AiraJ\ : * CVIL GRAMINEiE.. 541' 



r 



2. A. alpim L. {sm.ooth Alpine H.) -, panicle subcoarctate, 

 branches and pedicels perfectly or nearly smooth, glumes smooth 

 on the midrib, upper 3-ribbed, tlorets^as long as the glumes 

 awn mserted above the middle and scarcely exceedino- the 

 glumes in length. Parn. Gr. tt. 23, 109. A. laevigata E b'. 

 t. 2102. ■ o - 



_ Moist rocks on the higher Scottish mountains and in Wales, usually' 

 viviparous, i;. 6, 7. - About 1 foot high, very smooth. Leaves 

 only scabrous to the touch on the upper side, short. Panicle ratlier 

 small ; branches erect ; the lower ones, when viviparous (which they 

 niostly are), patent and even drooping. Spikelets not numerous, larger 

 than in A. ccEspitosa a., and more resembling, as does the whole pknt ' 

 the var. &. and J. fiexuosa. Glumes equal, quite smooth. Florets with 

 a short tuft of hairs at the base. Glumellas lanceolate, not compressed 

 lower one slightly jagged at the end. The awn is flat at the base and 

 usually twisted in the flowering specimens; but in the viviparous 

 ones, the awn is straight and subterminal, often a mere point, and the 



w M T "?f ?"''^^ glabrous at the base. In A, atropurpnrea 

 Wahl., the panicle is fewer-flowered, and the florets are considerably 

 shorter than the calyx. ^ 



3. k fiexuosa L. {waved H.) ; panicle (when flowering) dif- 

 fuse, glumes roughish on the midrib, upper with central and 2- 

 obscure lateral ribs, florets villous at the base as lon<r as the 

 glumes, avvn jointed inserted near the base of but much longer 

 than the glumella, leaves setaceous. — a. lower floret scarcely 

 longer than the glume. E. B. t. 1519 : Parn. Gr. tt. 23, 107 



•- 13. montana ; more slender, lower floret longer than the <ylume ' 

 Parn. Gr. t. 108. o • 



Heaths and hilly places ; abundant. — 3. Highland moors, amon- 

 heather. %. 7. — Habit of the last, but taller. F/orefo larger and 

 the awns protruded considerably beyond the calyx. Glumellas as in ' 

 tne last two species. Ligule of the uppermost leaf bifid. 



Outer glumella entire at the end; awn jointed in the middle with a 

 tuft of hairs at the joint, upper portion clavate. Neuter floret 

 wanting. Glumes both 1 -nerved. ■' 



4. A. canescens L. {grey H.) ; panicle rather dense, florets 

 snorter than the calyx, awn clavate shorter than the calyx 

 leaves setaceous. JE. B. t. 1190: Parn. Gr. t. 110. Cory-' 

 nephor us i?eaz<«. ^ 



On the sandy sea-coasts of Dorset, Norfolk, and Sufl^olk. Jersey ' 

 i; 7. — Remarkable in this genus for having its awn clavate, 

 and bearing, at the joint, a tuft of hairs; a character which distin- 

 guishes It from all other British grasses. 



Outer glumella bifid, at length somewhat cartilaginous and enclosing 

 t/ie canjopsis. Awn geniculate, twisted. Rudimentary neuter floret 



none. Glumes both l-nerved. 



H.) 



I 



