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This species is accepted, and its native range is Peninsula Thailand to Malesia and New Guinea (Kep. Aru).
A specimen from Kew's Herbarium

[CATE]

CATE Araceae, 17 Dec 2011. araceae.e-monocot.org

Distribution
Peninsular Malaysia (Negri Sembilan, Pahang, Penang, Perak, Selangor), Sumatera, Java, Nusa Tenggara, throughout Borneo, and Maluku.
Habitat
Damp to wet hill to sub-montane forest.
Diagnostic
Spadix weakly clavate. Rhaphidophora sylvestris is most similar to R. montana and R. crassifolia. From R. montana it may be distinguished by the narrower leaves, the lack of shoot tip fibre and by the shorter (3.5 - 6 cm compared with 9-16 cm in R. montana) clavate-cylindrical spadix. Overall R. crassifolia is very similar in appearance but may be readily identified by the considerably thicker leaves, especially notable in dried specimens and the twisted primary adherent stem. Additionally, R. crassifolia is a species of lowland habitats.
General Description
Medium to large, occasionally very large, moderately robust, leptocaul to semi-pachycaul homeophyllous liane to 20 m; seedling stage a non-skototropic shingling shoot; pre-adult plants very seldom forming small terrestrial colonies of shingling shoots; LEAVES: adult shoot architecture comprised of greatly elongated, clinging, physiognomically monopodial, leafy, non-flowering stems and long, moderately elaborated, free, sympodial, densely leafy, flowering stems later pendent under their own weight; stems smooth, climbing stems rectangular in cross section, the angles often slightly winged, the surfaces between slightly concave, free stems rectangular to sub-terete in cross-section, green, later mid-brown, without prophyll, cataphyll and petiolar sheath fibre, internodes to 2.5 - 5 x 0.5-1 cm on adherent shoots, usually less stout on free shoots, separated by weakly defined, slightly oblique leaf scars, older stems woody; flagellate foraging stems frequent, often of great length, ± rectangular in cross section; clasping roots densely arising from the nodes and internodes of clinging stems, pubescent; feeding roots very rare, adherent, pubescent; leaves distichous on adherent and free shoots, those distal on flowering shoots densely so; cataphylls and prophylls membranous, very quickly drying and falling; petiole deeply grooved adaxially, 1-8.5 x 0.15-0.3 cm, smooth, apical and basal genicula weakly defined; petiolar sheath very prominent, extending to and encircling the apical geniculum, briefly ligulate, very swiftly drying and falling to leave a continuous conspicuous scar from the petiole base, around the top of the apical geniculum and back to the base; lamina entire, lanceolate-elliptic to falcate-lanceolate, slightly to markedly oblique, 4.5-32 x 1.75-8.5 cm, thinly coriaceous, upper surfaces slightly glossy, lower surfaces semi-matte, base sub-acute to briefly truncate, apex acute to slightly attenuate, with a prominent apiculate tubule; mid-rib slightly raised abaxially, slightly sunken adaxially; primary venation pinnate, slightly raised abaxially and adaxially; interprimaries parallel to primaries and only slightly less prominent, very slightly raised abaxially and adaxially; secondary and tertiary venation ± obscure in fresh material, visible as a faint reticulum in dried specimens; INFLORESCENCE solitary, subtended by a fully developed foliage; peduncle compressed-cylindric, 2-8.5 x 0.15-0.5 cm; spathe cigar-shaped, stoutly very short-beaked, 4.5-7.5 x 1-3 cm, thinly stiff-fleshy, dull yellow, paler internally, swiftly falling at female receptivity; spadix weakly clavate-cylindrical, sessile, inserted ± level on peduncle, 3-6 x 1-2.5 cm; stylar region, mostly rhombohexagonal, 1-2 x 1.5-2 mm, truncate; stigma punctiform, raised, c.c. 0.25-0.3 mm diam.; anthers exserted at anthesis; INFRUCTESCENCE 6-8 x 2-2.5 cm.

Native to:

Borneo, Jawa, Lesser Sunda Is., Malaya, Maluku, New Guinea, Sumatera, Thailand

Rhaphidophora sylvestris (Blume) Engl. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Aug 1, 2001 Motley, J. [741], Kalimantan K000291815 Unknown type material
Aug 1, 2001 Scortechini, B. [521], Peninsular Malaysia K000291804 syntype
Aug 1, 2001 Kunstler, "Dr. King's collector" [6956], Peninsular Malaysia K000291803 syntype
Aug 1, 2001 Kunstler, "Dr. King's collector" [2939], Peninsular Malaysia K000291802 syntype
Aug 1, 2001 Wray, L. Jr. [s.n.], Peninsular Malaysia K000291801 syntype
Beccari, O. [952], Sarawak K000291816 isotype

First published in A.L.P.de Candolle & A.C.P.de Candolle, Monogr. Phan. 2: 239 (1879)

Accepted by

  • Boyce, P.C., Sookchaloem, D., Hetterscheid, W.L.A., Gusman, G., Jacobsen, N., Idei, T. & Nguyen, V.D. (2012). Flora of Thailand 11(2): 101-325. The Forest Herbarium, National Park, Wildlife and Plant Conservation Department, Bangkok.
  • Govaerts, R. & Frodin, D.G. (2002). World Checklist and Bibliography of Araceae (and Acoraceae): 1-560. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Mansor, M., Boyce, P.C., Othman, A.S. & Sulaiman, B. (2012). The Araceae of peninsular Malaysia: 1-146. Penerbit Universiti Sains Malaysia.

Literature

CATE Araceae

  • P.C. Boyce 1999. The Genus Rhaphidophora Hassk. (Araceae-Monsteroideae-Monstereae) in Peninsular Malaysia, and Singapore Gardens Bulletin Singapore. 51: 183-256

Kew Backbone Distributions

  • Boyce, P.C., Sookchaloem, D., Hetterscheid, W.L.A., Gusman, G., Jacobsen, N., Idei, T. & Nguyen, V.D. (2012). Flora of Thailand 11(2): 101-325. The Forest Herbarium, National Park, Wildlife and Plant Conservation Department, Bangkok.

CATE Araceae
Haigh, A., Clark, B., Reynolds, L., Mayo, S.J., Croat, T.B., Lay, L., Boyce, P.C., Mora, M., Bogner, J., Sellaro, M., Wong, S.Y., Kostelac, C., Grayum, M.H., Keating, R.C., Ruckert, G., Naylor, M.F. and Hay, A., CATE Araceae, 17 Dec 2011.
http://creativecommons.org/licenses/by-nc-sa/3.0

Herbarium Catalogue Specimens
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0