) Die Orchi- setya. 2006. Native Orchids of Indone- Lin Tsan-Piao. 1988. Native Orchids deen von Java. Figuren Atlas. - Bishen sia – Indonesian Orchid Society of Ja- of Taiwan Vol. 3 - Southern Materials Singh Mahendra Pal Singh, India. karta. Center, Taipei, R.O.C. Valmayor H.L. 1984. Orchidiana O‘Byrne P. 1994. Lowland Orchids of Philippiniana - Eugenio Lopez Founda- Papua New Guinea SNP Publishers tion, Inc. Manila, Philippines. Singapore. Cylindrolobus datuguinai Naive, M.D. De Leon & Buenavista 5.
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