133 
Am.: Kotzebue Sound. Eur.: Samoyede Land. As.: Mouths of the 
Yenissei (!) and Lena. 
Geogr. area: North America (introduced?), Iceland, Fzerées, Eu- 
rope, Northern Asia. 
Obs. Conf. A. violaceum (Horn.) Lge. 
210. A. violaceum (Horn.) Lge. Consp. Fl. Groenl. p. 155. 
Triticum violaceum Hornem. in FI. D. tab. 2044; Scheutz, Pl. vase. 
Jeniss. p. 183; (?) T. repens v. purpurascens et nanum Hook. FI. bor. Am. 
Il p. 254; A. dasystachyum vy. violaceum Greely, Lady Frankl. Bay Exp. 
II p. 15. 
Ceespitose. Culm erect, rigid. Leaves broad, flat, roughish on 
both sides. Spike dense, spikelets 3—5-flowered, generally tinged 
with violet or purple, more seldom green (f. virescens Lge. 1. c.), 
hairy or glabrous. Glumes 5-nerved, abruptly narrowed into a 
short awn. 
Am.: Arctic Sea-Coast (?), Grinnell Land 81° 44’, West Greenl. 60°— 
70° 8’ (!). As.: Mouth of the Yenissei (!). 
Geogr. area: Northern North America, Iceland, Northern Scandi- 
navia, Northern Finland, Kola Peninsula. 
Obs. In habit most resembling A. repens, but is more related to A. caninum 
(L.) R. & S. (because of the absence of stolons and the leaves being rough on 
both sides) to which transitory-forms are found in North America and North 
Scandinavia. Most likely the varieties purpurascens and nanum of Triticum repens 
mentioned by Hooker |. c. belong to this species. 
A. violaceum (Horn.) Lge. x Elymus arenarius L. 
Roseny., Till. p. 726. 
Stoloniferous. Habit as Elymus, spikes as Agropyrum. Glumes 
5—7-nerved, as long as the spikelets. Spikelets 2—4-flowered, lower 
pale oflen narrowed into a short awn. Spike more or less hairy, 
partly tinged with violet. 
Am.: West Greenl. Igaliko Sound c. 61° in two spots (!). 
24. ELYMUS L. 
211. E. mollis Trin. 
Hook. Fl. bor. Am. II p. 255; Eastwood, PI. coll. at Nome City p. 130; 
Taylor, Pl. coll. at Davis Str. and Bafl. Bay p. 86; Rothr., Fl. of Alaska 
p.458; Macoun, Catalogue IV p. 246; Ledeb. Fl. Ross. IV p. 332; Kjellm., 
Sib. Nordk. Fanerogamfl. p. 272, As. Beringss. p. 556, St. Lawrence-én 
p. 21, Vest-Eskim. Land p.54; Trauty. Fl. Terr. Tschuktsch. p. 39, Syll. Pl. 
Sib. bor. orient. p. 540. 
Stoloniferous. Culm short, hairy in the upper part. Leaves 
flat, becoming involute on the margins. Spike short, glumes linear- 
lanceolate, soft of texture, somewhat shorter than the spikelets. 
Glumes and pales densely and softly hairy. 
