40 TIUANDRIA — DIGYNIA. [Poa. 



nated, int. valve of the cor. of the perfect floret with a hispid 

 niucro, rachis hispid, -Br. — E. Bol. t. 876. — P .Crus corvi, Linn. 

 — Echiuochloa, Ueativ. Lindl. 

 Fields near Loiulon. Fl. July. 0. 



33. Setaria. JBeauv. Bristle-grass. 



1. *S. verficilldta. Beau v. (rough Bristle-grass); panicle spiked 

 lobed below, branches whorled, bristles of the involucre rough 

 Avith reversed teeth. — Panicam verlicillatutii, L. — E.Bot. t. 874". 



In cultivated fields, about Loudon and Norwich. Fl. July, Aug. ©. 



2. * S. viridis, Beauv. (green Bristle-grass) ; panicle spiked 

 continuous, bristles of the involucre rough with erect teeth. — 

 Paniaan viride, Linn, — P!. Bot. t. 875. 



Fields, about London and Norwich. Fl. July, Aug. '^, 



34. PoA. Linn. Meadow-grass. 

 * Spikelets linear or suhcylindrical. (Glyceria, Sm., and in part i?r.) 



1. P. aqudtica, L. (reed 3Ieadoio - grass) ; panicle erect very 

 much branched, spikelets linear of about 6 obtuse florets which 

 have 7 ribs. E. Bot. t. 1315. — Hydrochloa, Hartman, Lindl. 



Sides of rivers, ponds and ditches. Fl. Jul}', Aug. If. — 4 — 6 feet 

 high, erect. Leaves linear, lanceolate, rough. Ligule short, obtuse. 

 C«/.-valves small, ovate, obtuse, membranous, smoothish. Ext. valves 

 of cor. twice as large as the calyx ; int. narrower and bifid at the point. 



2. "P. fiuilanSf Scop, (floating Meadow-grass); panicle nearly 

 erect slightly branched, spikelets linear appressed of from 7 to 1 1 

 obtuse florets which have seven ribs with short intermediate ones 

 at the base, root creeping. E.Bot. t. 1520. — Festuca, L. 



Ditches and stagnant waters, abundant. Fl. July, Aug. If. — Culms 

 1 — 3 feet high, thick and succulent. Leaves linear-lanceolate, acute. 

 Ligide oblong, pointed. Panicle subsecund, very long, slender ; cal.- 

 valves unequal, small, ovate, membranous, obtuse. Cor. valves ovato- 

 oblong, thrice as long as the cal. ; outer ones scabrous. The scale is 

 of 1 thick fleshy piece, which is the principal character of Mr Brown's 

 genus Glyceria. — This species is found in New Holland. It yields the 

 Manna-seeds of our shops, which are gathered abundantly in Holland, 

 where, as well as in Poland and Germany, they are used for food. 



3. P. maritima, Huds. (creeping Sea Meadow-grass) ; panicle 

 erect subcoarctate (rigid), spikelets linear of about 5 obtuse 

 florets which are obsoletely 5-nerved, leaves convolute, root 

 creeping. E. Bot. t. 1140. — Sclerochloa, Lindl. 



Sea-coast, frequent. 7^/. July, Aug. If. — 8 — 12 inches high, rigid, 

 glaucous. Leaves involute, somewhat pungent. Ligide ovate, bluntish. 

 Glumes all firm, cartilaginous, purplish. Co/.-valves nearly as large as 

 the cor., with mostly 3 ribs. Florets hairy at the base. 



4. P. distans, L. (refiexed Meadow-grass) ; panicle spreading, 

 branches at length deflexed, spikelets linear of about 5 obtuse 

 florets which are obsoletelv 5-nerved, leaves plane, root fibrous. 

 E. Bot I. 986. 



