308 APPENDIX. 



Bromus mollis, Eng. Bot. t. 1078. Parn. Br. Gr. t. 116. 



One to two feet high. Panicle rather close, and nearly or 

 quite always erect. Spikelets varying greatly in their number of 

 florets. Top of the upper glume reaching halfway to the top of 

 the sixth floret; or a little higher in Parnell's var. ovalis (tab. 

 117), which has short oval spikelets; or about halfway to the top 

 of the eighth floret in Parnell's var. pratensis (tab. 118), where 

 the spikelets are longer. Lower pale longer than the upper. 

 Anthers about three times as long as broad. Simple peduncles 

 not longer than their spikelets. 



Rarely the spikelets are glabrous when it is Br. racemosus of 

 Parnell (tab. 119) and of Babington's Manual, but not of Lin- 

 naeus nor Smith. 



This is our common Brome-grass ; one of the most frequent of 

 all our grasses. 



2. S. racemosus (Pari.) ; panicle long, erect, usually simple ; 

 spikelets ovate, rather compressed, glossy; florets imbri- 

 cate, about as long as the straight awn ; lower pale uni- 

 formly rounded on the sides; leaves and sheaths slightly 

 hairy. 



Bromus racemosus, Eng. Bot. t. 1079. 



B. arvensis, Eng. Bot. t. 920. 



Often more than two feet high. Panicle long, narrow, loose, 

 nearly or quite erect, close with fruit. Spikelets longer in pro- 

 portion to their width than those of S. mollis. Top of the upper 

 ghune reaching halfway to the top of the fourth floret. Lower 

 pale longer than the upper. Anthers four times as long as broad. 



In this plant the spikelets are rather rough to the touch, 

 rarely at all hairy, but naked and shining. The herbage is not 

 soft like that of S. mollis. It inhabits the borders of fields rather 

 than the field itself. 



It only remains to give a table of the characters of these and 

 the allied species as follows : 



1. Sides of the lower pale uniformly rounded 2. 



Sides of the lower pale angular 3. 



