Alloteropsis

J. Presl
Treatment appears in FNA Volume 25. Treatment on page 385.
 TaxonIllustrator 
FNA25 P147B Alloteropsis pg 386.jpegAlloteropsis cimicinaHana Pazdírková
Linda A. Vorobik

Plants annual or perennial; cespitose. Culms 15-150 cm, erect or decumbent and rooting at the lower nodes, erect distally; nodes glabrous or pubescent. Leaves mostly basal; sheaths stiffly pubescent; ligules of hairs or membranous and ciliate; blades linear to lanceolate. Inflorescences terminal, panicles of 4-11 digitate or subdigitate, spikelike branches; branches naked at the base, spikelets in pairs or triplets, lower lemmas and lower glumes closest to the branch axes; disarticulation below the glumes. Spikelets 2.5-7 mm, dorsally compressed, with 2 florets. Glumes acute to shortly awned; lower glumes about M as long as the spikelets, 1-2-veined; upper glumes equaling the spikelets, 3-5-veined, margins ciliate; lower florets staminate; lower lemmas papery; lower paleas reduced, deeply bifid, 1-veined; upper florets bisexual; upper lemmas stiffly membranous, margins involute, apices attenuate into a mucro or curved awn; anthers 3. Caryopses elliptic, x = 9.

Distribution

Md., Fla., Miss.

Discussion

Alloteropsis is a genus of five to eight species that are native to tropical Asia and Australia. One species is now established in the Flora region. Alloteropsis semialata (R. Br.) Hitchc. is an important forage species in other parts of the world.

Selected References

None.

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

... more about "Alloteropsis"
anatomy +  and kranz +
David W. Hall +
J. Presl +
1 (?) +  and 3 (?) +
keeled +  and rounded +
pseudopetiolate +  and branching +
divergent +  and parallel +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
membranous +
disarticulating +  and pseudopetiolate +
non-radiate +  and radiate +
linear +  and lanceolate +
naked +, subdigitate +  and digitate +
spikelike +
not developed +
terete +  and compressed +
sometimes longer +
erect +  and decumbent +
15 cm150 mm <br />0.15 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
Md. +, Fla. +  and Miss. +
capillary +
germination +
pistillate +  and staminate +
sometimes longer +
compressed +  and terete +
shorter or longer +
subtending +
acute +  and shortly awned +
unequal +
membranous +
uncinate +
bracteate +  and ebracteate +
solid +  and hollow +
coriaceous +
membranous +
inconspicuous +
complex +  and simple +
concealed +  and prominent +
pubescent +  and glabrous +
2 +  and 1 +
subterranean +
dry +  and fleshy +
in triplets +  and paired +
1 +  and 60 +
unisexual +  and bisexual +
compressed +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
1 (?) +  and 3 (?) +
fused +  and free +
2 (?) +  and 3 (?) +
dome--shaped +  and triangular +
Gramineae +
Alloteropsis +
Poaceae tribe Paniceae +
membranous +
perennial +  and annual +
plant +  and cespitose +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +