TRIAND. DIGYN. 2 



5. E. an gustl folium (common Cotton-grass), culms suhtrigo- 

 nous, leaves linear grooved, involucre longer than the flower- 

 ing spikes. Light/, p. 89 (E. polystachion). E. B. 1. 5(>4. 



HAB. Moors and peat-bogs, very frequent. Fl. May. "U 

 This, as Dr. Schroder justly observes, is intermediate between the fore- 

 going and following species, differing principally from the latter in 

 the culms rounded at the base, in the narrower and channelled 

 leaves, and simple pedicels, and from the former in its larger size, 

 longer involucrum, and more acute glumes. 



6. Ei. polystachion (broad-leaved Col ton- grass), culms trigonous, 

 leaves broadly linear plane, involucrum longer than the flower- 

 ing spikes. E. B. t. 56tf. 



HAB. Pentland Hills, G. Don. Common in Scotland, Dicks. Fl. 

 May, June. 3/ . 



Distinguished by the breadth of the leaves and their plane surface. 

 The spikes, when in seed, are on very long drooping footstalks, 

 and then often ramified. Silky hairs shorter than in E. angustif. 



7. NARDUS. 



1. N.stricta (Mat-grass), spike erect slender, the florets all 

 pointing one way. Lightf. p. 90. E. B. t. 290. 



HAB. Moors and heaths, most abundant. FL June. I/ . 



A grass of a very simple structure, growing in tufts, surrounded at 

 the base with the remains of former years' leaves. Culms, as well 

 as the divaricating leaves, setaceous, rigid, 4 C inches high. Spike 

 terminal, erect, grooved, and toothed at short distances for the in- 

 sertion of the florets, which are all distichous and pointing upwards. 

 Cal. 0. Cor. of 2 valves, lanceolate, outer one coriaceous, purplish 

 green, tapering gradually into an awn ; inner one smaller, awn- 

 less, membranous. Stani. 3. Style and Stigma 1. 



2. DIGYNIA. 



8. PANICUM. 



1. P. sanguinale (Cock's-foot Panic-grass), spike digitate, florets 

 in pairs secund pubescent at the margins, leaves and sheaths 

 slightly hairy. E. B. t. 849. 



HAB. A single plant found at Dalbeth, Hopk. A doubtful native even 

 in England. Fl. July, Aug. 0. 



About a foot high, bent and jointed at the base. Leaves broad, and 

 as well as the sheaths more or less hairy ; hairs springing from mi- 

 nute, elevated, points. Calyx of 3 very unequal valves, the outer- 

 most an extremely minute scale, the one opposite to it twice its 

 size and pubescent at the margin, innermost one thrice the size of 

 the second, rigid, ribbed, and pubescent at the margins. Valves of 

 Cor. nearly equal in length, whitish, membranaceous. 



9. ALOPECURUS. 

 1. A. pratensis (Meadow Foxtail-grass), culm erect smooth, 



