MANUAL OF THE GRASSES OF THE WEST INDIES 301 
8. Ichnanthus leiocarpus (Spreng.) Kunth, Rév. Gram. 1: Sup. X. 
1830. 
Panicum leiocarpon Spreng., Neu. Entd. 1: 243. 1820. Brazil. 
Culms 1 to 2 m tall, pubescent; sheaths villous or lanate; ligule a 
ciliate membrane, the hairs 1 to 2 mm long; blades narrowly lanceolate, 
10 to 20 cm long, 1 to 3 cm wide, pilose on both surfaces; panicle large 
and open, about 30 cm long, obovoid, the axis villous below, scabrous 
above, the branches spreading, pubescent at base, these and the 
branchlets somewhat flexuous; spikelets about 4 mm long, glabrous; 
first glume about half as long as spikelet; fruit narrow, brownish, 3 
mm long, the appendages about 1 mm long (fig. 289). 
Wooded slopes, Trinidad to Brazil. 
TRINIDAD: Without locality, Bot. Gard. Herb. 3318. 
9. Ichnanthus ichnodes (Griseb.) Hitchc. and Chase, Contrib. U. S. 
Natl lerb: 18: 335. 19178 
Panicum ichnodes Griseb., Fl. Brit. 
W. Ind. 551. 1864. Trinidad. 
Ichnanthus trinitensis Mez, Repert. 
SpeaNows wed de: 15: 130.5, 1918. 
Trinidad. 
Erect from a somewhat decumbent 
base, bearing short knotty, rhizomes 
and forming colonies; culms 1 to 2 m 
tall, glabrous, or sparingly villous below; 
sheaths keeled, the lower overlapping, 
glabrous or sparsely villous, densely 
villous on the margin and on the collar; 
ligule about 1 mm long; blades narrowly 
lanceolate to linear, the lower as much 
as 30 cm long, 1 to 2 cm wide, narrowed 
below, scabrous, sometimes sparsely vil- 
lous, densely villous above near base; FIGURE 289.—Ichnanthus leiocarpus. 
panicle oblong, as much as 30 cm long, SIDES ONE BOI XS AY one De 
the branches fascicled or branched at 
base, finally spreading; spikelets blunt, about 2.5 mm long; first glume 
more than half as long as spikelet, often sparsely villous; second 
glume roughened toward apex; sterile floret often staminate; fruit 2 
mm long, the appendages 0.5 mm long. 
The elongate blades and the Jarge, much-branched, many-flowered 
panicles of blunt spikelets give this species the aspect of a species of 
Panicum, but the appendages at the base of the fertile lemma show 
that the species belongs to Jchnanthus. 
Wood borders in partial shade, Trinidad to Brazil. 
TRINIDAD: St. Joseph, Hitchcock 10178, 10179, 10191. Port-of- 
Spain, Hitchcock 9999 (Amer. Gr. Nat. Herb. 586), 10003 (Amer. Gr. 
Nat. Herb. 587); Bot. Gard. Herb. 3182; Broadway 5060. Piarco 
Savanna, Hitchcock 10357. Pitch Lake, Bot. Gard. Herb. 2299. 
Without locality, Crueger 77. 
