254 T R I N I и s , 
Spiculae imbricalae, femineae et masculae dlssimiles, ita disposltae, ut unum ple- 
rumque latus spicae spectent: infimorum articulorum omnes masculae vel neu- 
trae; articulorum ulterlorum utraque, femlnea brevisslme, mascula paulo Ion- 
glus pefliccllata: illa iiitra glumas subcoriaceas involutas (Inferior! 5 -, superiori 
3 -nervi) blflora: flosculo inferior! i-valvl, neutre altero blvalvl, longe arlstato, 
femlneo; mascula Intra glumas herbaceas (Inferlori multl-, superiori 3-nervi) 
blflora; flosculo altero i-valvl, neutro, altero blvalvl, stamlulfero, mutico: val- 
vula superiori perbrevl. 
Loclicidae squamae cunealae, emarginatae. 
S/amina 3 . Aniherae lineares. 
Slyli 2. Siigmaia angusto-plumosa. 
St TTi€Tt 9 9 m 9 » 
Heleropogon acumînaluS9 Spiels solltarlls vaglnato-lnvolucralls; Glumis masculis 
acumlnatls, glabrls, medio longltudlnaliler scroblculato-undulatis, Culml no- 
dls follisque glabrls. 
Л . spp. ßrasil. 
Ciilmus (abscissus) vldetur 3 —praesertlm superne erecto-ra- 
mosus: ramls compositls, confertls, subfastiglatls, florlferls, totis vaginalis. 
J-'aginac glabrae, carina Interdum glandnloso-scroblculatae. /o//û lineas 3 —4 
lata, acumlnallsslma, circa llgulam pllls longis adspersa; culmea Inferiora ul- 
Irapedalla; superlora splcas plerumque superantla. Spica in slngulo ramo ter- 
mlnalis vagina Involucrata, cum arlstls suis polllces 5 longa. Flores masculi 
fere polllcares, medio dorso impresslonlbus parvis undulato-scroblculati, scro- 
biculls Interdum in glandulas poriformes mlnlmas abeuntlbus. Spiculae femi¬ 
neae deciduae, arlsta genlculato-inflexa, polllces 3 et quod excedlt longa, hlrta. 
Heleropogon glaher PerS 9 Spiels solltarlls, demum llberls; Glumis masculis acu- 
tlusculis, cum culml nodls follisque glabris. 
Andropogon conlorlum AIL (excil. synn.) 
Andropogon Allionii fVilld. 
