372 97. GRAMINER. 
5. ANTHOXANTHUM. Glumes 2, unequal, membranous, lower 
small l-nerved, upper exceeding the fl. 3-nerved. _Pales 
scarious. Stam. 2. Rudimentary fl. 2, each consisting of 
a single notched scale awned on the back. 
(6. Hierocuior. Glumes 2, nearly equal, membranous, 
about equalling the flowers. Fl. 3; 2 lower male, 3-an- 
drous, upper pale with 2 keels; upper herm., 2-androus, 
upper pale with 1 keel.] 
Tr. Ul. PHLEINE4. Spikelets laterally compressed, 1- 
flowered or with a superior rudiment. Glumes nearly equal. 
Styles and stigmas as in Tr. II. Inflorescence a spikelike 
panicle. 
7. Puteum. Glumes parallel at the midrib truncate with a 
terminal seta or acute. Fl.1. Pales 2, membranous, lower 
3-nerved obtuse, without awns, or with a minute central 
point. 
8. ALoprecurus. Glumes membranous, acute (in 4. genicu- 
latus blunt). Fl. 1. Pale 1, scarious, 5-nerved, awned on 
the back, the margins usually connected below. “Styles 
usually combined.” 
9. Knappra. Inflorescence a somewhat \-sided raceme. 
Glumes not keeled, blunt. Fl. 1. Pale 1, scarious, very 
hairy, obtuse, not awned. 
Tr. IV. AGROSTIDE. Spikelets and glumes as in Tr. III. 
Stigmas sessile or nearly so. Inflorescence panicled.—Glunes 
unequal in Apera. 
10. Gasrripium. Glumes membranous, acute, unarmed, 
ventricose at the base, much exceeding the flower. Fl. 1. 
Pales 2, membranous ; lower truncate or toothed at the end, 
with or without a dorsal awn. 
11. Potypocon. Glumes scarious, nearly equal, each fur- 
nished with « long seta from just below the emarginate sum- 
mit. Pales falling short of the glumes, outer usually awned 
from below the summit. 
12. Mitium. Glumes membranous, nearly equal, unarmed. 
Pales 2, nearly equal, unarmed, about equalling the glumes, 
hardening on the fruit. Spikelets convex on the back, or 
slightly dorsally compressed. 
13. AGrostis. Glumes membranous acute, unarmed, the 
upper one smaller. Pales unequal, scarious, with or without 
a dorsal awn, falling short of the glumes. Seed free.—IJn 
A. canina the immer pale is wanting. 
