102 HOllTUS GRAMINEUS WOBURNENSIS. 



BROMUS uniohides, ami. uniola-like, nat. Araer., ibid. Schen. 

 utiioloides, R. S. L. S. V. 709. 

 caldasii, linn, hot-wditer brome, ibid. Schen. caldasii, R. S. L. S. 

 V. 709. 

 AVENA. Oat-grass. Generic character : calyx 2-valved, many- 

 flowered, florets loosely collected ; corolla 2-valved, valves 

 spear-shaped, exterior valve awned ; aivn from the back of 

 the valve twisted and jointed ; seed covered firmly by the co- 

 rolla husk. 

 provincialis, ami. Provence oat-grass, nat. France. Danthonia 

 provincialis, R. S. L. S. V. i. p. 689. Var. Av. spicata, Willd. 

 Av. calycina, Vill. 

 strigosa, ann. meagre oat-grass, indig. June. Sm. Engl. Fl. 

 163. E. Bot. 1266. Danthonia strigosa, R. S. L. S. Veg. i. 

 p. 691. Avena nervosa, hsim. Avena alta, Cavan. Av. His- 

 panica. Av, Freyta. Av. agraria, &,c. 

 hrevis, ann. short, nat. Germ. June. Host. iii. t. 42. 

 alba, per. white, nat. France. Decand. Fl. Fr. Suppl. p. 259. 

 sterilis, ann. barren oat, nat. Germ. May and June. Host. ii. 



t. 57. 

 hirsuta, ann. hairy, nat. (?) cultivated in Europe. 

 Orientalis, ann. Turkey oat, nat. Germ. July. Host. iii. t. 44, 

 elephantina, ann. nat. C. G. Hope. Thunb. Prodr. i. p. 437. 

 wwJa, awn. naked or pilcorn, indig. July. Wither. Arr. ii. 164. 



Cultivated in Cornwall. Ray. 

 fatua, ann. bearded oat, or haver, indig. August. E. Bot. 2221. 



Sm. Engl. Fl. i. p. 162. 

 tenuis, ann. slender oat, nat. Germ. June. Host. ii. t. 55. 



Trisetum tenui, R. S. Linn. Sys. Veg. i. p. 657. 

 sativa nigra, ann. cultivated black oat. July and August. 

 sativa alba, ann. cultivated white oat. July. Flo. Rust. t. 79- 



Bauh. Pinx. 23. 

 sativa Georgiana, Georgian oat. 



Pennsylvajiica, ann. Pennsylvanian oat, nat. North America. 



Linn. Spec. 117. Trisetum Pennsylvanicum, R. S. L. S. Veg. 



Siberica, ann. Siberian oat, nat. Siberia. Linn. Spec. 117. Stipa 



Sibirica, R. S. L. Sys. Veg. i. p. 338. 

 Loeffiingiana, ann. Spanish oat, nat. Spain. July. Linn. Spec. 



118. Trisetum Loefflingiana, ibid. p. 661. 

 fragilis, ann. brittle, nat. Germ, and Spain. June. Host. ii. 

 t. 54. Gaudinia fragilis, Linn. Sys. Veg. i. p. 694. 



