Panicum.'] TIIIANDUIA — DIGYNIA. 39 



within the cal., no tuft of hairs at the joints, root fibrous. E. Bot. 

 t. 1169. 



Meadows, pastures, and woods, common. Fl. June, July. 1| Much 



resembling the last in general appearance, but clothed with a softer and 

 more abundant pubescence. 



29. Arrhenatherum. Beauv. Oat-like grass. 



1. A.avendceum^ Beauv. (<?o;??wzo?i Oat-like grass). Lindl. Syn. 

 p. 305. — Holcus avenaceus, Scop. — E. Bot. t. 813. — Avena ela- 

 tior, Linn. 



Hedges and pastures, frequent. Fl. June, July. If. — I am not aware 

 that more than one species exists of this genus. The A-vena precatoria 

 of ThidlL, Avena nodosa of Ciillum., Arrh. bulbosiun, Dunal and 

 Lindl., are but varieties with a knotted or tuberous base to the stem. — 

 2 — 3 feet high. Panicle long, loose. Spikelets greenish-brown. 



30. HiERocHLOE. Gmel. Holy-grass. 



1. H. bo7-ediis, H. et ^. (iiorthern Holy-grass); panicle subse- 

 cund, peduncles glabrous, florets awnless, outer valves of tlie cor. 

 ciliated at the margin. Hook, in E. Bot. Stfj)pLt.2641. — Holcus 

 odoratus, Linn. Sm. — Hole, borealis, Schrad. 



In a narrow mountain-valley, called Kella, in Angus-shire, G. Don. 

 Fl, July. 1^. — A valuable discovery of the late acute Mr G. Don. About 

 1 f. high, glabrous. Zea^es linear-acuminate. PaweWe brownish, glossy. 

 Spikelets broadly ovate. Cal.-valves ovate, acute, rather unequal, some- 

 times a little serrated at the point. Florets rather longer than the cal. 

 and the outer valves of a firmer texture, scabrous when highly magnified, 

 distinctly fringed at the margin, the point sharp, but not awned. Central 

 Jloret the smallest. — Smell resembling that of Anthoxanthiim odoraturn. 

 In Iceland it is so plentiful as to be used by the people to scent their 

 apartments and clothes. 



31. Sesleria. Linn. Moor-grass. 



1. S. ccerulea, Scop, {blue 3Ioor-grass); panicle spiked ovate 

 bracteated, outer valve of the cor. with one short terminal awn. 

 E. Bot. t. 1613. — Cynosurus, L. 



Mountains in the north of England and Scotland, especially abundant 

 in limestone regions. FL April — June. If. — One of our earliest grasses 

 and a very beautiful one. The roots much tufted ; plants 6 — 12 or 18 

 inches high. Leaves linear, obtuse. Spike of a shining bluish-grey, with 

 large yellow anthers tipped with purple. Spikelets generally in pairs, 

 oblong-ovate, the lower ones with an ovate ciliated and toothed bractea 

 at the base. Cal.-valves ovato-lanceolate, 3-toothed, middle tooth length- 

 ened into an awn and often bifid, pubescent at the keel and margin. 

 Florets longer than the cal. Valves of the cor. oblong-ovate : ext. one 

 ribbed, pubescent and ciliated or jagged with about 5 teeth, the middle 

 tooth lengthened into a short awn ; int. valve bifid at the point. 



32. Panicum. Li^in. Panick- grass. 



1. * P. Crus-galli, L. (loose Panick-grass) ; spikes alternate 

 secund divided or simple, florets imbricated, the cal. and ext. 

 valve of the cor. of tlie neuter floret hispid awned or mucro- 



