114 



THE TRUE GRASSES. 



Species two (T. linearis Forsk. and T. quinqueseta 

 Hochst.), in Egypt and Abyssinia. 



142. (118) Diplopogon Brown (Dipogonia Beauv.). 

 False spikes capitate; rachilla not prolonged; palea 

 with two awns ; middle awn of the flowering glumes 

 tendril-like below, recurved above. 



Species one (D. setaceus Brown), in Western Australia. 



143. (144) Pentapogon Brown. Panicles narrow, dense ; 

 rachilla prolonged, pedicel-like ; middle awn of the 



flowering glume dorsal, twisted 

 below, at length geniculate, 

 longer than the four lateral awns. 



Species one (P. Billardieri 

 Brown), in Tasmania and Vic- 

 toria. 



144. (145) Lagurus L. Pani- 

 cles spike-like or capitate ; spike- 

 lets thickly clothed in the fine, 

 woolly hairs covering the empty 

 glumes, from which project the 

 lon S dorsal awns of flowering 

 glumes ; lateral awns short. 

 Species one (L. ovatus L.) (Fig. 56), in the Mediter- 

 ranean region ; frequently cultivated for dry bouquets. 



TRIBE IX. AVENEJE. 



Spikelets 2-oo -flowered (only one-flowered in Aniso- 

 pogori) ; inflorescence in panicles, rarely in spikes ; 

 all flowers $ or one $ ; empty glumes often persistent 

 or remaining after the fruiting glumes have fallen, usu- 

 ally longer than the flowering glumes, the latter usually 

 awned on the back, sometimes near the point ; awn ge- 

 niculate, rarely nearly straight ; palea two-keeled ; style 

 short or none. Stigmas feathery, protruding above the 

 base or middle of the spikelet. Grain usually furrowed ; 

 embryo small ; starch-grains compound. 



A. Spikelets readily deciduous as a whole. .. 145. Holcus. 



B. Fruiting glumes deciduous, empty glumes persistent. 



