121 
+r Spikelets lanceolate, 3—5-flowered, panicle lanceolate. 
° Culm rigid, only leafy in the lower part, ligule short, but 
Gals ASE OkoeA cod eh ORAACety © DRO LONCLONSMO mG eLc, OF onO arc P. glauca. 
°° Culm slender, leafy above the middle, ligule inconspicuous 
P. nemoralis. 
+? Spikelets linear-lanceolate, 2—5-flowered, panicle lanceolate 
P. stenantha. 
188. P. annua L. 
Lge. Consp. Fl. Groenl. p.172; Fl. D. tab. 1686. 
Annual or biennial, czespitose. Culm smooth, somewhat flattened, 
soft, leafy nearly to the middle; leaves flat, smooth; ligule evident. 
Panicle unilateral, pyramidal, with 1—3 branches from the lower 
node. Panicle-branches capillary, glabrous. Spikelets 3—5-flowered. 
Glumes unequal, pales distinctly 5-veined, glabrous or a little woolly 
below. 
Am.: West Greenl. 60°—62° (!), acclimatised. 
Geogr. area: North America (introduced), Iceland, Fzerées, Europe, 
Africa, Asia. 
189. P. glumaris Trin., Gramin. genera et spec. p. 379. 
Hook. Fl. bor. Am. II p. 247; Glyceria glumaris Ledeb. FI. Ross. 
IV p. 392. 
With stolons. Culm erect, stout, 1 metre high. Leaves 
broad, flat; ligule very short. Culm and leaves smooth. Panicle 
narrow, compact. Spikelets large, about 1 em. long, 2—5-flowered. 
Glumes about as large as the lower pales of the flowers. Pale 5—7- 
nerved, hairy in the lower part, not woolly. 
Am.: St. Lawrence Island, Kotzebue Sound. 
Geogr. area: Anticosti Island, Sitka, Unalashka, Alaska, Nova 
Scotia, Quebec, East Siberia, Kamchatka. 
190. P. pratensis L. 
Rothr., Fl. of Alaska p. 458; Lge. Consp. Fl. Groenl. p. 176; Hart, 
Brit. Pol. Exped. p. 143; Hartz, Nordést Groénl. p. 350; Nath., Spetsb. 
Karlv. p. 30; Trautv. Consp. Fl. Nov. Zeml. p. 84; Ledeb. Fl. Ross. IV 
p. 378; Kjellm., Sib. Nordk. Fanerogamfl. p. 272, As. Beringss. p. 557, 
Vest-Eskim. Land p.54; Kjellm. & Lundstr., Noy. Semlja p. 313; Trautv. 
Syll. Pl. Sib. bor. orient. p. 541, Fl. rip. Kolym. p. 570; Schmidt, FI. 
Jeniss. arct. p. 127; Fl. D. tab. 1444 and tab. 2947; P. *stricta Lindeb. 
Botan. Notiser, 1856, p.10; Nath., lc. p. 30; Blytt, Bidrag p. 9; Kjellm. 
& Lundstr., lc. p. 313; Fl. D. Suppl. tab. 65; P. stricta *colpodea Th. Fr., 
Till. till Spetsb. Fl. p.138; P. flexuosa v. colpodea Nath., l.c. p.30; Kjellm., 
l.c. p. 272; P.cenisia var. Th. Fr., Beeren Isl. Veget. p. 155. 
With stolons. Culms erect or ascending. Leaves and sheaths 
smooth; ligule evident. Panicle oblong, often contracted, more 
rarely pyramidal and spreading. Panicle-branches about 3—5 from 
