﻿( 108 .) 



DA'CTYLIS* *. 



Linnean Class and Order. TRiA'.\DRiAf, Digy'nia. 



Natural Order. Grami'neje, Juss. (Jen. PI. p. 28. — Sm. Gram, 

 of Bot. p. 68. — Lindl. Syn. p 293. ; Introduct. to Nat Syst. of Bot. 

 p. 292. — Loud. Hort. Brit. p. 542. — Grami'na, Rich, by Macgilliv. 

 p. 393. — Sm. Engl. FI. v. i. p. 71. 



Gen. Char. Panicle, with the secondary branches short and 

 very dense, subsecund. Calyx (fig. 1.) of 2 unequal, strap-spear- 

 shaped, taper-pointed, keeled, compressed glumes, containing a 

 spikelet of several florets (fig. 2). Corolla (see fig. 2.) of 2 unequal, 

 spear-shaped, keeled, compressed palece, the outer one more or less 

 awned, flat, and membranous at the edges ; the inner one about as 

 long as the outer, but narrower, 2-ribbed, folded, and acutely cloven 

 at the point. Nectary of 2 spear-shaped, pointed scales, tumid at 

 the base. Filaments (see fig. 2.) 3, hair-like, longer than the co- 

 rolla. Anthers oblong, cloven at each end. Germen (fig. 3.) round- 

 ish. Styles (fig. 3.) very short, distinct. Stigmas (fig. 3.) spread- 

 ing, oblong, feathery. Seed oblong, with a longitudinal furrow, 

 covered by the unchanged corolla, but loose, not attached to it. 



Distinguished from other genera, with a panicled inflorescence, 

 and many-Howered spikelets, in the same class and order, by the 

 unilateral, short, and very dense, secondary branches ; the calyx of 

 2 unequal glumes, the larger one keeled ; and the corolla of 2 spear- 

 shaped, scarcely awned palece, inclosing the fruit. 



Nearly allied to Festuca, and scarcely to be distinguished from 

 that genus, except in habit. 



One species British. 



DA'CTYLIS GLOMER A'T A. Rough Cock’s-foot GrassJ. 

 Orchard Grass. 



Spec. Char. Panicle distinctly branched. Flowers in dense 

 globular tufts, pointing one way. Corolla somewhat awned, 5- 

 ribbed, taper-pointed. 



Engl. Bot. t. 335. — Knapp’s Gram. Brit. t. 62. — Host’s Gram. Austr. v. ii. p. 

 67. t. 94. — Schreb. Besch. der Graser. t. 8. f. 2. — Linn. Sp. PI. p. 105. — Huds. 

 FI. Angl. (2nd ed.) p. 43. — Sm. FI. Brit. v. i. p. 1 1 1. Engl. FI. v. i. p. 134. — 

 With. (7th ed.) v. ii. p. 175. — Gray’s Nat. Arr. v. ii. p. 125. — Lind. Syn. p.310. 

 — Hook. Brit. FI. p. 44. — Lightf. FI. Scot. v. i. p. 99. — Leers’ FI. Herb. (2nd 

 ed.) p. 22. t. 3. f. 3. — Martyn’s FI. Rust. t. 14. — Sibth. FI. Oxon. p. 43. — Abb. 

 FI. Bedf. p. 20.— Curt. Observ. on British Grasses, (5th ed.) p. 89. t. 7. — Purt. 

 Midi. FI. v. i. p. 69. — Relh. FI. Cant. (3rd ed.) p.39. — Sincl. Hort. Gram. Wo- 

 burn. p. 23. f. 15. and p. 136., with a plate. — Hook. FI. Scot. p. 37.— Grev. FI. 

 Edin. p. 24. — FI. Devon, pp. 18 & 124. — Johnston’s FI. of Berw. v. i. p. 25. — 

 Baxter’s Lib. of Agricul. and Horticul. Know. (2nd ed.) p. 295., with a figure. — 

 Walk. FI. of Oxf. p.25. — Bab. FI. Bath. p. 58. — Mack. C’atal. of PI. of Irel. 

 p. 14. — Gramen asperum, Ray’s Syn. p. 400. 



Fig. 1. Calyx. — Fig. 2. Two Florets, shewing the Stamens and Pistils. — 

 Fijj. 3. Germen and Pistils. 



* From daktulos, Gr. a finger ; the cluster of spikes somewhat resembling 

 fingers. Withering. f See Alopecurus pratinsis, folio 45, note f. 



t The name of Cock’s-foot, by which this grass is known, is not wholly inap- 

 plicable, for by inverting the flowering heads, some idea is given of the animal’s 

 loot, with the lower branch projecting like a spur. Knapp. 



