CXLIV. GRAMINER. 453 
Spikelets dicecious, in dense heads. . . . . . . . 18. SPINIFEX. 
Tripe II. Andropogonesm. Fertile spikelets with 1 terminal Minen Amie ay 
` female flower, with or without a male one Ay Ri it. Glumes 4 or rarely Jen Se e of the 
outer ones the largest enclosing the fruit, the third smaller thin and Ayaline sometimes 
wanting, the upper or bee ing one very thin and hyaline, often bearing & twisted and 
bent awn. palea v each flower sometimes very small or deficient in the fertile flower. 
Stamens 3, rarely fewe 
when present i is terminal or between the notches of the flowering glume 
in all atdot Arthraxon.) 
E I. Zoysieæ. Spikelets solitary or rarely in abet p^ : e A. jose 
"y rou oy the inarticulate ie ue a rt adn spike or the 
Jlowering glume, none or strai outer 
dq — in notches v an ihe a oy 
Glum: 
kic UI Zo Yai; 
Spikelets 2. "de 3 or Y together on ve ery s rt pedi- 
Glumes u usually 3, the larger one schinai, a 
sd ion ae 80 metimes wanting and a.small 
hyaline fl 15. LarPAcO. 
Spikelets i in A tie. spiko not awned. Glumes 4, the 
outer one the lar - alisen- 16.: NEURACHNE. 
Spikel "b x. : loose pe or. raceme, very. narrow. 
Glumes 3, the 2 outer ones with straight awns. . 17. Psroris. 
HE IL Rotthoelliex. Spikelets awnless, in pairs or rarely solitary ni in 
alternate notehes e ~ arron rhachis of a simple siihe one sessile fertile and more 
less embedded i. 
d in a cavity of the rhachis, the other ge ella 
Tes dene es a airy. Outer glume of ie es 
. Spikelet 2-lobed, Pedicellate pipelai barr . 18. ELIONURUS. 
Spike. 1-sided, er UR scarcely articulate. Po dicel- 
late spikelet b . 19. HEMARTERIA. 
zug 1- ie Outer co ume of the sessile spikelet hard 
ular, Pedicellate spikelet barr . . 20. Mantsuris. 
Spiko z many cylindrical. - No p 21. OPHIURUS. 
Spik aps Pandas al. Pedicellate sitae desk 
22. RoTTBOELLIA. 
(See s de uA species of 25, IscuEMCM. i 
Susrrree III. Mayadec. - Spikelets unisezual, the male usually paniculate, the 
females Apa. at the base of the pi or in a separ rate inflorescence 
rui OM below the = the fruiting glume 
smooth an 23. .CHIONACHNE. 
` (The, ha fola, Maize, Zea Ways poe to this subtribe. i 
Susme IV. Eua paapa Ma exces in ee or T rarely solitary, one 
iar and fertile and one or two and male neuter or rudimentary, rarely 
sm nan mae Flowering glume = ene pads dien usually awned or reduced to 
row ‘sy! Aa deficient i in Imperata, in Ischemum pectinatum, and — minute 
oF deficien ome varieties of other pem) 
Spike on in pairs along one side of a simple «mg or 
the spikelike b ranches of a simple panic 
Spike singlo. Spikelets unisexual, the awned fom es 
turned ne side, the awnless males imbricate 
them « 24. HzrEROPOGON. 
Spikes single o: r digitate ‘Sessile spikelet v with a 
male ya below the fertile on 25. ISCHÆMUM, 
