Sacciolepis

Nash
Treatment appears in FNA Volume 25. Treatment on page 404.
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 TaxonIllustrator 
FNA25 P155 Sacciolepis pg 405.jpegSacciolepis striataKaren Klitz
Linda A. Vorobik

Plants annual or perennial; rhizomatous, stoloniferous, or cespitose. Culms 5-150 cm, not woody, branched above the base; internodes hollow. Leaves cauline; auricles sometimes present; ligules membranous, sometimes ciliate; blades flat or rolled, with or without cross venation. Inflorescences terminal, usually contracted, dense panicles, distal 1/2 of the rachises concealed by the spikelets; branches fused to the rachises or free and appressed to ascending; pedicels with discoid apices; disarticulation below the glumes and below the upper florets. Spikelets bisexual, with 2 florets, rounded to acute; rachilla segments not swollen. Glumes unequal, prominently veined, unawned; lower glumes 3-7-veined; upper glumes as long as or exceeding the upper florets, distinctly saccate or gibbous, 5-13-veined; lower florets 0.8-1.9 mm, sterile or staminate, less than 1/2 as long as the spikelets; lower lemmas resembling the upper glumes but not saccate, sometimes with a transverse row of hairs, 5-9-veined, unawned; lower paleas present or absent, 0-2-veined; upper lemmas subcoriaceous to subindurate, dorsally compressed, glabrous, smooth, margins inrolled or flat, never hyaline, faintly 3-5-veined; upper paleas similar to the lemmas, 2-veined; lodicules 2, fleshy, glabrous, x = 9.

Distribution

Puerto Rico, Md., N.J., Del., Mass., Maine, Okla., Miss., Tex., La., Mo., Ala., Tenn., N.C., S.C., Va., Ark., Pacific Islands (Hawaii), Ga., Fla.

Discussion

Sacciolepis is a genus of 30 species. It is represented throughout the tropics and subtropics, primarily in Africa. Two species grow in the Flora region. One is native; the other is an introduction that has become established. Most species grow along and in ponds, lakes, streams, ditches, and other moist areas. The prominently multi-veined, saccate upper glumes and contracted panicles distinguish Sacciolepis from all other grasses in the Flora region.

Key

1 Primary branches fused to the rachises for at least 3/4 of their length; lower branches 0.1-0.5 cm long; upper glumes 9-veined; paleas of the lower florets 0.5-1 mm long, to 1/2 as long as the lower lemmas Sacciolepis indica
1 Primary branches ascending, free from the rachises; lower branches 0.4-11.5 cm long; upper glumes 11(12)-veined; paleas of the lower florets 2-4 mm long, 3/4 to almost as long as the lower lemmas Sacciolepis striata

"decumbent" is not a number.

... more about "Sacciolepis"
anatomy +  and kranz +
J.K. Wipff +
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 +
rolled +  and flat +
free +  and fused +
appressed;ascending +
spikelike +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
not developed +
terete +  and compressed +
sometimes longer +
ascending +  and erect +
5 cm50 mm <br />0.05 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
not woody +
Puerto Rico +, Md. +, N.J. +, Del. +, Mass. +, Maine +, Okla. +, Miss. +, Tex. +, La. +, Mo. +, Ala. +, Tenn. +, N.C. +, S.C. +, Va. +, Ark. +, Pacific Islands (Hawaii) +, Ga. +  and Fla. +
capillary +
germination +
pistillate +  and staminate +
sometimes longer +
compressed +  and terete +
shorter or longer +
subtending +
unequal +
membranous +
uncinate +
bracteate +  and ebracteate +
coriaceous +
membranous +
inconspicuous +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.19 cm1.9 mm <br />0.0019 m <br />) +
flat +  and inrolled +
complex +  and simple +
concealed +  and prominent +
2 +  and 1 +
subterranean +
dry +  and fleshy +
judziewicz1990a +  and simon1972a +
in triplets +  and paired +
1 +  and 60 +
rounded +  and acute +
1 +  and 3 +
fused +  and free +
2 +  and 3 +
dome--shaped +  and triangular +
Gramineae +
Sacciolepis +
Poaceae tribe Paniceae +
membranous +
gibbous +  and saccate +
subcoriaceous +  and subindurate +
stoloniferous +  and rhizomatous +
perennial +  and annual +
plant +  and cespitose +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +