Baical.-Dahur. (1S:>1. II) p. 95. no. 1132; Pmzei: Orchid.-Pleon. in Engl. Pflanzenr. H. 

 12 (IV, 50, 1903) p. 32: Kpw.i. «I>.i. A.ir. VI (1912) p. 1319. 



Dispersed on the islets in the lower part of the river Abakan, especially in thickets, 

 among grass, etc., and in thickets of I'oliferous trees near the Dora Steppe as well. 

 Taken in full flower in June. 



Distribution: Central and southern Russia, Siberia, northern Mongolia, eastern 

 Asia, Sakhalin, North America. 



Cypripedihim niacranthum Swartz in Act. Acad. Holm. (1800) p. 250: Ledeb. Fl. 

 Alt. IV, p. 174: Turczan. Cat. Baical. no. 1114: Ledeb. Fl. Ross. IV, p. 87; Turczan. 

 Fl. Baical.-Dahur. (1854, II) p. 94, no. 1131; Pfitzer, Orchid.-Pleon. in Engl. Pflanzenr. 

 H. 12 (IV, 50, 1903) p. 32: Kpw.T. >l\i. A.rr. VI (1912) p. 1318. 



Rather common in the regions about the river Abakan, on the islets in the river, 

 in thickets, among grass, and the like, in moist, grass-grown fields in depressions on the 

 Abakan Steppe, near Askys, accompanying various sedges, Orchis etc., and near Ust 

 Sisti-kem. Collected with flowers in the middle and at the end of Jvdy. 



Distribution: Middle and southern Russia. Siberia, Sakhalin. Japan, eastern Asia, 

 northern ^Mongolia, central Asia. 



snbspec. ventricosum (Swartz) Reichenb. Fl. German. Excurs. I (1830) p. 120: 

 Pfitzer, 1. c. p. 34; Kjim.t. 1. c. p. 1319. Cijpripedilum venlricosiim Swartz, 1. c. ]). 251: 

 Ledeb. Fl. Ross. IV, p. 87. 



Only a few specimens observed on an islet in the river Abakan, near Askys. In 

 full flower about the middle of June. 



Distribution: Middle Russia, Siberia. 



Piantanthera bifolia (L.) Reichenb. Fl. German. Excurs. I (1830) p. 120; Ledeb. 

 Fl. Alt. IV, p. 171; Turczan. Cat. Baical. no. 1102; Ledeb. Fl. Ross. IV, p. 69; Turczan. 

 Fl. Baical.-Dahur. (1854. II) p. 85; KpM.r. <I).t. A.it. VI (1912) p. 1315. 



In somewhat dry, grass-grown Ihickets. near Kalna. Nearly past flowering about 

 the middle of July. 



Distribution: Europe, Asia Minor, Trans Baikal, Siberia, North Africa. 



Coeloglossum viride (L.) Hartm. Handb. Skand. Fl. (1820) p. 329: K|ii,u. $.i. A.ix. 

 VI (1912) p. 1314. Peiistiilis uiiidis Lindl. Synops. Brit. Fl. (1829) p. 261: Ledeb. Fl. 

 Ross. IV, p. 72. Gijmnadenia viridis Rich., Ledeb. Fl. Alt. IV, p. 169: Turczan. Cat. Baical. 

 no. 1100. Platanthem viridis Lindl., Turczan. Fl. Baical.-Dahur. (1854, II) p. 86. no. 1122. 



In moist, grass- and moss-grown places on the river Algiac. Flowering in July. 



Distribution: Europe, except the extreme south, Asia Minor and south-western Asia, 

 Siberia, northern Mongolia, Sakhalin (var.). North America. 



Gymnadcnia conopea (L.) R. Br. in Aiton, Hort. Kewensis ed. II, V (1813) p. 191; 

 Ledeb. FL Alt. IV, p. 169; Turczan. Cat. Baical. no. 1099: Ledeb. Fl. Ross, IV, p. 64: 

 Turczan. Fl. Baical.-Dahur. (1854, II) p. 83, no. 1117: Kjim.!, <I>.i. A.n. VI (1912) p. 1311. 



186 



