TT eee 
Sporobolus. | GRAMINE (Stapf). 579 
glumes, not continued, or very rarely isis — a bristle. Floret 
1, 3. Glumes 2, delicat tely membranous, lower usually smaller, 
nerveless, upper 1-nerved, falling away one a vat the other. Valve 
grain. Lodicules 2,small, broadly cuneate, glabrous, thin. Stamens 
3, rarely 2. Ovary glabrous; styles short, distinct, terminal ; 
stigmas plumose or subaspergilliform. Grain free, falling out or 
retained and dehiscing; pericarp thin, usually swelling in water, 
or the inner layers mucilaginous when wetted, and 
adherent, or the whole pericarp adnate and indistinct; hilum small, 
punctiform, basal; embryo rather large. 
ee or perennials of various habit ; ligules reduced to a ciliate or ciliolate 
anicles contracted to age -like, or more or less open, sometimes extremely 
ie: ’ bpiteelate mostly 4-1 tea ong. 
Species 60-70, chiefly in the tropical and subtropical regions of both 
Gonitaaharag. 
Section 1. KEu-Sporozotus (Stapf). Rhachilla long, not produced. 
Culms from a bea inches to 1 ft. long, very slender, 
ew-n 3 uppermost node sem much below the 
middle ; all the oe a Pe east the culm-blades, 
ow panicle ate, je n divaricate (except 
o. 1. 8. a Deans) . pen Tess than 1 lin. toner, 
rarely 1 lin, (no. 1. S. albicans 
Valve 3-nerved (often very faintly, or 1-nerved in 
. S. festivus), eeurne the glumes: 
set 
Panicle co tracted, somewhat spike-like ; 
blades (1) albicans. 
nicle slp blades obtuse or truncate (2) tenellus. 
Seed not mucilaginous ; pericarp swelling ir 
Rhiaome much branched; branches dis- 
net; blades subulate; panicle dicho- 
pecan divaricate, very lax . . (3) acinifolius. 
Compactly cwspitose ; it with a 
coat of fibres — 
> us 
preceding (4) festivus var. 
stuppeus. 
Valve re —_ as long as the upper glume 
Cul n shoots in small fascicles; 
blades “denticulatesmbriate, 4 3-1 in. long (5) discosporus. 
Culm barren shoots from. an oblique 
or "ucaind rhizome ; nea ag margins 
smooth : 
Rhizome creeping; barren shoots very te 
short, cylindric, distinct (6) Ludwigii. 
Rhizome | oblique 5 ; sec shoots much 
(7) ioclados. 
onger mpact tu 
Culms }-2 ft. long, 2-1- pebel slender ; uppermos 
usually much below the mi idle; ; blades agi — 
Pp? 
