248 GRAMINE^E. [Gii/ceriu. 



23. P. rotundata [Triii,); paniculae sublineari laxae radiissubquinisangulato-filiformi- 

 bus scabriusculis simpliciusculis inferne nudis, spiculis (rotundato-apertis) trifloris brevi- 

 pedicellatis, perianthiis obsolete nervosis lineari-ellipticis acutiusculis dorso lateribus 

 basique contortuplicato-villosulis, radice subrepenie ? Trin, in Act, Petrop. 6. 1. 378. 

 Kth» Unum.p, 359. 



Hab. Unalaschka. (Trinins.) 



32. GLYCERIA. Br. Kth, 



* 



1. G. aquatica^ Sm, — Ktk. — Poa aquatica, L, — E, Bof, t, 1315. Torr. FL \.p, 107. 

 {par. Americana). Gray, Gram, et Cyp, Part I.jo. 58, — /3. humilis. 



Hab. Lake Winipeg to the Saskatchawan. I>r JRichardson* Drummond. Marshes near the Western 

 Ocean. Douglas. — j8. Rocky Mountains. Drummond. — The var. /3. is scarcely a foot high, with smaller and 

 less branched panicles than usual. 



2. G. arctica (n, sp.); panicula erecta (statu juniori) contracta, spiculis erectis 

 elongatis compresso-cylindraceis 7-8-floris, glumis inEequalibus flosculo inferiore breviori- 

 bus obtusis, perianthii valvulis tenui-membranaceis laevibus obtusis, foliis lineari-setaceis. 

 (Tab. CCXXIX.) 



Hab. Arctic Sea-coast. Dr Richardson. — I possess but one specimen of this plant, which is different from 

 any Poa or Glyceria with which I am acquainted. It is scarcely a foot high, flaccid ; leaves much tufted at 

 the base, a span long. Culm leafy to the top. Panicle 3 inches long, erect. Florets distichous, erect, 

 slightly imbricated, green, tipped with reddish-purple ; texture of the glumes thin and membranaceous. 



. Tab. CCXXIX.— JFi^r- 1. Spikelet; /. 2. Glumes ; / 3. Florets ;— magnified. 



L 



3. G,fluiians^ Br — Torr, FL i./>. 106. Gray, Gram, et Cyp.Part I. n, 48. — G. spec- 

 tabilis, M, et K. Fl, Germ — Bongard, Veg. Sitcha, p, 54. — Festuca fiuit. L, — Poa, E. Bot. 

 t 1520.— Ma;. 



Hab. Saskatchawan. Drummond, 



4. G.pauciflora [Prest); panicula erecta comppsita patentissima, spiculis 4-floris pa- 

 tentibus, glumis rotundatis uninerviis, palea inferiore quinquenervia, radice repente. Presl^ 

 in Beliq, Haenk. I. p. 257. 



Hab. Nutka Sound. — " Affinis G.^wttonfi, sed distincta.'* Presl, 



5. G. nervata, Trin. in Act. Petrop. 6. 1, 365 — G. Michauxii, Kth. Gram. 1. 118. 343. 

 e. 85. — Poa nervata, Wilid.—Ph, — Torr. — Gray, Gram, et Cyp. Part 11. n, 57.— P. 

 striata, 3Ix. 



Hab. Rocky Mountains, Drummond. 



6. G. eiongata, Trin — Poa elongata, Torr. Fl \.p. 122. {non Willd.)—V. Torreyana, 

 Spreng Gray, Gram, vt Cyp. Part II. n. 56. Kth. Enum. p. 333. 



Hab. Canada. Mrs Perceval 



