Laccosperma korupense Sunderl., Kew Bull. 58: 989 (2004)

Primary tabs

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Distribution

Map uses TDWG level 3 distributions (http://www.nhm.ac.uk/hosted_sites/tdwg/geogrphy.html)
Cameroonpresent (World Checklist of Arecaceae)B
Restricted to the coastal forests of Cameroon, L. korupensis is locally abundant in the Korup and National Park and its environs. (T.C.H Sunderland, A taxonomic revision of the rattans of Africa (Arecaceae: Calamoideae) in Phytotaxa 51. 2012)A

Discussion

Diagnosis

Biology And Ecology

Conservation

Etymology

Description

  • Clustered, slender palm climbing to 10m. Stem, not circular in cross section, but somewhat oval, without sheaths up to 12 mm in diameter, with ca.15 mm; internodes 12-15 cm long. Leaf sheath very sparsely to moderately armed with very fine, black tipped, downward-pointing spines; sheaths near leaf junction occasionally unarmed; black caducous indumentum present on mature sheaths; ocrea 7-10 cm long, gradually tapering at the apex, papyraceous and tattering, pale straw-coloured without, dark shiny brown within, armed with very fine black-tipped spines. Leaves up to 1.0 m long; petiole to 12 cm long × 0.8 cm wide, abaxially rounded, adaxially flattened, armed along the edges with up to 1 cm-long, inequidistant, black spines with pale bulbous bases, spreading or reflexed; rachis to 50 cm long, rounded or somewhat angular in cross section, armed as the petiole, the spines decreasing in size distally; cirrus to 70 cm long armed as the rachis, although spines becoming sparse distally; leaflets, 10-18 on each side of the rachis, inequidistant, usually sub-equidistant proximally and borne in pairs distally, lanceolate, finely acuminate at apex, bluntly cuneate at base, 12-20 cm long × 1.5-1.5 cm broad at widest point, ± concolorous, with prominent transverse veinlets and numerous, rather distant, small reflexed spines on the margins; acanthophylls absent. Flowers and fruits unknown. (T.C.H Sunderland, A taxonomic revision of the rattans of Africa (Arecaceae: Calamoideae) in Phytotaxa 51. 2012)A

Materials Examined

  • Collector unknown, Kumba (04°38N:09°26E) sterile, s.d. (FI!); Cheek 5062, Koto II (04°21N: 9°02E) sterile, October 2, 1993 (K!, SCA!); Harris 3660, Onge (04°21N:08°57E) sterile, July 11, 1993 (K!); Harris 3742, Onge (04°21N:08°57E) sterile, September 11, 1993 (K!, SCA!); Harris 3778, Onge (04°21N:08°57E) sterile, October 11, 1993 (K!, SCA!); Njingum 2, Bidou I, near Kribi (02°50N:09°58E) sterile, July 15, 1999 (K!); Sunderland 2303, Korup National Park, Chimpanzee Camp (05°02N:08°48E) sterile, February 15, 2000 (K!, SCA!); Thomas 9726, Idenau (04°16N:09°01E) sterile, September 10, 1993 (K!, SCA!). (T.C.H Sunderland, A taxonomic revision of the rattans of Africa (Arecaceae: Calamoideae) in Phytotaxa 51. 2012)A