9 
15. E. hiemale L. v. Doellii Milde. 
Rosenvy. Till. p. 741. 
Stem simple, with a large central hollow, with 10—12 obtuse 
ribs separated with slender furrows, sheaths close, at the top black, 
teeth linear awlshaped, a little rough, persistent. (The typical form 
is generally larger and thicker, with deciduous, glabrous teeth). 
Am.: West Greenl., Kagsiarsuk in the Igaliko Fjord 60° 53’ (!). 
Geogr. area: v. Doellii only found at the Rhen (the type in North 
America, Iceland, North and Central Europe, Northern Asia, Turkistan, 
Japan). 
16. E. variegatum Schleicher. 
Hook. Fl. Bor. Am. IT p. 270; Greely, Lady 
Frankl. Bay Exp. II, p. 15; Lge: Consp. FI. 
Groenl. p.191; Hartz, Nord-Ost Grénl. p. 353; 
Nath., Spetsb. Karlv. p.39; Trautv. Fl. Terr. 
Tschukts. p. 40. Fl. D. t. 2490; E. tenellum 
(Liljeb.) Krok, Andersson & Hesselmann, 
Spetsberg. Karlv. p. 85; E. scirpoides Hartz. 
l.c. p. 353; E. scirpoides Buchenau & Focke 
in sched.; E. scirpoides Ekstam in shed. 
Tufted, stem upright or decumbent, — pig 9, rquisetum scirpoides Michx. 
a . to the left, E. variegatum Schleich. 
generally unbranched, with a small cen- to the right; magnified. 
tral hollow and 4—12 ribs, separated with 
furrows generally half as broad as the ribs, these are flat or slightly 
furrowed. Sheaths slightly enlarged upwards, teeth ovate or lanceo- 
late, whitemargined, tipped with a deciduous rough bristle. 
Varying much in size, now and then not larger than the fol- 




lowing species, f. anceps Milde, and often confounded with this, but 
easily recognisable by the ribs which in E. varigatum are only 
slightly furrowed, in E. scirpoides so deeply furrowed that the plant 
has double as many equal furrows and sharp ribs as teeth. 
Am.: Arctic islands, Baffin Land 67°20‘, Grinnell Land 81° 44%, 
West Greenl. 60°—71° (!), East Greenl. 70°—75° (!). Eur.: Spitsbergen (!), 
Beeren Island, Novaya Zemlya (Ekstam as E. scirpoides,!). As.: Chukches 
Land. 
Geogr. area: Northern North America, Iceland, Scandinavia, 
Finland, Central Europe, Siberia. 
17. E. scirpoides Michx. 
Macoun, Catalogue V, p. 252; Lge. Consp. Fl. Groenl. p. 191; Th. Fries 
Beeren Isl. Veget. p. 156; Blytt, Bidrag p. 8; Nath. Spetsb. Karlv. p. 39; 
Ledeb. Fl. Ross. IV, p. 491; Trauty. Syll. Pl. Sib. bor. orient. p.545, Fl. Kolym. 
p. 573; Schmidt, Fl. Jeniss. arct. p.130. Fl. D. t. 2923. 
Densely tufted, stem upright or decumbent, often tortuous, 
generally unbranched, without central hollow. Sheaths enlarged 
