97. GRAMINEA, 371 
Order XCVII. GRAMINEA. 
F. perfect or unisexual, 1, 2 or more seated on a common axis 
which is contained within an involucre of | or 2 valves (glumes) 
or rarely wanting, the whole forming a locusta or spikelet. Each 
fl. of 1 or 2 scales (pales) of which the outer or lower is simple 
and usually keeled, the inner with 2 nerves or keels. Hypogy- 
nous scales 2, 3, or none. Stam. hypogynous, 1—6. Anth. ver- 
satile, notched at both ends. Ovary l-celled. Styles usually 2, 
rarely 1 or 3. Embryo on the outside of the albumen and at its 
base.—L., with split sheaths. 
Tribe I. PANICEAS. Spikelets dorsally compressed, 1-flowered 
or with 1 fl. and an inferior rudiment resembling a third 
glume or a neuter flower. Glumes 2, unequal, the lower 
often very small. Styles elongated. Stigmas feathery. 
1. Dierrarta. Spikes fingered. Spikelets in 2 rows on one 
side of a flattened rachis, unarmed, 1-flowered with an in- 
ferior rudiment. Glumes 2, lower very small, upper 3- 
nerved. Sterile fl. of one 5—7-nerved pale, resembling the 
upper glume and equalling the flower. 
2. EcHINOcHLOA, Spikes compound, secund in the whole 
and in each part. Spikelets on one side of a flattened rachis, 
2-flowered, inferior fl. rudimentary. Glumes 2, lower small, 
3-nerved, upper equalling fi. 5-nerved mucronate. Outer 
pale of sterile fl. resembling and equalling upper glume. 
3. Seraria. Spike cylindrical, compound. Spikelets sur- 
rounded by an involucre of bristles, 2-flowered, inferior fl. 
rudimentary. Glumes 2, lower small 3-nerved, upper equal- 
ling fl. many-nerved. Sterile fl. of 1 pale resembling the 
upper glume. 
Tr. IL. PHALARIDE. Spikelets laterally compressed, 1- 
flowered, with 1 or 2 or more below resembling the glumes. 
Styles long. Stigmas filiform, protruded from the summit 
of the spikelet. 
4. PHauarts. Glumes 2, navicular, carinate, membranaceous, 
nearly equal, exceeding the flower. Pales coriaceous, un- 
equal, closely investing the fruit. Rudimentary fl. 1—2, 
each consisting of a single scale. 
1 Nearly all the genera of this Order are beautifully figured in the 
Gen. Fl. Germ. Monocotyl. vol. i. In the 2nd edition of Reichenbach’s 
Icon. Fl. Ger. vol. i. (Agrostographia), the numbering of the figures is 
altered totally from that of his edition 1; I have thought it better there- 
fore to omit specific reference to it. 
