Bactris pliniana
Bactris (BAHK-triss) pliniana (plihn-ee-AHN-ah) | |||||||
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Lowland along the N1, near Kourou going to Sinnamary, French Guiana. Photo by Hervé GALLIFFET. | |||||||
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Contents
Habitat and Distribution
Guianas and Brazil (Amapá, Pará). Lowland rain forest in low, swampy areas at low elevations.Description
Stems cespitose or sometimes solitary, to 2 m tall, 2-4 cm in diam., spiny on internodes. Leaves about 6; leaf spines scattered, black, somewhat flattened, to 4 cm long, few (rarely dense) on sheath, petiole, and rachis; sheath 20-55 cm long; ocrea to 10 cm long; petiole 0.6-1.3 m long; rachis 1.3-1.8 m long; pinnae 16-25 per side (rarely leaf simple), irregularly arranged in clusters of 2-7, spreading in different planes, oblanceolate to sigmoid; middle pinnae 25-42 x 3.5-5 cm. Inflorescences interfoliar; peduncle 10-15 cm long, recurved, sparsely spiny or spinulose; prophyll 8-13 cm long; peduncular bract 23-25 cm long, densely covered with dark brown or yellowish, soft spines to 1 cm long; rachis about 2.5 cm long; rachillae 20-60, 5-15 cm long, filamentous, spinulose, at anthesis covered with brown or white, moniliform trichomes; triads more or less regularly arranged (but often with solitary staminate flowers interspersed) on proximal about half or more of rachillae, and there tending to be absent from adaxial side of rachillae (paired or solitary staminate flowers only on distal about half of rachillae); staminate flowers 2-3 mm long; sepal lobes 0.5 mm long; petals 2-3 mm long; stamens 6; pistillode absent; pistillate flowers 3-5 mm long; calyx cupular, about 1 mm long; corolla tubular, 3-5 mm long, spinulose; fruits 1.2-2 cm in diam., broadly obovoid, bright orange, densely spinulose; mesocarp starchy; endocarp turbinate, the sterile pores displaced longitudinally; endocarp fibers few; fruiting perianth with glabrous, lobed calyx shorter than the spinulose, lobed corolla, without staminodial ring./Palmweb. Editing by edric.
Bactris pliniana is diagnosed by its oblanceolate to sigmoid pinnae, filamentous, spinulose rachillae, spinulose pistillate corolla, and broadly obovoid, bright orange, densely spinulose fruits 1.2-2 cm diameter. De Granville & Henderson (1994) give further discussion of this species. Several specimens (de Granville 1113, de Granville & Cremers 13201, and Cremers & Gautier 11978) have simple leaves./Palmweb.
Culture
Cold Hardiness Zone: 10a
Comments and Curiosities
External Links
- Glossary of Palm Terms
- MODERN BOTANICAL LATIN
- "Just To Be Clear"
- http://www.lachaussetterouge.fr/2016/07/bactris-pliniana.html
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).
Many Special Thanks to Ed Vaile for his long hours of tireless editing and numerous contributions.