Polypodium vulgare L. Spec. PI. ed. II (1763) p. 1544; Ledeb. Fl. Alt. IV, p. 324; 

 Turczan. Cat. Baikal, no. 1340; Ledeb. Fl. Ross. IV, p. 508; Karel. et Kiril. Enum. PI. 

 Fl. Alt. no. 953: Turczan. Fl. Baical.-Dahur. (1856, I) p. 75, no. 1382; Luerss. Farnpflanz. 

 p. 53; KptLT. "Dj. A.TT. VII (1914) p. 1812. 



On a rocky wall in the Amyl taiga, near Kalna, and on the Kamsara. With nearly 

 ripe spores in the middle of July. 



Distribution: In the northern frigid zone, over the greater part of Europe, Siberia, 

 western, central, and eastern Asia, Africa, the Canary Islands, the Azores, Madeira, 

 North America, Kerguelen, and the Sandwich Islands. 



Ophioglossaceae R. Bk. 



Botrychium Matricariae Spreng. Syst. Veget. IV, p. 23; KpLi.T. $.1. A.tt. VII (1914) 

 p. 1766. Bolrychiuin matricarioides (Wild.) Fries, Novit. Fl. Svec. ed. II, p. 288; Turczan. 

 Cat. Baical. no. 1339; Ledeb. Fl. Ross. IV, p. 505; Turczan. Fl. Baical.-Dahur. (1856, I) p. 

 86, no. 1401. Botrychium nitaefolium A. Br. in Koch, Syn. ed. 2. p. 972; Luerss. Farn- 

 pflanz. p. 582. 



In pastures, and moss-grown fields, in open woods of conifers and foliferous trees, 

 near Ust Algiac and Ust Sisti-kem. 



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

 North and South America, Australia. 



Equisetaceae C. RICH. 



Equisetum arvense L. Spec. PI. ed. II (1763) p. 1516; Ledeb. Fl. Alt. IV, p. 320; 

 Turczan. Cat. Baical. no. 1360; Ledeb. Fl. Ross. IV, p. 486; Turczan. Fl. Baical.-Dahur. 

 (1856, 1) p. 67, no. 1366; Luerss. Farnpflanz. p. 687; Kpwj. $.t. Ajt. VII (1914) p. 1751. 



In moist fields on the Yenisei, near Ust Abakansk. Only the barren stems gathered 

 at the beginning of June; in meadows at Ust Kamsara, in August. 



subspec. alpina Wahlenb. Fl. Lapp. p. 296; Luerss. 1. c. 



Near the Algiac Pass, in subalpine woodlands. Sterile. 



subspec. erecta Klinge, Arch. Nat. Liv. Ehst. u. Curland. 2. ser. VIII (1882) p. 3/2; 

 Luerss. 1. c. 



On moist and muddy ground, on the borders of an islet in the Yenisei. Gathered 

 sterile at the beginning of June. 



Distribution: The species is spread over Europe, Siberia, western, central and 

 eastern Asia, Sakhalin, Japan, North America, Greenland, Africa. 



Equisetum pratense Ehrh. Beitr. Ill, p. 77; Ledeb. Fl. Ross. IV, p. 488; Turczan. 

 Fl. Baical.-Dahur. (1856, I) p. 68, no. 1368; Luerss. Farnpflanz. p. 660; Kpti.!. <I>j. A.it. 

 VII (1914) p. 1753. Equisetum umbrosum Meyer in Willd. Enum. PI. H. Berol. p. 1065; 

 Ledeb. Fl. Alt. IV, p. 331. 



106 



