454 CXLIV. GRAMINEZ. 
ipu — Spikelets 1-flowered, solitary in the 
26. DIMERIA, 
sies digitate, ‘Spikelets 1-flowered with a barr 
cel in the same notch. Awn dorsal near tho 
27. ARTHRAXON. 
Spikes digitate. Spikelets i in pairs, both 1- ‘lowered 
and usually fertile. 28. POLLINIA. 
Wee siad digitate or several nearly sessile on a 
simple rhachis. € = spikelet 1-flowered and 
fertile, mra iah e male or neuter 29. ANDROPOGON. 
Spikelets in single or rsd p pairs or triplets on the slender 
branches of a more or less compound panic 
ise long and dies; déuilly “yinin x the 
pikelets awnless, concealed under m mug 
hair 30. IMPERATA. 
Panicleloose. Fertile spikelets awned, 
S i glume either membranous or narrow and 
eden ith 2 prominent often muricate aaa) 
31. CHRYSOPOGON. 
Outer T when n in fruit hard, smooth and shin- 
ovate or lanceolate . 32. SoRGHUM. 
Spikelets in triplets Po 3 asl 1 4 
cellate and malo neuter or rudimentary) Min 
Shea ing 
Triplets sachs by an involucre of 4 male or 
neuter spikelets at the base of the peduncle . . 83, ANTHISTIRIA- 
Triplets sessile or pedunculate within the bract 
without any involucre , . 84, APLUDA. 
SUBTRIBE V, Tristegineæ. Spikelets, panicats, all similar, the ge vert 
ing sides more or less fend or enlarged when in fruit almost as in Panicee 
awn twisted and bent as i A 
Lm 4, 2 empty, the ids with a male flower or 
mpty. Panicle loo . 95. ARUNDINELLA. 
Glumes 3, 2 empty. Panicle dense and ' spikelike -13 porron: 
same 
Tre II, Olyr Spikele i unisexual, th n 
ee eigo 3, the flow see large, membranous or orden ned enclosing her y y 
A palea to the flower. Stamens 6 ve: in ewe not Australian 3). Styles um 
base or or high up. Stigmas EE. 
xime glume Covers gba, with a — 
orifice. erem Stigmas 3 37. LzPTASP! apikelet 
B. Poac icels not ce below - nes Rhachis oy the » he api or 
articulate M Peng ar 3 lowest glumes, or wholl: wtinuows, Spikelets Porter them. 
more fertile flowers, the males or imperfect ones if me pese or very “rarely 
Un a few Phalaridee the lower glumes deficient). 
arely 
Trine IV. Phalarides. Spikelets with 1 terminal hermaphrodite flow perm 
2 male flowers lower down. Glumes 2 to 6 all keeled or with a jak amer uhr the ar- 
Preig je of the: rhachis persistent or in several genera deficient, A s rfe 
iculation, o 
nerve 
(In Phalari, is itself the upper glume is a Suid pete the central 
represented by a line of E s " = 
narco 6, rarely 3. No glumes below the articula- 
n. 
Ns V flat Glumes 2 without any small Taisit 
Spikelets very flat. Glumes 4, the 2 outer very small 39. OnxzA- 
