Distribution: Europe, Siberia, northern Mongolia, eastern Asia, Japan, Sakhalin, 

 North America. 



Equisetum hiemale L. Fl. Lapp. (1737) p. 311, et. Spec. PL ed. II (1763) p. 1517; 

 Ledeb. Fl. Alt. IV, p. 322: Turczan. Cat. Baical. no. 1358; Ledeb. Fl. Ross. IV, p. 490; 

 Turczan. Fl. BaicaL-Dahur. (1856, I), p. 69, no. 1371; Luerss. Farnpflanz. p. 734; KpBu. 

 $.1. A.TT VII (1914) p. 1760. 



Here and there in moist, shady taiga, between Kuhabar and Petropawlowsk; in the 

 Altaian, on the borders of a small lake in the forest, about the limit of tree vegetation. 



Distribution: Europe, except the extreme south-west, western Asia, Siberia, north- 

 ern Mongolia, eastern Asia, Sakhahn, Japan, North America. 



Equisetum variegatum Schleich. Cat. PL Helvet ed. II (1807) p. 27; Ledeb. Fl. Ross. 

 IV, p. 490; Turczan^Fl. Baical.-Dahur. (1856, I) p. 70, no. 1372; Luerss. Farnpflanz. p. 765; 

 Kpto. <D.i. A.IT. VII (1914) p. 1761. 



In the subalpine regions, on sandy banks of rivers, on the Upper Amyl. 



Distribution: Artie Islands Europe, except the extreme south-west, Siberia, north- 

 ern Mongolia, North America, Greenland. 



Equisetum scirpoides Michaux, Fl. Bor. Amer. II (1803) p. 281; Ledeb. FL Ross. IV, 

 p. 491; Luerss. Farnpflanz. p. 779; K]im.i. O).!. A.it. VII (1914) p. 1762. 



A few specimens of this species gathered by me in the Altaian, in moist, sandy, and 

 gravelly places, on the banks of a brooklet above the hmit of tree vegetation, at a height 

 of towards 2000 m. above sea-leveL and also in moist places near Ust Tara-kem. 



Distribution: Arctic Islands, northern Europe, Siberia, northern Mongolia, Sakha- 

 lin, North America, Greenland. 



Lycopodiaceae R. Rich. 



Lycopodium Selago L. Spec. PL ed. II (1763) p. 1565; Ledeb. Fl. Alt. IV, p. 323; 

 Turczan. Cat. Baical. no. 1368; Ledeb. Fl. Ross. IV, p. 496; Turczan. FL Baical.-Dahur. 

 (1856, I) p. 71, no. 1373; Luerss. Farnpflanz. p. 788; Kpi.i.i. $.i. Ajt. VII (1914) p. 1742. 



Rather common in the Altaian, where met with right up to the beU of lichens. 

 With sporangia at the end of July. 



Distribution: Arctic Islands, Europe, except the extreme south-western portions, 

 western Asia, Siberia, northern Mongolia, Sakhalin, Japan, North and South America, 

 Madeira, the Azores, SL Helena, Tasmania, New-Zealand. 



Lycopodium annotinum L. Spec. PL ed. II (1763) p. 1566; Turczan. Cat BaicaL no. 

 1364; Ledeb. Fl. Ross. IV, p. 497; Turczan. Fl. BaicaL-Dahur. (1856, I) p. 71, no. 1374; 

 Luerss. Farnpflanz. p. 809; Kptut. $ji. Ajt. VII (1914) p. 1743. 



108 



