506 GRAMINACEAE. [ Stenotaphrum. 
72. C. echinatus, L.— Kunth, Enum. Pl. I, 166. ~ Annual, sin ft. on 
? 
the stem geniculate peste leafy to the top. Leaves plane, 3—4” broad, 
scabrous on the margins, pubescent on blade and ani sie ited 
Spike 3—4‘ long. eevslcubes crowded, srlinesiae cup-shaped, 3” long, 
irregularly split to near the base into 8—10 acute, mostly hispid lobes 
armed outside with spines which decrease downward to bristles and 
hairlets. Spikelets 3—6 in each involucre, ovoid, 3 long, glabrous. 
Lowest glume !/3, second 2/2 the length of the siitkalck 3—5-nerved; third 
glume as long as the fertile floret, 5—7-nerved, with often a palea of equal 
length and then staminate. Fertile ont couaeites, 5-nerved; its palea 
2-nerved. — Griseb. Fl. W. Ind. p. 
ur form belongs to the var. «& “ Grisebach. The sagan rap ah hig in an involucre 
are not all: ioe aa only one or two as ns ang a lowest glume, while the palea 
and rte mens gh shod glume are found only in the la ones. 
€ species, wh the iiiatiechook of Ronstat in 1867, is common 
in sores pared sea Asia’ and Africa. 
7. STENOTAPHRUM, Trin. 
Spikelets awnless, 2-flowered, with the lower or anterior floret male, 
in short spikes imbedded in veney enone of a thickened, flat or cylindrical, 
articulate or continuous rhachis. Glumes 4 or 3, the lowest (anterior) very 
minute or wanting, the second thinner than the subcoriaceous flowering 
One the paleae of the latter fally developed and enfolding with thinner 
ar 
in the upper half, protruding from the apex of the floret. — Long creeping 
stoloniferous grasses with distichous flat leaves. 
enus of 4 or 5 species, diffused over the tropics of both Worlds. 
1.8. ee Schrank, in Hort. Monac. tab. 98. — Kunth, Enum. P1.I, 
138. A creeping, much branching grass, glabrous throughout, the 
ascending beset 6—18‘ long, with 4—8 pairs of leaves, Leaves sub- 
opposite and equitant (except in the uppermost nodes of the fertile 
branches), pale glaucous, thick carta us, the blades about 3“ wide and 
4—1’ long (the uppermost shorter than their sheaths), plane or plicate, 
smooth at the edges, obtuse or shila truncate, suddenly contracted, 
almost stipitate at the base and diverging at a right angle from their 
sheaths, which are open to the base and compressed with a sharp keel. 
e short-ciliate. Spike-like panicle terminal, sometimes with 1 or 
2 smaller axillary ones, the rhachis complanate, 2—3‘ long and 2—2!/2 
broad, excavated on one face for the reception of the short branchlets, 
r 
yee em. ay 
Jets alternate in two rows, 2?/2—3}/2" ak: thick angular, each 
with 2 (rarely 3) i one sessile near the base, the other near the 
. 
