92. GRAMINK.E. 
371 
Tribe 1. PANICEyE. Spikelets dorsall;/ compressed, \ -lowered 
or witli 1 H. and an inferior rndinient resembling a third 
glume or a neuter flower. Glumes 2, uiuuiual, the lower 
often veiy small. Styles elongated. Stigmas feathery. 
1. Digitaria. Spikes fingered. Sjjikelcts in 2 rows on one 
side of a flattened raeliis, unarmeil, 1 -flowered with an in- 
ferior rudiment. Glumes 2, lower very small, u])])er 
nerved. Sterile fl. of one 5 — /-nerved pale, resembling the 
upjier glume and equalling the flower. 
2. Echinochloa. S])ikcs compound, secund in the whole 
and in each part. Spikelets on one side of a flattened rachis, 
2- flowcred, inferior fl. rudimentary. Glumes 2, lower small, 
;i-ucrved, upper as long as the fl. b-nerved mucronate. Outer 
jrale of the sterile fl. resembling and equalling the upper 
glume. 
3. Setaria. Spike cylindrical, compound. Spikelets s^ir- 
rounded by an involucre of bristles, 2-flowered, inferior fl. 
rudimentary.. Glumes 2, lower small 3-nerved, upper as 
long as the fl. many-nerved. Sterile fl. of 1 pale resembling 
the uj)j)er glume. 
Tr. II. PHALARIBEJE. Spikelets laterally compressed, I- 
flowercd, with 1 or 2 or more below resembling the glumes. 
Styles long. Stigmas filiform, protruded from the summit 
of the spikelet. 
4. Ph.vlaris. Glumes 2, navicular, carinate, membranaceous, 
nearly equal, longer than the flower. Pales coriaceous, un- 
equal, closely investing the fruit. Rudimentary fl. 1 — 2, 
each consisting of a single scale. 
5. Anthoxanthum. Glumes 2, unequal, membranous, lower 
small 1 -nerved, upper longer than the fl. 3-ner\ ed. Pales 
scarious. Siam. 2. Rudimentary fl. 2, each consisting of 
a single notched scale awned on the back. 
6. IIiEROCHLOE. Glumes 2, nearly equal, membranous, 
about as long as the flowers. Fl. 3 ; 2 lower male, 3-an- 
drous, upper pale with 2 keels; upper herm., 2-androus, 
upper pale with 1 keel. 
'I'r. III. PHLEINE^. Spikelets laterally compressed, 1- 
flowered or with a superior rudiment. Glumes nearly equal. 
Styles and stigmas as in Tr. II. Inflorescence a spikehke 
panicle. 
7. PiiLEUM. Glumes parallel at the midi’ib truncate with a 
terminal seta or acute. Fl. I. Pales 2, membranous, lower 
3- nerved obtuse, without awns, or with a minute central 
point. 
