96 



FIG. 72. Danthonia compressa Austin. TENNESSEE OAT-GRASS.— a, A 

 spikelet; b, 1st empty glume; c, 2d empty glume; d, dorsal view of flowering 

 glume; e, anterior view of same, showing palea; /, palea. Other species of Dan- 

 thonia are illustrated by figs. 168 and 170 in Bui. 7. 



72. DANTHONIA DC. in DC. and Lam. Fl. Franc, ed. 3. 3 : 32. 1805. Spike- 

 lets several-flowered, uppermost flower imperfect or rudimentary, rachilla 

 articulated above the empty glumes. Empty glumes 2, much exceeding the 

 flowering glumes, which are rounded on the back, 2-toothed or bifid at the 

 apex, and awned between the teeth; awn formed by the extension of the 3 mid- 

 dle nerves of the glume. Inflorescence a simple, spreading or narrow panicle. 



Species about 100, in the temperate and warmer regions of both hemispheres, 

 especially numerous in South Africa. North American species, 6 or 7. 



