170 



TRIANDRIA. DIGYNIA. Elymus. 



arena'rius. E. Spike upright, compact: calyx woolly: longer than the 



floret, ' 



Schrel. 40-Gmel; i. 25-Clus. ii. 221. 2-C. B. 68. 1-Ger. 

 23-C. B. th. lA^Park. 1277. 1-7. B. ii. 478. 2.-H. ox. 



V • • 



cani'nus . 



vin. 2. 1 1 . 



Spike upright, long, woolly. Little sfikes 2 together, straight, 

 containing 2 florets, awnless. Leaves like those of an Arundo, 

 bluish green, or whitish ; rolled inwards and sharp-pointed. Linn. 



Sea Lime-grass. Sea coast, in loose sand* P. July, Aug.* 



E. Spike compact, leaning : spikets upright, without an 



involucrum : the lowermost in pairs. See Triticum 

 caninum. 



europoe'us. E, Spike upright; spikets 2 florets in each; as long as the 



calyx. 



Scheucb.pr. 1. 1-Pari. 1144. 7. (\)-Mont. 94. 



Florets, together with their awns, longer than the fence* 

 Linn. Leaves of the fence equal, somewhat scored towards the 

 end. Florets often 2, and both fertile ; with the rudiment. In 

 structure it is an Elymus, in habit it approaches rather more to 

 the Hordeum. In truth it seems the connecting link between 

 these two genera. Floret generally single. St. 



Hcrdeum syl<vat:cum. Huds. Wood Lime-grass. Woods in 



chalky soil. [Rocks opposite Matlock Baths; Ripton Woods, 

 Huntingdonshire. Near Berkhamstead, Herts. In the North, 

 frequent. Mr. Woodward.] P. June* 



HOR'DEUM. C*/. lateral, 2-valved, 1 -flowered, 



3 together. 



Obs. The curious, but complicated structure of the Hordeum, 

 has prevented many young botanists from ascertaining the species 

 to their own satisfaction, though there is no great difficulty in 

 the task. We have only 3 species in this island, all of which have 



1st. Two male and 1 hermaphrodite floret in each set. 



d. All the awns, whether belonging to the involucrum* or to 

 the larger valve of the blossom, barbed. 



3d. Smaller and inner valve of the blossom awnless. 



4th. Involucrum, or fence, 2 leafits, or awn-like substances to 



each floret, and a third to the hermaphrodite floret, placed 



It resists the spreading of the loose sand on the sea shore, 

 jiot capahle of being formed into ropes as the Stipa tenacissima 



Spain r— Cows, horses, and goats eat it - y sheep refuse it. 



It i* 



is in 



