DESCRIPTIONS OF TRIBES AND GENERA. 137 



a. Stigmas with short hairlets on all sides (bar- 

 bellate), projecting from the point of the flow- 

 ering-glumes, upon elongated, free styles. 

 I. Spikelets dioecious, solitary, terminal, con- 

 cealed between the leaves. 



204. Monanthochloe. ' ■ 

 II. Spikelets usually in threes, terminal in the 

 axils of stiff, spinescent leaves which pro- 

 ject far beyond them. . . 205. Munroa. 



III. Spikelets in a capitate panicle which is 

 enclosed within the sheath of a bract-like 

 leaf and falls off with it. 209. Urochlsena. 



IV. Spikelets in a capitate or short cylindri- 

 cal panicle which is neither surrounded by 

 a leaf nor deciduous ; the spikelets also 

 (at least their empty glumes) persistent. 

 1°. Lowest spikelet with bracts at the 



base. 



* Empty glumes winged upon the 

 keel ; spikelets very many-flowered. 

 208. Ammochloa. 

 ** Empty glumes not winged, spike- 

 lets 2-6-flowered. . 210. Sesleria. 

 2°. Lowest spikelet without bracts at the 



base 211. Oreochloa. 



V. Spikelets in contracted, spike-like pani- 

 cles, articulated below the empty glumes 

 and falling off one by one. 



212. Pingerhuthia. 

 VI. Spikelets minute in compact, very long, 



lobed panicles whose ultimate branches 

 are subtended by subulate bracts ; spike- 

 lets minute, not deciduous. 



213. Elytrophorus. 

 Note. — Compare Streptogyne, Zeugiles, Schismm. 



/3. Stigmas plumose, relatively short, sessile or 



raised on a short style, emerging from the sides 



of the flowering glume. 



I. Spikelets of two forms, the fertile 1-3-flow- 



ered, surrounded by the sterile consisting 



of many glumes. 



