Bactris aubletiana
Bactris (BAHK-triss) aubletiana (ahoob-leh-tee-AHN-ah) | |||||||
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French Guiana. Photo-tipalm.fr | |||||||
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Contents
Habitat and Distribution
Suriname and French Guiana lowland forest on terra firme, 10- 460 m elevation.
Description
Stems solitary or cespitose, 0.6-2 m tall, 0.3-0.5 cm in diam. Leaves 10-11; leaf spines absent, rarely present, then black, to 1 cm long, scattered on sheath and petiole; sheath 8-15 cm long; ocrea much reduced, to 1 cm long, with an apical fringe of hairs; petiole 5-16 cm long; rachis 3-18 cm long; blade simple, bifid, often with soft spines on margins, with prominent cross-veins; blade 17-30 cm long, 4-10 cm wide at apex of rachis. Inflorescences interfoliar, becoming infrafoliar in fruit; peduncle 3-3.5 cm long, recurved, spinulose; prophyll 2.5-4 cm long; peduncular bract 5-7 cm long, moderately to densely covered with soft, erect, black spines to 5 mm long; rachillae 1-3,2.5-3.5 cm long, at anthesis covered with brown, moniliform trichomes and sometimes with short spinules; triads regularly arranged; staminate flowers to 3 mm long, deciduous; sepal lobes about 1 mm long; petals 2.5-3.5 mm long; stamens 6; pistillode absent; pistillate flowers to 2.5 mm long; calyx cupular, 0.5-1 mm long; corolla tubular, 1.5-2 glabrous or spinulose; staminodes absent; fruits 0.5-0.7 cm in diam., globose, orange; mesocarp starchy; endocarp turbinate, the pores equally spaced; endocarp fibers few or absent; fruiting perianth with small, lobed calyx and much longer, 3-lobed, glabrous or spinulose corolla, without staminodial ring. (Govaerts, R. & Dransfield, J. (2005). World Checklist of Palms: 1-223. The Board of Trustees of the Royal Botanic Gardens, Kew)/Palmweb. Editing by edric.
Bactris aubletiana is diagnosed by its simple, bifid leaf blade with prominent cross-veins, and moderately to densely spiny peduncular bract (the rest of the plant is mostly not spiny). (Govaerts, R. & Dransfield, J. (2005). World Checklist of Palms: 1-223. The Board of Trustees of the Royal Botanic Gardens, Kew)/Palmweb.
Culture
Cold Hardiness Zone: 10a
Comments and Curiosities
External Links
References
Phonetic spelling of Latin names by edric.
Special thanks to Geoff Stein, (Palmbob) for his hundreds of photos.
Special thanks to Palmweb.org, Dr. John Dransfield, Dr. Bill Baker & team, for their volumes of information and photos.
Glossary of Palm Terms; Based on the glossary in Dransfield, J., N.W. Uhl, C.B. Asmussen-Lange, W.J. Baker, M.M. Harley & C.E. Lewis. 2008. Genera Palmarum - Evolution and Classification of the Palms. Royal Botanic Gardens, Kew. All images copyright of the artists and photographers (see images for credits).
Govaerts, R. & Dransfield, J. (2005). World Checklist of Palms: 1-223. The Board of Trustees of the Royal Botanic Gardens, Kew.
Many Special Thanks to Ed Vaile for his long hours of tireless editing and numerous contributions.