Brassiophoenix Burret
  • Notizbl. Bot. Gart. Berlin-Dahlem 12: 345 (1935) 


Notes: Distribution: New Guinea

General Description

Small to moderate, solitary, unarmed, pleonanthic, monoecious palms. Stem slender, erect, ringed with leaf scars, light grey to brown. Leaves pinnate, spreading to erect; sheath forming a crownshaft, sometimes bearing a triangular appendage opposite the petiole, glaucous or densely white tomentose and minutely dotted; petiole very short, slender, deeply channelled adaxially, rounded abaxially, densely white tomentose, minutely brown-dotted, and bearing dark curly ramenta; rachis slender, adaxially ridged in the centre, rounded abaxially, densely covered in dark or red-brown tattered scales; leaflets single-fold, wedge-shaped, apically trilobed, the centre lobe much prolonged, all lobes toothed, basally bearing dark chaffy scales as the rachis, glaucous abaxially, midrib and marginal ribs large, transverse veinlets not evident. Inflorescences infrafoliar, branched to 2(–3) orders basally, densely dark or white-woolly tomentose throughout; peduncle short, dorsiventrally flattened; prophyll tubular, short, 2-keeled laterally, splitting apically; peduncular bract twice as long as the prophyll, tubular, exserted at maturity, 1 or 2 additional incomplete, ribbon-like or triangular to elongate peduncular bracts present; rachis longer than the peduncle bearing very short, spirally arranged bracts subtending branches and rachillae; rachillae rather short, thick in the middle, bearing very short, spirally arranged bracts subtending triads of flowers nearly throughout the rachillae, triads distant, staminate flowers projecting laterally, much wider than the rachillae; floral bracteoles 3, the first small, pointed, the second 2 large, rounded. Staminate flowers bullet-shaped in bud; sepals 3, distinct, short, rounded, imbricate, gibbous basally, edges toothed; petals 3, distinct, ovate, valvate, thick, tapering to a blunt point; stamens numerous (ca. 100–230), inserted on a conical receptacle, filaments long, slender, anthers elongate, basifixed, latrorse, connective tanniniferous, prolonged basally between the anthers; pistillode small, conical, sometimes with a short terete neck. Pollen ellipsoidal asymmetric; aperture a distal sulcus; ectexine tectate, perforate, or perforate-rugulate, aperture margin similar or slightly finer; infratectum columellate; longest axis ranging from 31–56 µm [2/2]. Pistillate flowers ovoid; sepals 3, distinct, thickened dorsally, broadly imbricate, bearing large scales, margins split irregularly; petals 3, distinct, about twice as long as the sepals at anthesis, otherwise like the sepals, tips thick, shortly valvate; staminodes joined basally into a shallow ring bearing short 3-lobed projections; gynoecium ovoid, unilocular, uniovulate, style not differentiated, stigma 3-lobed, fleshy, papillose, reflexed at anthesis, ovule laterally attached, pendulous, form unknown. Fruit ellipsoidal, tapered at both ends, wrinkled and ridged when dry, pale yellow-orange or red at maturity, stigmatic remains apical; epicarp with short, single, oblique fibrous bundles and interspersed brachysclereids, mesocarp fleshy, endocarp hard, thick, ridged. Seed laterally attached, irregular with 5 ridges, pointed distally, hilum elongate, raphe branches curved, somewhat anastomosing, endosperm homogeneous; embryo basal. Germination adjacent-ligular; eophyll bifid, tips toothed. Cytology: 2n = 32.

Diagnostic Description

Small to moderate, solitary pinnate-leaved palm, endemic to New Guinea, with crownshaft and praemorse leaflets, the leaflets conspicuously 3-pronged; the fruit has a deeply grooved endocarp; the seed has homogeneous endosperm.

Morphology

Root (Seubert 1998a, 1998b) and fruit (Essig 1977).

Biology

Both species are inhabitants of mixed lowland rain forest.

Distribution

Two species in New Guinea.

Uses

Handsome ornamentals.

Common Names

Common names unknown.

Distribution Map

 
  • Native distribution
Found in
  • Asia-Tropical Papuasia New Guinea

  Bibliography

  • 1 J. Dransfield & N. Uhl & C. Asmussen & W.J. Baker & M. Harley & C. Lewis, Genera Palmarum. The evolution and classification of palms. 2008
  • 2 Govaerts, R. & Dransfield, J. (2005). World Checklist of Palms: 1-223. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • 3 Govaerts, R. (1996). World Checklist of Seed Plants 2(1, 2): 1-492. Continental Publishing, Deurne.

 Information From

Palmweb - Palms of the World Online
http://www.palmweb.org
Palmweb 2011. Palmweb: Palms of the World Online. Published on the internet http://www.palmweb.org. Accessed on 21/04/2013
  • A Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
  • B http://creativecommons.org/publicdomain/zero/1.0
eMonocot
http://e-monocot.org
eMonocot. (2010, 1st November). Retrieved Wednesday, 8th February, 2012, from http://e-monocot.org.
  • C Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
World Checklist of Selected Plant Families
http://apps.kew.org/wcsp/
WCSP 2014. 'World Checklist of Selected Plant Families. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; http://apps.kew.org/wcsp/ Retrieved 2011 onwards
  • D See http://kew.org/about-kew/website-information/legal-notices/index.htm You may use data on these Terms and Conditions and on further condition that: The data is not used for commercial purposes; You may copy and retain data solely for scholarly, educational or research purposes; You may not publish our data, except for small extracts provided for illustrative purposes and duly acknowledged; You acknowledge the source of the data by the words "With the permission of the Trustees of the Royal Botanic Gardens, Kew" in a position which is reasonably prominent in view of your use of the data; Any other use of data or any other content from this website may only be made with our prior written agreement.