22 TRIANU> — DIGYN. 



panicle spiked cylindrical obtuse, calycinc glumes lanceolate 

 acute hairy connate at the base, awn twice the length of the 

 corolla. Liglitf. p. 9. E. B. t. 7b9. 



Hab. Meadows and pastures, common. Fl. May, June. 1/. 



Culms H to 2^ feet high. Spike with silvery hairs, yellow-green co- 

 lour. Glumes of Col. and Cor. in this and all llie species remark- 

 ably compressed, and both are much ciliated. 



2. A. alpinus {alpine Foxtail-grass), culm erect smooth, pa- 

 nicle in an ovate spike, calvcine glumes ovate abruptly acute 

 hairy united at the base, awn scarcely longer than the co- 

 rolla. E. B.t. 1126. 



Hab. Mountains about Loch na Gore in Aberdeenshire, and of Clova, 

 Angus-shire, G. Don. Ben Lawers, R. Brown, Esq. Fi. July. 7/ . 



I scarcely know which of the abovementloned Botanists has the ho- 

 nour of the discovery of this rare plant, of which no other station is 

 at present known in the world. Mr. Brown gave me a specimen 

 gathered very many years ago at Ben Lawers. Distinguished at 

 first sight by its short ovate or rather oblongo-ovate spike. The 

 calycine ghuues come suddenly to a point, neither gradually taper- 

 ing as in A. praiensis, nor obtuse and truncated as in A. genicu- 

 latus. Glumes of the Cor. at least twice as broad as in the former 

 species ; its awns scarcely reaching beyond the glumes. 



3. A. agrestis (slender Fox I ail- grass), cuUn erect scabrous 

 above, panicle spiked cylindrical acuminate, calycine glumes 

 acute almost glabrous united as far as the middle. Light/', 

 p. 91. E. B. t. 843. 



Hab. Fields and by way sides. June, July. ©. 



Well distinguished by its attenuated spikes frequently of a purplish 

 brown tinge. Cul. glumes lanceolate, acute, glabrous, or a little 

 rough on the keel and nerves. Cor. quite smooth, with the awn 

 3 or 4 times its length. 



4. h. geniculates {floating Foxtail- grass), culm ascending bent 

 at tlie joints, panicle spiked cylindrical obtuse, calycine glumes 

 united at the base truncated slightly hairv, awn twice as long 

 as the Corolla. Light/, p. 92. E. B. /. 12:)0, and /. 1467 

 (y/. fiilvus). 



Hab. \Vet meadows and marshy places. Fl. July, Aug. 11. 



Florets smaller than in any other species. Ghunes of the cal. veiy 

 obtuse, trvmcate, membranaceous at tlie margin, ciliated at the 

 back, scarcely hairy elsewhere. Glumes of the cor. equally obtuse, 

 membranaceous, glabrous, varying in the length of the awn. In 

 dry places the plant is smaller and has a bulbous root, Hopk. The 

 Messrs. Don have found the A. fulvus of E. Bot. in Angus-shire 

 and Fifeshire: but I cannot find a single character to distinguish 

 this as a species, nor even as a var. In a recent examination of 

 original specimens from the habitat given in E. Bot., 1 observe 

 the unprotruded anthers, exactly as they are in A. geniculatus ; 

 when they are exserted and have discharged their pollen they con- 

 tract in length and become of a deeper colour, which is also the 



