Festuceo.] CO. . GRAMINE. li77 
stigmatibus plumosis. Caryopsis . . .— Gramina perennia, foliis angustissimis convoluto- 
ierelibus v. basi planis. Panicula tenuis, parum. ramosa, spiculis breviter pedicellatis 
eroctiusculis. : 
Species 9; boreali-Americanze (Uralepis cornula, Ell., et U. purpurea, Nutt.). 
Tyiplasis setàcea, Griseb. Pl. Lorentz, est Diplachne spicata, Dodll. 
204. Scleropogon, Philippi, Sert. Mendoc. ii. 47. - (Lesourdia, Fourn. in Bull. Soc. Bot. 
Fr. xxvii. 102, t. 3, 4.)—Spicule wunisexuales, 2-oo-flore, in panicula angusta paueze, 
rhachilla utriusque sexus elongata. Spicule d'co-flore, rhachilla inarticulata glabra. 
Glumnsé paleacec, anguste, acutze, exaristatz, 3-nerves, 2 inferiores vacua paullo minóres 
insqualesque ; florentes interdum apice minute 3-dentatz, dente medio mucroniformi ; 
palea angüsta, rigida, glum:e subzequalis, 2-carinata, 2-dentata. Stamina 3. Ovarii rudi- 
mentum 0. 'Spiculme Q basi 1-«o-floree, superne steriles, rhachilla sub floribus articulata 
stipitiformi pubescente, inter glumas steriles continua. Glum:e 2 inferiores vacu:e, persis- 
ientés, valde inzquales, quam in spiculis d majores ; florentes co, rigidie, angusto, circa 
florem: convolutz, costis 3 in aristas longissimas tenues rigidas swpe subtortas productis, 
additis lobis brevibus lanceolatis hyalinis ad latera aristarum lateralium v. inter aristas ; 
summie steriles florentibus similes nisi tenuiores v. ad aristas tenues reductze ; palea, 
rigidula, angustissima, gluma florente inclusa. Staminodia 0... Styli distincti, elongati, 
stigmatibus pilis brevibus subplumosis. Caryopsis angusta, elongata, gluma inclusa, 
libera.—Gramina perennia, c:espitosa v. repentia, basi ramosa v. stolonifera. XPanicula 
stricta, parum breviterque ramulosa. Spicule paucs, erect, maseule et foeminese 
aspectu diversissims, in caulibus v. in plantis diversis v. in eodem pedunculo mixt:e 
dissitzeque fere alternz. 
Species 4, quarum una Chilensis, cztere regionis Mexieano- Texance incole. 
205. Eremochloe, S. Wats. Bot. King Exped. 382, t. 40.—Spiculze 1-florze, in panicula 
brevi densa confertze, rhachilla supra glumas inferiores articulata longe pilosa ultra florem 
in stipitem glumiferum producta, flore hermaphrodito. Glum:e 2 inferiores vacuse, sub. 
articulati persistentes v. sigillatim decidus, carinatse, acute, membranace:s, sub- 
scariose, preter carinam enerves, subzquales, 2 sequentes vacui, fertili arcte appressee, 
3-nerves, 3-fid:e, lobo medio aristiformi v. basi parum dilatato, lateralibus hyalinis denti- 
culatis mucronatis v. breviter aristatis ; florens inter illas sessilis, basi longe pilosa, carinata, 
fere hyalina, lobis 3 subrequalibus in aristas desinentibus ; gluma summa vacua, anguste 
S3-partita, quasi ex aristis 3 constans; palea p plicato-2-carinata, sspe 
9:partita. Stamina 3. Styli distincti, stigmatibus plumosis. Caryopsis teres v. à dorso 
leviter p palea glumisq! inclusa, libera.—Gramina humilia, perennia, ramosa, 
foliis confertis brevibus rigidis convolutis, superioribus in caule brevi 2-3 longe vaginatis. 
Panicula'paucispieulata, e vagina folii summi vix exserta, pilis mollibus nitens. 
Species 2, Novo-Mexicanre, et Cali 
206. "Triraphis, R. Br. Prod. 185.— Spicule cc-flors, secus ramulos panicule angusto 
subfasciculatz, rhachilla inter flores articulata, floribus hermaphroditis v. summo maseulo 
v. rudimentario, Glum:ze 2 inferiores vacuse, persistentes, angustw, 1-3-nerves, acutze 
v. inueronates, extima integerrima, secunda paullo longior, interdum ad latera i 
minute déntata; florentes 3-co-nerves, apice 3-lobs, lobis a basi plana in aristas rectas 
rigidas productis, intermedia longiore, additis interdum lobis b is brevibus inter 
aristas v. ad latera exteriorum ; palea brevior, inclusa, juxta margines 2-carinata, ssepius 
2.dentafa. ' Staminà 3. * Styli distincti, stigmatibus plumosis. Caryopsis oblonga, gluma 
indurafa v. membranacea inclusá, libera,—Gramina perennia, foliis &ngustis subulato- 
inatis'v. a basi luto-teretib Panicula angusta, nupe densissima mollisque, 
nune laxior sepe valde elongata, spiculis erectis. ' : 
Spéeies 5 v. 6, quarum una adhue inedita Afric austzalis incola, cetero ommes Australiance. 
Benth. Fl. Austral. vii. 603, 
Genü&' quoad panieulam et gl lobos pol pha. In T. iolli, Br,, panicula mollissima, 
