TRIANDRIA— DIGYNIA. Agrostis. 91 



3. A. setacea. Bristle-leaved Bent- grass. 



Awn incurved, from near the base of the corolk; innet 

 valve minute. Calyx lanceolate, tapering, rough. Ra- 

 dical leaves brisde-shaped. Stem nearly erect. Panicle 

 close, oblong. 



A. setacea. Curt. Brit. Gr. 42. Lond. fasc. 6. t. 12. Fl. Br. 79. 

 Engl. Bot. V. 17. t. 1 188. Knapp t. 24. Hook. Scot. 25. 



A. alpina. With. 128, with erroneous synonyms. 



A. canina y. Huds.3\, excluding the syn. 



On dry turfy heaths, in the south and west of England. 



Mr. Curtis, who first distinguished this grass, received it from his 

 gardener Robert Squibb, from Piddletown heath, Devonshire. 

 The late Earl of Gainsborough, and the present Bishop of Car- 

 lisle, observed it in Hampshire ; the late Duchess Dowager of 

 Portland at Weymouth ; and Mr. D. Turner in the Isle of Wight. 

 Professor Link sent it from Portugal, where he found it common 

 on heaths. 



Perennial. July, .August. 



Root rather woody, tufted, with strong downy fibres. Stems 8 — 12 

 inches high, a little inclining, slender, nearly or quite smooth, 

 leafy. Leaves pale glaucous green ; the radical ones involute, 

 almost capillary, erect, acute, roughish, or downy ; those of the 

 stem shorter, broader, with very long smooth sheaths. Stipula 

 lanceolate, tender, often torn. Panicle erect, oblong, cylindri- 

 cal, but little spreading at any period ; its branches angular, 

 bristly. Fl. erect, pale purpli.sh. Cal. of 2 unequal, long and 

 tapering, keeled, scarcely awned, valves, rough at the edges and 

 keel, downy all over. Outer valve of the corolla lanceolate, 

 shorter than the calyx, with a rough twisting awn from near the 

 bottom, twice the length of the valve ; inner very small, oblong, 

 about equal to the germen. Anth. purplish, deeply cloven at 

 each end, prominent. Styles distinct. 



Very different from A. alpina of Willdenow, Sp. PL v. 1 .368, which 

 is Haller's Avena n. 1477 ; as well as from his rupestris, Haller's 

 n. 147S. 



** Generally nioithozit Wions. 



4. A. vulgaris. Fine Bent-grass. 



Panicle spreading; with divaricated, capillary branches. 

 Calyx-valves nearly equal. Stem erect. Stipula abrupt, 

 very short. 



A. vulgaris. With. 132. Fl. Br. 79. Engl. Bot. v. 24. t. 1671. 



Knapp t. 26, &; t.Wo. Relh. 27. Hook. Scot. 25. Sijicl. 143. 



Schrad. Germ. v. 1. 206. t. 2. /". 3. Hoffm. Germ, for 1800. 36. 



t.7. 

 A. hispida. WJtd. v. I. 370. 



