TRIANDRIA— DIGYNIA. Avena. 163 



V. 2.42. ^58. Schreb. Gram. v. 1. 109. t. 15. Leers 42. t.9. f.A. 



Ehrh. Calam. 28. 

 A. n. J 495. Hall. Hist. v. 2. 233. 

 A. svlvestris pilosa^ aristis recurvis. Moris, v. 3. 209. sect.S. t. 7. 



Aegilops quibusdam, aristis recurvis, seu Avena pilosa. Rail 



Siin.389. 

 Ae. bromoides. Ger. Em. 77./. 

 Gramen avcnaceum, utriculis lanugine flavescentibus. Scheuchz. 



Jgr. 239. t.o.f. 1. 



In corn-fields ; where it is often too abundant, especially among 

 barley. 



Annual. June, Julij. 



Root of several thick, whorled, woolly fibres. Stem a yard higli, 

 erect, simple, round, very smooth, most leafy belovv' Leaves 

 spreading, flat, linear, finely ribbed, rough, sometimes hairy, as 

 well as their thin smooth sheaths. Stipula short, abrupt, notched. 

 Panicle large and spreading, with half-whorled, slender, rough, 

 simple or compound, branches, which are tumid at the top. 

 Spikelets drooping or pendulous. Calyx an inch long, green, 

 many-ribbed, chaffy, smooth. Florets 2 or 3, tawny, obscurely 

 ribbed ; finally brown, with copious tawny bristles. Awn 2 

 inches long j spiral, stout and brown in its lower part, vrhich is 

 an excellent hygrometer, well known to natural philosophers. 

 The oblique scar at the base of each Jloret distinguishes this 

 species from A. sativa, whose scar is transverse, and the glumes 

 smooth. 



The flowers serve rustic fishermen, instead of artificial flies, to catch 

 trout. 



2. A. styigosa. Bristle-pointed Oat. 



Panicle oblong, turned to one side. Florets two. Outer 

 valve of the corolla tipped with a double straight bristle. 



A. strigosa. Schreh. Lips. 52. Willd. Sp. PI. v. 1. 446. FL Br. 1390. 

 Engl. Bot. V. 18. t. 1266. Comp. 19. Knapp t. 92. Don H. 

 Br. 8 1 . Schrad. Germ. v. 1 . 368. Host Gram. v. 2.41. ^ 56. 

 Ehrh. Calam. 38. 



In corn-fields. 



Common in Scotland, Wales, Yorkshire and Cornwall : see En<rL 

 Bot. 



Annual. June, Juhf. 



Root fibrous, smooth. Stem a yard high. Leaves more or less 

 glaucous, rough to the touch. Stipula short. The whole habit 

 of the plant resembles A. sativa, or Common Cultivated Oat, 

 except the panicle, which in A. strigosa is more oblong and uni- 

 lateral, less diffuse ; and the florets are essentially characterized 

 by a pair of terminal straight awns to the outer' valve, besides 



M 2 



