64 HORTUS ORAMINEUS WOBURNENSIS. 



BROMUS scaberrimuSf afni. rougliish-flowered, nat. Italy. 



lividiis, ami. bright lead-coloured, nat. S. America. 



laiiatus, ami. woolly, nat. S. America. 



procerus, ami. tall. 



imioloides, afin. uniola-like, nat. America. 



caldasii, ami. hot-water brome. 

 AVENA. Oat-grass. Generic character: calyx tvvo- 

 valved, many-flowered, florets loosely collected ; corolla 

 two-valved, valves spear-shaped, exterior valve awned : 

 awyi from the back of the valve twisted and jointed ; 

 seed covered firmly by the corolla husk. 



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



sirigosa, ami. meagre oat-grass, indig. June. 



brevis, ami. short, nat. Germany. June. 



alba, per. white, nat. France. 



sterilis, ami. barren oat, nat. Germany. 



hirsuta, ami. hairy, nat. ? 



Orientalis, atin. Turkey oat, nat. Germany. July. 



elephantina, ami. nat. C. G. Hope. 



nudttj ami. naked or pilcorn, indig. July. Cultivated 

 occasionally. 



fatua, ami. bearded oat, or haver, indig. August. 



temiis, ami. slender oat, nat. Germany. June. 



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



sativa alba, ami. cultivated white oat. July. 



sativa Georgiana, Georgian oat. 



Femisylvanica, aim. Pennsylvanian oat, nat. North Ame- 

 rica. 



Siberica, ami. Siberian oat, nat. Siberia. 



Loeffiingiana, ami. Spanish oat, nat. Spain. July. 



fragilis, ami. brittle, nat. Germany and Spain. June. 



semperviiem, per. evergreen oat ; nat. Germ. June. 



fallax,per. fallacious, nat. Pyrennees. 



Jlavescens, per. yellow oat, golden oat, indig. June and 

 July. 



pratensiSf per. meadow oat, indig. June and July. 



pubescens, per. downy oat, indig. June and July. 



alpestris, per. rock oat, nat. Germany. August. 



brevifolia, per. short-leaved, nat. Germany. 



