Gynerium

Willd. ex P. Beauv.
Treatment appears in FNA Volume 25. Treatment on page 353.

Plants perennial; dioecious, staminate and pistillate plants similar in gross morphology; rhizomatous. Sheaths overlapping, mostly glabrous or the young and bladeless leaves sparsely pilose, margins usually pilose distally; collars pilose in young leaves with rudimentary blades; ligules pilose; blades to 2 m, leathery, glabrous, lower blades disarticulating at maturity, midribs 0.5-1.5 cm wide, sometimes with a line of scattered hairs on either side. Panicles large, the pistillate panicles plumose. Pistillate spikelets with 2 florets; disarticulation above the glumes and between the florets; glumes 1-3-veined, tardily disarticulating; upper glumes longer and firmer than the lower glumes, exceeding the florets; lemmas shortly pilose below, long pilose above, apices elongated and narrowed; lodicules 2, membranous, faintly 2-3-veined, sometimes with long hairs, truncate; staminodes 2; styles 2. Staminate spikelets with 2-4 florets; disarticulation below the terminal florets; glumes 1-veined; lemmas hyaline, glabrous, occasionally puberulent below; lodicules 2, free, faintly veined, truncate; anthers 2; ovary abortive.

Discussion

Gynerium is a monotypic genus that ranges from Mexico and the West Indies to northeastern Argentina.

Selected References

None.

"elongated" is not a number."decumbent" is not a number."elongated" is not a number.

... more about "Gynerium"
anatomy +  and kranz +
J. Gabriel Sanchez-Ken +
Willd. ex P. Beauv. +
1 (?) +  and 3 (?) +
keeled +  and rounded +
pseudopetiolate +  and branching +
divergent +  and parallel +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
articulated +  and not pseudopetiolate +
non-radiate +  and radiate +
rudimentary +
usually linear +  and lanceolate occasionally ovate +
0 cm0 mm <br />0 m <br /> (200 cm2,000 mm <br />2 m <br />) +
spikelike +
branched +  and solid +
ascending +  and erect +
200 cm2,000 mm <br />2 m <br /> (1,500 cm15,000 mm <br />15 m <br />) +
Puerto Rico +
capillary +
pistillate +  and staminate +
sometimes longer +
2 +  and 4 +
compressed +  and terete +
1-veined +, disarticulating +  and 1-3-veined +
shorter or longer +
subtending +
subequal +  and unequal +
membranous +  and firm +
uncinate +
bracteate +  and ebracteate +
(0)1(3)-veined +
puberulent +, glabrous +  and pilose +
membranous +
veined +  and 2-3-veined +
inconspicuous +
complex +  and simple +
0.5cm;1.5cm +
disarticulating +
concealed +  and prominent +
2 +  and 1 +
dry +  and fleshy +
persistent +
staminate +  and pistillate +
in triplets +  and paired +
1 +  and 60 +
unisexual +  and bisexual +
compressed +
1 (?) +  and 3 (?) +
dome--shaped +  and triangular +
Gramineae +
Gynerium +
Poaceae tribe Gynerieae +
membranous +
rhizomatous +, pistillate +  and staminate +
aquatic +  and terrestrial +