Geonoma elegans

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Geonoma (geo-NO-mah)
elegans (EHL-eh-gahnz)
Geonoma elegans (199).JPG
Tropical rain forest lowlands, Araquari-Santa Catarina, Brazil.
Scientific Classification
Genus: Geonoma (geo-NO-mah)
Species:
elegans (EHL-eh-gahnz)
Synonyms
None set.
Native Continent
America
America.gif
Morphology
Habit: Clustering
Leaf type: Pinnate
Culture
Survivability index
Common names
None.

Habitat and Distribution

Brazil Northeast, Brazil Southeast.
Tropical rain forest lowlands, Araquari-Santa Catarina, Brazil.
From 16°01-26°55-S and 39°22-49°49'W in the Atlantic Coastal Forest of Brazil (southern Bahia and Minas Gerais to Santa Catarina) at 265(2-800) m elevation in lowland rainforest.

Description

Palm 1.9 (1.0-3.0) m tall; stems 1.9 (0.8-3.0) m tall, 0.7 (0.4-1.0) cm in diameter, clustering, cane-like; internodes 1.5 (0.6-3.0) cm long, yellowish and smooth. Leaves 9 (8-10) per stem, undivided or irregularly pinnate, rarely regularly pinnate and the pinnae with 1 main vein only, not plicate, bases of blades running diagonally into the rachis; sheaths 8.2 (4.5-13.0) cm long; petioles 12.0 (3.0-29.0) cm long, drying green or yellowish; rachis 26.0 (13.5-45.0) cm long, 2.5 (1.3-4.3) mm in diameter; veins not raised or slightly raised and triangular in cross-section adaxially; pinnae 3 (1-14) per side of rachis; basal pinna 22.4 (15.5-34.5) cm long, 4.9(0.2-8.2) cm wide, forming an angle of 33(8-52)° with the rachis; apical pinna 14.1(8.0-26.5) cm long, 9.4 (4.0-15.3) cm wide, forming an angle of 29 (20-40)° with the rachis. Inflorescences unbranched; prophylls and peduncular bracts ribbed with elongate, unbranched fibers, both bracts tubular, narrow, elongate, closely sheathing the peduncle, more or less persistent; prophylls 15.2 (8.0-28.5) cm long, not short nd asymmetrically apiculate, the surfaces without ridges; peduncular bracts 18.5 (8.0-285.0) cm long, well-developed, inserted 6.2 (1.7-11.0) cm above the prophyll; peduncles 26.2 (10.0-45.06) cm long, 2.5 (1.3-4.8) mm in diameter; rachillae 1, 17.6 (3.5-28.0) cm long, 4.0 (1.9-8.0) mm in diameter, the surfaces without spiky, fibrous projections or ridges, drying brown or yellow-brown, without short, transverse ridges, not filiform and not narrowed between the flower pits; flower pits spirally arranged, glabrous internally; proximal lips without a central notch before anthesis, not recurved after anthesis, not hood-shaped; proximal and distal lips drying the same color as the rachillae, not joined to form a raised cupule, the proximal lip margins overlapping the distal lip margins; distal lips well-developed; staminate and pistillate petals not emergent, not valvate throughout; staminate flowers deciduous after anthesis; stamens 6; thecae diverging at anthesis, inserted almost directly onto the filament apices, the connectives bifid but scarcely developed; anthers short and curled over at anthesis; non-fertilized pistillate flowers deciduous after anthesis; staminodial tubes crenulate or shallowly lobed at the apex, those of non-fertilized flowers not projecting and persistent after anthesis. Fruits 9.5 (7.6-12.3) mm long, 7.2 (5.8-9.2) mm in diameter, the bases with a prominent, asymmetric stipe, the apices conical with rounded apices, the surfaces not splitting at maturity, without fibers emerging, not bumpy, not apiculate; locular epidermis without operculum, smooth or sculpted and then usually also with a raised, meridional ridge, without pores. (Henderson, A.J. 2011)/Palmweb. Editing by edric.

Culture

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).

Henderson, A.J. 2011. A revision of Geonoma. Magnolia Press.


Many Special Thanks to Ed Vaile for his long hours of tireless editing and numerous contributions.

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