Calamus helferianus Kurz, J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 43(2): 213 (1874)

Primary tabs

no image available

Distribution

Map uses TDWG level 3 distributions (http://www.nhm.ac.uk/hosted_sites/tdwg/geogrphy.html)
Myanmarpresent (World Checklist of Arecaceae)B
NDIA (Andaman Island), BURMA. (S.K. Basu, Rattans (canes) in India. A Monographic Revision. 1992)A

Discussion

  • Note: According to Beccari (1908), this species occurs in Andaman Islands, but except for the specimens studied by Beccari and one old specimen collected by Heifer with the locality mentioned as Andamans preserved in CAL, no other specimens were available for study. (S.K. Basu, Rattans (canes) in India. A Monographic Revision. 1992)A

Biology And Ecology

  • Its habitat in Andaman Island is unknown. (S.K. Basu, Rattans (canes) in India. A Monographic Revision. 1992)A

Description

  • Possibly a slender climber; leaves ecirrate; rachis acutely bifaced on upper side, aculeate below; leaflets in alternate groups of 2 - 5 leaflets on each side of the rachis, linear-lanceolate, 20 - 30 cm long, 13-15 mm broad at middle, tapering, attenuate at apices, 5-nerved; midnerve bristly above, smooth below. Male and female inflorescences slender; primary bracts tubular, very closely sheathing; rachillae non-drooping; male flowers oblong, 4 mm long, 1-2 mm apart; female flowers conical, 4 mm long, borne on distinct basal cushion; calyx urceolate; fruit unknown. (S.K. Basu, Rattans (canes) in India. A Monographic Revision. 1992)A

Materials Examined

  • Andamans : Heifer 6395 in 2 sheets (CAL Ace. nos. 493759, 493760). (S.K. Basu, Rattans (canes) in India. A Monographic Revision. 1992)A

Bibliography

    A. S.K. Basu, Rattans (canes) in India. A Monographic Revision. 1992
    B. World Checklist of Arecaceae