Difference between revisions of "Syagrus"
Palm. Fam. 18. 1824.
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|publication year=1824 | |publication year=1824 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V22/V22_487.xml |
|subfamily=Arecaceae subfam. Arecoideae | |subfamily=Arecaceae subfam. Arecoideae | ||
|tribe=Arecaceae tribe Cocoeae | |tribe=Arecaceae tribe Cocoeae | ||
Revision as of 21:23, 27 May 2020
Stems solitary, erect, robust, unarmed, bearing conspicuous nodal rings. Leaves: petiole unarmed; sheath not forming crownshaft; blade pinnate, unarmed; plication reduplicate; segments regularly arranged in multiple planes, apices acute to 2-cleft. Inflorescences axillary within crown of leaves, paniculate, 1 order of branching, ascending, becoming pendulous in fruit; prophyll short; peduncular bract woody, beaked, splitting abaxially, becoming boat-shaped. Flowers unisexual, sessile, borne in triads of 1 pistillate flower flanked by 2 staminate, staminate flowers borne singly along distal portions of rachillae. Staminate flowers: sepals 3, connate; petals 3, free, valvate, leathery; stamens 6, free; anthers linear; pistillode with 3 minute lobes. Pistillate flowers borne basally on rachillae, massive; sepals 3, imbricate, free; petals 3, imbricate, free; staminode a low annular ring at base of pistil; pistil 1, large; ovules 1; style indistinct; stigmas 3. Fruits drupes, ovoid, less than 4 cm diam.; exocarp orange, thin, smooth; mesocarp fleshy, oily; endocarp thick, bony, irregularly folded into seed, with 3 basal germination pores. Seeds irregular with hollow cavity; endosperm homogeneous; embryo basal; eophyll undivided, lanceolate.
Distribution
North America, West Indies (Lesser Antilles), South America.
Discussion
Species 32 (1 in the flora).
Selected References
None.