ANDROPOGON. ANDROPOGONEA (AUCT. EDUARDO HACKEL). CAMS 
Subgenus 12. HETEROPOGON. 
Endl. Gen. pl. p. 108; Heteropogon (genus) Pers. Synops. 2, p. 533; 
Benth. et Hook. Gen. 3, p. 1133 
Racemi subeompositi in apice culmi ramorumve solitarii, multi- 
(raro tantum 6—8-) artieulati, articulis linearibus, filiformibus, dorso 
subconvexis, sine sulco, inter spiculas superiores ciliatis et obliquis- 
sime disjungentibus, inter inferiores sspius glabris recteque disjun- - 
gentibus. Spicularum paria 1—15 inferiora homogama, c? v. neutra, 
mutica, alternantia nee verticillata. Spicule sessiles parium supe- 
riorum 9 v. 9, subeylindriez, aristat@: gluma I" marginibus invo- 
luta, raro superne angustissime implicata; II^ obtuse v. obsolete 
carinata, mutica ; III* hyalina; IV* stipitiformis, basi hyalina, dein 
incrassata, sensim in aristam perfectam abiens. Palea O. v. parva. 
Lodicule glabrae. Stamina 3, antheris sepius minutis effeetis. Ova- 
rium glabrum. Stigmata elongato-linearia, stylos duplo superantia, 
infra apicem v. prope medium spicule exserta. Caryopsis lineari- 
oblonga v. oblonga, a dorso leviter compressa, facie hili convexula, 
embryone caryopseos medium subsuperante, scutello oblongo. Spiculze 
pedicellat® a sessilibus Q forma valde discrepantes, mutiez, c v. 
neutrze, sepius imbricatze et sessiles angustiores tegentes. 
Gramina szpius angustifolia, per utriusque orbis regiones cali- 
diores late dispersa, racemis densifloris, subeylindrieis, spiculis dense 
imbricatis rhachi appressis ita ut Q in frontem, g in tergum racemi 
spectent, aristis totius racemi swpe inter se contortis insignia. — 
Culmi vaginarumque nodi glabri. Spieule c? in speciebus genuinis 
herbacez, subtortze. 
8 1. Ligula membranacea, sepe breviter ciliolata. Aristæ columna. 
tota superficie æqualiter rufo-v. albo-hirtula. Callus glumæ Tr i in 
spieulis 8 pungens (n. 144—147). 
A. Spicule 3 v. Q demum atrofuscæ, cartilagineg v. coriacee, callo curvato 
rufo-barbato. Spicularum C' pedicelli glabri. — Culmi erecti, robusti, - 
firmi, subcompressi, szepius e nodis superioribus ramos floriferos elon- 
gatos subfastigiatos agentes, raro subsimplices, Spicula 8 v. Ọ lineari- 
oblongz, subeylindrice : gluma Im“ truncata, fulvo- v. rufo-hirtula, 
marginibus valde involuta; II I*" æquans, lineari-oblonga, juxta cari- 
