452 CXLIV. GRAMINEZ. 
minute, they are plane very difficult to observe i in the dried state, and have indeed 
observ rati 
ndividuals of each 
— "im ively few species and in very few in : 
roe ems very feinen i have been unable to find the precise nie tay e 
Kun d others of whose accuracy the ere can be no doubt. At any ra 
A. (Primary Series rather than Suborder). edic] « po 
below deg cR Eve with 1 fertile flower, the male or barren flower, $% 
below 
TRIBE Panices. Fertile spikelets with 1 Hor Mr E or pen 
inpas , AA or without a male one below it, Glumes 4 or 8, t per i wer M ife 
2 ily smalle sometimes adhe sap pa Cie pa 
Stamens 3, rarely fewer. Grain enclosed in dened hid ien 
wifone) upper glume and pros Awns rare, and when Vie neither twiste 
Serres I. Spikelets hermaphrodite. 
Inflorescence not bracteate. No bristle-like involuc 
Frui: iin d glume hardened (except in P ursi 
Ac 
E RM: SR one etiem nt). 
n 
Spike not Ae pee goes at the base. Flowering i pees ale 
8 iot bru; a alo annulus or cup at the base. 
s ume with a point aid, tawn . 2. ERIOCHLOA. 
Glumes 2 
Meter ume Shorter than the others, often REPE it tai 
Outer E RS long a: 4. Orcinus, 
sag ms surrounded by or ee DR ith abortive 
ches of the panicle, papi ss lobed or bristly 
involucre. iting. glum A 
Spikelets intermixed with long e persistent genie: 
branches, and falling off from them 5, BETARIA, 
Invol "nn 
each enclosing 1 to 3 od and i ap off 
with the: : ce 
Involueres of 3 or 4 unilaterally divided branches . 
completely s MERAS Iha pikelet . . 6. PLAGIOSETUM. 
Involucres of numerous simple or aie bristles - TUR 
completely surrounding the spikelet. . , . 7. PENNIS 
Involucre of i 
eee md ar unding 1 to 3 ius pisi d 
ance of the panicle produced beyond the baso of 
PPR spikelet. Frui glume s ut scari 
80. - 
deo ; sod or Es obs d the slendor drin E zn: 
10. STENOTAPHRUM. 
Vnde s s few Am iden enclosed a the base in n sheath- 
ih idee “a let ssa SR prostrate or divaricate. 
vent monocious in a iud : 
needs Eure CASI 
11. XEROCHLOA- 
12. THUAREA. 
sli ge ee 
