Carpentaria Becc.
  • Ann. Jard. Bot. Buitenzorg 2: 128 (1885) 


Notes: Distribution: N. Australia

General Description

Moderate or tall, solitary, unarmed, pleonanthic, monoecious palm. Stem erect, moderate, smooth, grey, ringed with leaf scars. Leaves pinnate, arching or drooping, tips becoming pendulous; sheath forming a prominent crownshaft; petiole very short, deeply channelled adaxially, rounded abaxially, covered with small brown scales; rachis channelled basally to ridged; leaflets abaxially shallowly convex, ± clustered basally, opposite to subopposite distally, long, narrow, lanceolate, tips oblique to truncate, praemorse, often with 2–4 longer prongs, the proximal sometimes tapering to a single or double point, adaxially lightly tomentose, abaxially covered with small brown-centred scales, midrib the only prominent nerve on both surfaces, larger abaxially, transverse veinlets not apparent. Inflorescences infrafoliar, horizontal, appearing rather large, branched to 3 orders basally, to 2–1 orders distally; peduncle very short, stout, flattened, bearing deciduous brown tomentum; prophyll tubular (not seen), caducous; peduncular bract tubular, caducous, shortly beaked, splitting abaxially, adaxially glabrous, abaxially densely to lightly covered in stellate brown scales, scar of 1 incomplete peduncular bract present; rachis much longer than the peduncle, elongate, tapering, bearing many (more than 20) ± angled first-order branches, each subtended by a very small, ridge-like bract; rachillae rather short, slender, spreading, bearing spirally arranged, distant triads of flowers for 2/3 their length and paired to solitary staminate flowers distally; floral bracteoles large, low, rounded. Staminate flowers lateral to the pistillate, symmetrical, ovoid; sepals 3, distinct, broadly imbricate, irregularly rounded, somewhat gibbous; petals 3, distinct, rather broadly ovate, valvate, evenly thickened, adaxially grooved; stamens ca. 33, filaments erect in bud, short, awl-shaped, anthers oblong-elliptical, bifid basally, emarginate apically, dorsifixed near the base, latrorse, connective broad, tanniniferous; pistillode bottle-shaped, as long as the stamens in bud. Pollen ellipsoidal asymmetric; aperture a distal sulcus; ectexine tectate, perforate and micro-chanelled, aperture margin slightly finer than main tectum; infratectum columellate; longest axis ranging from 39–53 µm; post-meiotic tetrads tetrahedral [1/1]. Pistillate flowers ovoid; sepals 3, distinct, imbricate, rounded, margins variously split; petals 3, distinct, broadly ovate and imbricate, tips thick, valvate, opening briefly apically to expose the stigmas at anthesis; staminodes 3, tooth-like, bifid apically; gynoecium asymmetrical, ovoid with a bulge on one side, unilocular, uniovulate, stigmas 3, fleshy, recurved at anthesis, ovule very large, laterally attached, form unknown. Fruit ovoid when fresh, red at maturity, stigmatic remains apical, perianth persistent; epicarp smooth, becoming wrinkled when dry, mesocarp fleshy over a layer of broad, flat fibres anastomosing distally and closely appressed to the endocarp, endocarp thin, glass-like. Seed attached laterally, ovoid, ± pointed, round in cross-section, hilum elongate, raphe branches anastomosing, endosperm homogeneous; embryo basal. Germination adjacent-ligular; eophyll bifid. Cytology: 2n = 32.

Diagnostic Description

Elegant, moderate to tall, solitary pinnate-leaved palm, native to Northern Territory, Australia, with crownshaft and praemorse leaflets, the leaf rachis gracefully arching; the fruit has a distinctive network of black fibres next to the endocarp; the seed has homogeneous endosperm.

Morphology

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

Biology

Found in rain forest along banks of streams at low elevations, usually near brackish water estuaries.

Distribution

One species in Northern Territory, Australia.

Uses

A handsome ornamental but requires humid tropical or subtropical conditions. Widely planted in northeastern Australia and southern Florida in parks and along streets.

Common Names

Carpentaria palm.

Distribution Map

 
  • Native distribution
Found in
  • Australasia Australia Northern Territory

  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. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. 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.