e 
c 
m 
CXLIV. GRAMINE. 
Spikelets not ein —— 4, membranous, the 
ute small 40. PorAwoPHiLA. 
Stamens 6 or a uy — 3or9. 2 persistent glumes 
below the articulat 
Stamens 6, za 3. “Spikelets usually pening 
wned or un 41, EHRHARTA. 
We 4, pelts 2. Spikelets paniculato, more or 
less awned " 42. MicROLENA. 
Stamens 4. Spikelets not awned . 43. 'TETRARHENA. 
gd 3 rarely 2. Glumes 3, none below the articu- 
Fa ream fem awned. Panicle dense, cylindrical, 
spikelike 44, ALOPECURUS. 
8 mens 8, rare y 2 :2 persistent ‘glumes ee ‘the 
articulation, 2 inner o enclos 5. 
intermediate ones sm r enclo ie P de VES 
p €: n ek oie. Spikelets very flat. Intermedia 
nawned, empty or one deficient. 45. PHALARIS, 
oH m spikelike.” APERI, uut Intermediate 
glumes uis empty, 46. ANTHOXANTHUM. 
flowers vid 2-naf ied p 47. HrEROCHLOE, 
E V. AQ Pap ser tg ikelets with 1, 2, or rarely several hermaphrodite “teak: 
and r rarely a ma r below. Flowering glume usually bearing an a 
twisted in es lower NC fuese or divided fw An piddle, Palea 2-nerved, usually t a 
or small, i VT Avenacee as large a. estut: 
(The a eiu or Fest in a few species of Agrostis and, 
Devin th ihe Mera, pe below the branches very short or obsolete in one section 
rist 
SuBrRIBE I. Stipacese.—Spikelets 1-flowered. Awn terminal, tap or 3-branched. 
Lodicules 3. Fruiting glume usually narrow, hardene d, enclosing the gr. 
Awn 3-branched Wee Us petens 
Awn simple; at length articulate on the glum . 49. Srrea. 
Awn simple, continuous with the point of the ier . 50. STREPTACHNE, 
Bun Pic stideze. "n. i kelets l- ed. Awn either terminal between 
Agrosti — n elets 1-flowere wn 
she lobes bof th lume or dorsal, in a few species very small or deficient. Lodicules 2. 
Fruiting p enclosing the. pos usually ‘thin. 
Lobes 2 on each side of the awn. Panicle branched 51, PeNTAPOGON. 
Lobes 1 on each side of — flexed awn. Spikelets 
52. DIPLOPOGON. 
in e Sir eg etse Be 
Awn mor er i i ute or deficient. 
No bris ti hi 
Awn fine and near tho tip of the glume. Palea 
ore than half as long as the glume . . . 53. DicHELACHNB. 
ea not half 
minute or none 54, ÁGROSTIS. 
or bristle beyond the flower or bearing an empty 
i n us. eae half as 
long as the glume , . . . Vou cy 55. DEYEUXIA.- 
Supreme III. Avenaceze.—Spikelets with. 2 or in E e ra —— 2 
Perfect flowers (only 1 in Anisopogon), the 
