Panicearum genera ac species aliter disposita. IV. 181 
as in H, aturensis. The only collection of this of which we know other 
than that in the Trinius Herbarium is Glaziou 22470 from Brazil. 
Seutachne Hitchc. & Chase, I. c., p. 148. — Inflorescentia pani- 
culata; spiculae breviter pedicellatae secus paniculae ramos teneros sub- 
simplices dispositae, fusiformes, acuminatae, basi attenuatae, rachilla 
cum internodiis elongatis; gluma prima internodio rachillae imo stipiti- 
formi adnata, quam spicula dimidio brevior, membranacea, marginibus 
basin versus connatis; gluma secunda lemmaque sterile subaequilongae, 
internodio rachillae manifesto separata, coriacea indurata fusca, 5-nervia; 
lemma sterile palea et interdum staminibus praeditum; fructus quam 
gluma secunda lemmateque sterili, vix induratior, circumscriptione ellip- 
tieus, lemmate in mucronem pubescentem abrupte angustato, marginibus 
basin versus leviter involutis, sursum planis pubescentibus, parte paleae 
summa haud inclusa, margine dense pubescente. — Herbae perennes, 
tenues, culmis simplicibus, laminis linearibus, planis, et paniculis an- 
gustis. — Nomen a ex/ro; corium vel pellis, et £z»; palea. — Inflores- 
cence paniculate, the spikelets short-pediceled along the slender, simple 
or nearly simple branches; spikelets fusiform, acuminate, the base atte- 
nuate, the internodes of the rachilla elongated, the lowermost forming a 
Stipe, the first glume adnate to it; first glume membranaceous, about 
half the length of the spikelet, broad, the margins connate below; second 
glume and sterile lemmma subequal, a manifest internode of the rachilla 
between them, leathery-indurated, brown or brownish, 5-nerved the 
lemma enclosing a palea of similar texture (and in the type species a 
staminate flower); fruit but slightly more indurated than the second 
glume and sterile lemma. elliptical in outline, the lemma abruptly acu- 
minate into a slender, densely pubescent tip, the margins slightly in- 
rolled below, membranaceous, flat and pubescent above, the summit of 
the palea not enclosed, densely pubescent on the margin. — Slender 
perennials, with simple culms, linear, flat leaves and narrow panicles; 
known only from Cuba. Name from sxıros, leather and y», scale. — 
Type Panicum durum Griseb. — Scutachne differs from other genera of 
this tribe in having a second glume and sterile lemma leathery-indurated 
and nearly as firm as the fruit. Bluffia eckloniana Nees (which is re- 
ferable to Alloteropsis) and Alloteropsis semialata (R. Br.) Hitchc., especi- 
ally the first, have sterile lemmas subindurated like their fruits but the 
two glumes are similar. The subindurated, mucronate fruit, the lemma 
margins membranaceous and flat above, the palea free at the summit, 
further differentiate Scutachne from Panicum. 
52. Scutachne dura (Griseb.) Hitchc. & Chase, l. c., p. 149, fig. 13. 
— Panicum durum Griseb., Mem. Amer. Acad. n. ser., 8; 533, 1862. This 
Was published in Plantae Wrightianae e Cuba orientali; the only 
citation given is „(1539)“. The type specimen is in the Grisebach 
Herbarium. 
53. Seutachne amphistemon (Wright) Hitche, & Chase, l c. p. 149. 
— Panicum amphistemon Wright, Anal. Acad. Cienc. Habana, 8; 207, 1871. 
