List of Pteridophyta of Greenland. 217 
Var. serotinum Milde. fl. с.] 
West Gr. 70°—60°15’, here and there. 
Form. polystachyum (Milde) Rosend. [Milde Sporenpfl. 107 (1866)]. 
West Gr. Umanak 64°29, Godthaab 64°11’ 1891 A. Dahl. 
Equisetum scirpoides Mich. [Е. Bor. Amer. II. 281. {1803)]. 
Var. alpestre Rosend. [De svenska Equisetum-arterna och deras former, 
Ark. f. Botanik. Bd. 15. Nr. 3 (1917)]. 
West Gr. Holstensborg 66°56’ 1844 J. Vahl, Kerortusok 66°55 1884 
Е. Warming, Th. Holm. 
Var. cæspitosum Rosend. [l. c.] 
West Gr. 76°30’—62°58': Tasiusak 76°30’ 1887 С. H. Ryder, Disko: 
Godhavn 69°14’ 1870 $. Berggren, N. Strémfjord 67°28’ 1894 H. Soren- 
sen, Holstensborg 66756’ 1884 Е. Warming, Th. Holm, Kangarsuk 62°58’ 
1888 L. Kolderup Rosenvinge. 
Equisetum variegatum Schleich. [Catal. pl. Helv. ed. 2. 27 (1807)]. 
Var. alpestre Milde. [Ann. Mus. Lugd. — Bat. I. Ill. 70. (1863)]. 
West Gr. 69°14’—61°13’: Disko: Godhavn 69°14’ 1871 Th. M. 
Fries, Kiesengiartak, Itivlek 68°25’ 1883 A. Berlin, Sukkertoppen 65°29’ 
1870 5. Berggren, Ivigtut: Grønnedal 61°13’ 1883 A. Berlin; East Gr. 
74°35’'—70°: Pendulum Ø 74°35’, Sabine Ø 74°32’, Clavering Ø 74°10’ 
1889 P. Dusén, Fleming Inlet, Scoresby Sund 70° 1891 N. Hartz. 
Var. anceps Milde. fl. с. III. 71 (1863)]. 
West Gr. Igdlorsuit 71°15’ 1885 $. Hansen, Egedesminde 68°42’ 
1890 N. Hartz; East Gr. 74°30’—66°: Lille Pendulum @ 74°30’, Sabine 
Ø 74°30’ 1899 P. Dusén, Kap Borlase Warren 74°17’ 1900 С. Kruuse, 
Clavering © 74°10’ 1899 P. Dusén, Hold with Hope 73°30’ 1892 N. Hartz, 
Germania Land: Moskusoksfjeldene 73°30’, A. Lundager, Scoresby 
Sund 71°30’—70° N. Hartz, Hurry Inlet 70°50’, Kap Dalton 69°25’, 
Kingorsuak 66°5’, Ikerasausak 6671899 С. Kruuse. 
Var. cespitosum Doll. [Döll. Fl. Baden. I. 71. (1855)]. 
West Gr. 71°—60°, commonly distributed; East Gr. 75°—70°, here 
and there. 
Var. virgatum Doll. fl. c.] 
West Gr. Igalıko 60°59’, Tunugdliarfik 60°50’ 1888 L. Kolderup 
Rosenvinge, Tasermiut 60°5’ 1889 N. Hartz. 
