38. 9. GRAMINEAE. 



68. Florets 2. 28 PENTASCHISTIS. 

 Florets more than 2. 29 DANTHONIA. 



69. Valves awned. 70 

 Valves awnless. 7Z. 



70. Valves 7—9 nerved. 71. 

 Valves 5 nerved. 72. 



71. Spikelets subsessile in a simple raceme or false spike. 



64 BRACHYPODIUM. 

 Spikelets in open or contracted panicles. 61 FESTUCA. 



72. Glumes very unequal. Awn of valve long. 62 VULPIA. 

 Glumes not very unequal. Awn of valve short. 



61 FESTUCA. 

 7^. Valves broadly cordate, boat shaped. 59 BRIZA. 



Valves not broadly cordate, boat shaped. 74. 



74. Valve nerves usually distinct. Hilum of seed linear, 



61 FESTUCA. 



Valve nerves usually faint. Hilum of seed punctiform. 



Glumes and valves keeled. Florets often with a tuft of 



wool at the base. 60 POA. 



i. IMPERATA Cyr. "umTente. ' 



arundinacea Cyr. In vleis and moist sand. All over South 

 Airica. 



2. SACCHARUM L. 



munroanum Hack. Vleis. Rather rare. 



3. ERIANTHUS Mich. "umTala." 



1. capensis Nees. A very tall, common vlei grass. 



2. sorghum Nees. Much rarer. Vlei species. 



3. junceus Stapf. Drakensberg. 



4. POLLINIA Trin. 



1. villosa Spreng. Common in coast belt grassland. 



2. nuda Trin. Shade-loving rambling forest species. 



5. ISCHAEMUM L. 



1. fasciculatum Brogn var arcuatum Hack. Coastbelt 



scrub and vleis. 



2. franksae J. M. Wood. Rare mountain species. Tabam- 



hlope. 



6. ROTTBOELLIA Lf. 



compressa L.f. var fasciculata Hack. Vleis and stream- 

 banks. 



7. URELYTRUM Hack. 



squarrosum Hack. High veld. Common. Coast veld 

 rare. 



8. TRACHYPOGON Nees. "isiTupe." 



polymorphus Hack, var capensis Hack. High veld. Common 



