30 TRIANDRIA — DIGYNIA. lAlojJecurus. 



On Bon Lavrers and the Clova Mountains, in micaceous soil. Cwm 

 Idwcl!, North Wales. Near Croft, il//- Jos. TFooi/s. F/.July. 1/.— lean- 

 not satisfv myself of tho validity of the characters of the many-spiked spe- 

 cies oi Erioj)/iorum. With regard to the E.puhcscens, it is certaiidy very 

 common hoth in America and this country, and I had always talvcn it for 

 E. polystachion. It is assuredly the E. latifuliian of Schrader, for he 

 makes its character to depend on the scabrous (not really puhescent) 

 peduncles. Mr Wilson is disposed to consider ]\Ir Woods' E. r/racile 

 as a good species, easily recognized by its many-ribbed glumes and de- 

 cidedly pubescent fruit-stalks, as also by its very narrow short leaves. 



13. Nardus. Lmn. Mat-grass. 



1. N. sfricta, L. {Mat-grass) ; spike erect slender, the florets 

 all pointing one way. E. Bot. t. ^90. 



Moors and heaths, most abundant. Fl. June. If. — A grass of simple 

 structure, growing in short tufts, so coarse and rigid that cattle will not 

 eat it. Culms and leaves setaceous. Spike long, erect, grooved, and 

 toothed at short distances for the insertion of the florets. Valves of 

 the cor. lanceolate : outer one coriaceous, purplish-green, tapering gra- 

 dually into an awn ; inner smaller, awnless, membranous. 



TRIANDRIA DIGYNIA. 



14. Alopecurus, Linn. Fox-tail-grass. 



1. A. pratensis, L. {Meadoio Fox-tail-grass'); culm erect, 

 smooth, panicle spiked cylindrical obtuse, calyx-glumes lanceo- 

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

 corolla. E. Bot. t. 759. 



Meadows and pastures, common, Fl. May, June. 1/ . — U to 2 feet 

 high : an excellent grass for cattle. Panicle of a yellow-green colour 

 •with silvery hairs. Cal. and Cor. much ciliated ; in this, as in all the 

 species, remarkably compressed. 



2. A. alpiniis, Sm. (^a/pine Fox-tail-grass) ; culm ascending 

 smooth, panicle spiked ovate, cal. -glumes ovate abruptly acute 

 liairy united at the base, awn scarcely longer than the corolla, 

 upper sheath inflated thrice as long as its lanceolate leaf. E. 

 Bot. t. 1126. 



Discovered by Mr H. Brown on Loch na Gaar, in Aberdeenshire. 

 It was pointed out to me by Mr T. Drummond on wet rocks b}- a water 

 fall at Loch Whorol, Clova. White water and other streams of Clova, 

 Mr H. C. Watson, Dr Graham. Fl. July, Aug. 1/.— This jtlant, 

 which, even at first sight, is readil\' distinguishable by its ovate panicle 

 and short broad upper leaf, with its inflated sheath (as first observed by 

 Mr Brown in the Appendix to Parry's 1st Voyage), seems to be quite 

 unknown to Botanists abroad, and is very rare indeed in this country. 

 It is, however, plentiful in North America and Spitzbergen. 



S. A. agrestis, L. (^slender Fox- tail- grass) ; culm erect scabrous 

 ahove, panicle spiked cylindrical acuminate, calyx-glumes acute 

 almost glabrous united as far as the middle. E. Bot. t. 848. 



Fields and waj'. sides. June, Jul3% © . — Readily known by its at- 

 tenuated panicles or spikes, frequently of a pnr])lish colour, and bj' f ho 

 lanceolate acute cal.-ghnnes, which are glabrous or a little rough at the 



