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This species is accepted, and its native range is Sumatera.
A specimen from Kew's Herbarium

[CATE]

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

Diagnostic
Petiole drying pale with apical geniculum much darker , leaf lamina drying strongly discolorous, pale yellow-brown abaxially, mid-brown adaxially. Spadix strongly tapering-cylindrical; stigma discoid, flat. Sumatera (Pulau Enggano - endemic). Distinctive in herbarium specimens by the strongly discolorous leaf lamina, the pale petioles and the dark apical geniculum. Rhaphidophora ustulata is most similar to R. floresensis from which it differs by the slender, more tapering spadix, the smaller spathe and the flat stigma. Confusion with R. montana is possible. However R. ustulata differs by the smaller, more slender spathe and the much shorter and more distinctly tapered spadix. Herbarium specimens have notably thinner-textured leaf laminae than R. montana .
Distribution
Sumatera (known only from Pulau Enggano). Endemic
General Description
Large, moderately robust, semileptocaul (?) homeophyllous (?) liane unknown ultimate height; seedling and pre-adult plants unknown; LEAVES: adult shoot architecture not fully known but apparently comprised of clinging, physiognomically monopodial, leafy, non-flowering stems and free, sympodial, densely leafy, flowering stems; stems smooth, free stems, ± terete in cross-section, without fibre at the tips of active shoots, internodes to 2 x 0.75 cm, separated by large ± straight leaf scars; roots unknown; leaves scattered-distichous on free shoots; cataphylls and prophylls conspicuous, membranous, very quickly drying and falling; petiole deeply grooved adaxially, 15-22 x c. 0.2 cm, smooth, apical and basal genicula well defined, in dry material the apical geniculum drying much darker (dark brown) than the petiole (pale orange-brown); petiolar sheath very prominent, extending to the apical geniculum, briefly acute-ligulate, swiftly drying and falling in chartaceous strips to leave a slightly corky scar; lamina entire, elliptic to falcate-elliptic-lanceolate, 24-34 x 4-7 cm, thinly coriaceous, drying strongly discolorous, pale yellow-brown abaxially, mid-brown adaxially, base acute, briefly decurrent, apex acuminate with a prominent apiculate tubule; midrib slightly raised abaxially, slightly sunken adaxially; primary venation pinnate, very slightly raised abaxially and adaxially; interprimaries parallel to primaries, less prominent, very slightly raised abaxially and adaxially; secondary and tertiary venation just visible as an extremely faint reticulum; INFLORESCENCE solitary, subtended by a fully developed foliage leaf in which the petiolar sheath is greatly expanded; peduncle strongly compressed cylindric, 2-3 x c. 0.3 cm; spathe narrowly canoe-shaped, slender very long-beaked, c. 8 x 1.2 cm, stiff-thinly leathery; spadix strongly tapering-cylindrical, sessile, inserted level on peduncle, 7.5-8.2 x c. 1.2 cm; stylar region rhombohexagonal, 1-1.2 mm diam., truncate; stigma elongate to discoid, ± flat, c. 0.3 mm diam.; anthers not exserted at anthesis; INFRUCTESCENCE unknown.

Native to:

Sumatera

Rhaphidophora ustulata P.C.Boyce appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Lütjeharms, W.J. [4473], Sumatera K000291819 isotype

First published in Gard. Bull. Singapore 52: 176 (2000)

Accepted by

  • 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.

Literature

CATE Araceae

  • P.C. Boyce 2000. The Genus Rhaphidophora Hassk. (Araceae-Monsteroideae-Monstereae) in the Southern and Western Indonesian Archipelago Gardens Bulletin Singapore. 52: 101-183

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