102 HORTUS GRAMINEUS WOBURNENSIS. 



BROMUS unioloides, ann. uniola-like, nat. Amer., ibid. Schen. 



unioloides, R. S. L. S. V. 709. 

 caldasii, ann. hot-water 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 ; awn from the back of 

 the valve twisted and jointed ; seed covered firmly by the 

 corolla husk. 

 provincialis, ann. 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, Lam. Avena alta, Cavan. Av. 



Hispanica. Av. Freyta. Av. agraria, &c. 

 brevis, 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. 

 nuda, ann. 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. 

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



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

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

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



Bauh. Pinx. 23. 



sativa Georgiana, Georgian oat. 

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



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

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



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

 Loefflingiana, 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. 



