148 Chase — Notes on Genera of Panicese. TV. 



small, but prominent" it seems probable that Bentham had some other 

 species under this name. The fertile lemmas in the spikelets of this 

 species in the Trinius Herbarium are not at all auricled nor are the spike- 

 lets, with their villi >us-margined second glumes and villous sterile lemmas, 

 suggestive of Ichnanthus. Both Trinius and Doell note the affinity of this 

 species to Panicum aturense. 



Homolepis longispicula differs from both the other species of this genus 

 in having a densely silky-villous margin to the second glume, and a 

 staminate flower in the first floret. The sterile (or staminate) lemma is 

 densely villous, the fruit but little indurated as in H. aturensis. The only 

 collection of this of which we know other than that in the Trinius Her- 

 barium is Glaziou 22470 from Brazil. 



23. Genus SCUTACHNE Hitchc. & Chase gen. nov. 



Inflorescentia paniculata ; spiculae breviter pedicellatae secus paniculae 

 ramos teneros subsimphces dispositae, fusiformes, acuminatae, basi atten- 

 uatae, rachilla cum internodiis elongatis; gluma prima internodio 

 rachillae imo stipitiformi adnata, quam spicula dimidio brevior, mem- 

 branacea, 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 indura- 

 tior, circumscriptione ellipticus, 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 angustis. 



Nomen a o-kvtos corium vel pellis, et ax»"7 palea. 



Inflorescence paniculate, the spikelets short-pediceled along the slender, 

 simple or nearly simple branches; spikelets fusiform, acuminate, the base 

 attenuate, the internodes of the rachilla elongated, the lowermost form- 

 ing 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 lemma 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 acum- 

 inate into a slender, densely pubescent tip, the margins slightly inrolled 

 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 <tkvtos, leather and ax^v, 

 scale. 



Type Panicum durum Griseb. 



Scutachne differs from other genera of this tribe in having a second 



