MANUAL OF THE GRASSES OF THE WEST INDIES 33 I 
E. crus-pavonis it is usually short, not more than 1 cm in length. The 
most noticeable difference is the soft nodding panicle of F. crus- 
pavonis as compared with the stiffer erect panicle (unless large and 
heavy) of E. crusgalli. The spikelets of EH. crusgalli are usually 
conspicuously papillose-hispid. In #. crus-pavonis the spikelets are 
more or less hispid but the strong hairs on the nerves are less con- 
spicuous. The following specimens have been referred to /. crusgalli. 
Brermupa: Brown, Britton, and Bisset 1961. 
Cusa: Batabané, Léon 13447. 
Haiti: Manneville, Ekman H 3061. 
89. CHAETIUM Nees, Agrost. Bras. 269. 1829 
Spikelets short-pediceled, dorsally compressed, lanceolate, the 
joint of the rachilla between the glumes elongate, the bearded base 
of the first glume adnate to it, forming a long slender callus; glumes 
bearing awns 3 to 4 times the length of the body of the spikelet, the 
first reduced to the awn or the pair broadened and enclosing the rest 
of the spikelet; sterile lemma bearing a shorter awn or awn-tipped 
only; fruit subindurate, lanceolate, “the lemma acuminate into a 
scabrous awn or point, the thin margins flat, the summit of the 
palea not enclosed. Perennials with long narrow blades and dense 
narrow panicles. 
1. Chaetium cubanum (Wright) Hitche., Contrib. U. S. Natl. Herb. 
Peo el OOO: 
Perotis? cubana Wright, Ann. Acad. Cien. Habana 8: 288. 1871. 
Cuba, Wright 735. 
Culms tufted, stiffty erect, 40 to 60 cm tall; blades flat or loosely 
involute, 5 to 10 cm long, 1 to 4 mm wide, puberulent on the upper 
surface; panicles narrow, few-flowered, 4 to 7 cm long, the branches 
appressed; spikelets about 6 mm long, the fertile lemma about 
4.5 mm long (fig. 303). 
Dry hills, Cuba. 
Cupa: Canasi, Léon 13074; Ekman 16474. El Cobre, Ekman 
15699, in 1922 (Amer. Gr. Nat. Herb. 796). Eastern Cuba, Wright 
735. Motembo, Ekman 16827. 
90. TRICHOLAENA Schrad.; Schult., Mant. 2: 163. 1824 
Spikelets on short capillary pedicels; first glume minute; second 
glume and sterile lemma equal, raised on a stipe above the first glume, 
emarginate or slightly lobed, short-awned, covered, except toward 
the apex, with long silky hairs, the palea of the sterile lemma well 
developed, fertile Jemma shorter than the spikelet, cartilaginous, 
smooth, boat-shaped, obtuse, the margins thin, not inrolled, the 
palea not enclosed. Perennials or annuals with rather open panicles 
of silky spikelets. 
1. Tricholaena repens (Willd.) Hitche. NATAL GRASS. 
Saccharum repens Willd., Sp. Pl. 1: 322. 1797. ‘‘Guinea.” 
Tricholaena rosea Nees, “Cat. Sem. Hort. Vratisl. a. 13367) PE 
Afr. Austr. 1: 17. 1841. South Africa. 
Rhynchelytrum roseum Stapf and Hubb.; Bews, World’s Grasses 
223. 1929. 
Rhynchelytrum repens C. E. Hubb., Kew Bull. Misc. Inf. 1934: 
cLO-- S£934. 
