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. 2O9. 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. . 21O. 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. Fingerhuthia. 

 YI. 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, Zeugites, Schismus. 



/?. 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. 



