so TRIAND. DIGYS. 



base as long as the cal., awn inserted above the middle of and 

 scarcely exceeding the cor.^ leaves linear. A. alp. Linn, fide 

 IVahL Lapp. p. 34. A. Icevigala, E. B. t. 2102. D. Don. 

 MSS. inedit. 



Hab. Moist rocks in the mountains of Angus-shire, G. Don. Ben 

 Lomond, D. Don. Ben Arthur and Highland mountains, proba- 

 bly not uncommon. Fl. July. % ■ 



About 1 foot high, very smooth. Leaves only scabrous to the touch 

 on the upper side, short. Panicle rather small, branches erect, on 

 the lower ones, when viviparous (which they mostly are) patent 

 and even drooping. Spikelets purple brown, not numerous, larger 

 than in A. ccesjntosa and more resembling, as does the whole plant, 

 A.flexuosa. Cal. valves equal, quite smooth. Florets with a short 

 tuft of hairs at the base ; upper one not pedunculated, f'ahes of 

 the cor. lanceolate, acute, entire, not compressed. Wahlenburg 

 considers this to be the true Linnaean J. alpina, of which no speci- 

 men however exists in the Linn. Herb, at Norwich. Very nearly 

 allied to it is the A. atropurpurea of ^Vahl. Fl. Lapp. (A. alpina 

 Fl. Dan.), but it differs in the still fewer-flowered panicle and in 

 the florets being considerably shorter than the cal. 



5. A. Jlex7iosa {waved Hair-grass), panicle (when flowering) 

 diffuse, florets villous at the base as long as the cal., awn joint- 

 ed inserted near the base much longer than the cor., leaves 

 setaceous. Lighlf. p. 95. E. B. t. 1519. 



Hab. Heaths and hilly places abundant. Fl. July. % . 



Habit of the last, but taller. Florets larger and awn protruded con- 

 siderably beyond the cal. Valves of the cor. as in the two last 

 species. 



6. A. caryophyllea {Silver Hair-grass), panicle divaricate, flo- 

 rets scarcely villous at the base shorter than the cal., awn in- 

 serted below the niiddle jointed longer than the cal., leaves 

 setaceous, Lighlf. p. 95. E. B. i. 812. 



Hab. Gravelly hills and pastures, frequent. Fl. June, July. 1/ . 



From 2 to 6 — 8 inches. Leaves short, few. Panicle trichotomous. 

 Florets silver)' grey. Cal. valves nearly equal, lanceolate, the up- 

 per part pellucid and white. Valves of the cor. scabrous -at the back, 

 unequal, apex bifid. 



7. A.prcecox {early Hair-grass), panicle soniewhat spiked, flo- 

 rets scarcely villous at the base about as long as the cal., awn 

 twisted inserted below the middle longer than the cal., leaves 

 setaceous. Lighlf. p. 95. E. B. 1. 1296. 



Hab. Sandy hills and pastures. FL May, June. 0. 



One to three inches high. Panicle or spike few-flowered, pale sil- 

 very green. Valves of the cal. lanceolate, scabrous when much 

 magn., those of the cor. narrow, acuminate, scabrous j the point 

 bifid. 



18. MELICA. 



1. M, nutans {Moutuain Melic-grass), panicle nearly simple 



