Skip to main content
This species is accepted, and its native range is New Guinea.

[CATE]

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

Habitat
Primary to disturbed secondary lowland, gallery and hill monsoon and rain forest on various substrates including coralline limestone.
General Description
Slender, leptocaul, homeophyllous liane to 5 m; seedling not observed; pre-adult plants forming small terrestrial colonies; LEAVES: adult shoot architecture comprised of elongated, clinging, physiognomically unbranched, leafy, non-flowering stems and very short to somewhat lengthened mostly unbranched, free, sympodial, leafy, flowering stems; stems smooth, flexuous, climbing stems ± terete, occasionally weakly sulcate on two opposing sides, free stems terete, to similarly sulcate, without prophyll, cataphyll and petiolar sheath fibre, internodes 1-9 x 0.2-0.6 cm on clinging and free shoots, flowering shoots with shorter internodes, separated by weak straight leaf scars, occasionally disarticulating into 2-4 internode lengths and these later rooting and forming independent plants, older stems woody; flagellate foraging stems frequent, terete in cross-section with reduced leaves basally, terminal portion with caducous cataphylls; clasping roots arising sparsely from the clinging stems, very slightly pubescent; feeding roots solitary from nodes, clinging to climbing surface; leaves weakly spiro-distichous, moderately densely arranged; cataphylls and prophylls membranous, caducous; petiole grooved adaxially, 3-12 x 0.1-0.2 cm, smooth, with a slight apical and basal geniculum, although older leaves often with genicula enlarged and cracking-corky; petiolar sheath slightly prominent, extending beyond the apical geniculum by two ligules, caducous leaving a continuous scar from the petiole base, around the top of the apical geniculum and back to the base; lamina entire, elliptic to elliptic-lanceolate or oblanceolate, 6-25 x 2-9 cm, thinly coriaceous to submembranous, base cuneate to acute or subovate, apex acute to weakly acuminate, with a minute tubule; midrib raised abaxially, slightly sunken adaxially in fresh material, slightly sunken abaxially and adaxially in dry material; primary venation pinnate, slightly raised on both surfaces in dried material; interprimaries reticulate to sub-parallel to, but much less distinctive than, primaries, degrading into weakly reticulate venation, very slightly raised abaxially; secondary and tertiary venation reticulate; INFLORESCENCE solitary, subtended by a fully developed foliage leaf and a caducous cataphyll; peduncle slightly compressed-terete, 1.3-2.5 x 0.15-0.3 cm; spathe globose to ovoid-ellipsoid, truncate basally at insertion on petiole, apex briefly beaked, 1-2 x 1-2.5 cm, thick fleshy, dark yellow, marcescent, drying brown, later pushed off by developing infructescence leaving a large scar; spadix globose to ellipsoid-cylindrical, sessile, inserted level on peduncle, 1-1.5 x 0.7-1 cm, obtuse, yellow-white; stylar region rounded-rhombohexagonal, 0.9-1.5 x 0.85-1.2 mm, truncate; stigma punctiform to very slightly elliptic, c. 0.45 x 0.3 mm diam., prominent in dried material; anthers well-exserted at male anthesis; INFRUCTESCENCE not observed.
Diagnostic
Rhaphidophora neoguineensis is characterized by a small (1-2 x 1-2.5 cm), marcescent, globose spathe and ellipsoid-cylindrical spadix. In herbaria it is much confused with R. mima but which is readily separated by the cigar-shaped, caducous spathe and cylindrical spadix. Confusion with R. schlechteri is also possible, although this has a larger spathe (4-6 x c. 2.4 cm) and a stipitate spadix
Distribution
New Guinea. Widespread but, by the exclusion of many collections here recognized as new species, not as common as was once thought.

Native to:

New Guinea

Rhaphidophora neoguineensis Engl. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Hay [K 2], New Guinea 58061.000
Hay [K 2], Papua New Guinea 58909.000

First published in K.M.Schumann & U.M.Hollrung, Fl. Kais. Wilh. Land: 19 (1889)

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 2001. The Genus Rhaphidophora Hassk. (Araceae-Monsteroideae-Monstereae) in New Guinea, Australia and the Tropical Western Pacific Gardens Bulletin Singapore. 53: 75-183

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

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