In moist meadows near Minusinsk. In full I'lower al tlie beginning of July. 

 Distribution: I'rom Russian Turkestan and the Altai region through southern 

 Siberia to about Lake Baikal, northern Mongolia. 



Batrachospermum paiicistamineum (Tausch) Gelert, Stud. SI. Balidchiiim in Rolan. 

 I'idsskr. B. 19 (1894—95) p. 2(3. Ranunculus aquatilis L. Spec. PI. ed. II (1762) p. 781; 

 Ledeb. Fl. Alt. II, p. 334; Turczan. Cat. Baical. no. 30; Ledeb. Fl. Ross. I, p. 27; Turczan. 

 Fl. Baical.-Dahur. (1842) p. 48, no. 30; Regel, PI. Radd. (1861) p. 38; KjiMj. <I)ji. A.it. I 

 (1901) p. 21. 



subspec. divaricatum (Schrank) Gelert, 1. c. Ranunculus aquatilis /f capillaceus in 

 Ledeb. Fl. Alt. 11, p. 334. Ranunculus aquatilis var. pantolhrix in Ledeb. Fl. Ross. I, p. 

 27; Regel, PI. Radd. (1861) p. 38; Kptu. 1. c. Ranunculus aquatilis a in Turczan. Fl. 

 Baical.-Dahur. (1842) p. 48, no. 30. 



Common in still or very slow waters in the river Abakan, in shallow places, 

 frequently accompanying Polamogeton perfoliatus and species of Sparganium. Most of 

 the specimens had only young flower-buds as late as about the end of June; a few 

 specimens, with fully opened flowers, however, show tliat the flowers are very small, 

 the petals only about 4 mm. long, and, accordingly, somewhat smaller than recorded by 

 Regel. The fruit-buds agree perfectly as to their shape with Gelert'-s drawing 1. c. p. 

 16, fig. 17, whereby this form may be distinctly separated from the form sajanensis from 

 the Sayansk district, described by Regel, recorded to have glabrous fruits. One of the 

 chief characters of the variety is also recorded to be the stiffness of the filiform lobes 

 of the leaves, not clasping together when taken out of the water. This species is also 

 of common occurrence in the Urjankai country, where found by mc at Ust Sisti-kem, 

 near Ust Kamsara, and at Ust Tara-kem. 



Distribution: The species is of common occurrence in the temperate regions of 

 the northern hemisphere. South Africa and Australia. 



Oxygraphis glacialis Bunge, Suppl. Fl. Alt. p. 356; Turczan. Cat. Baical. no. 51; 

 Ledeb. Fl. Ross. I, p. 47; Turczan. Fl. Baical.-Dahur. (1842) p. 47, no. 29; Regel, PI. Radd. 

 (1861) p. 50; Kpbi.1. ^.j. a.it. I (1901) p. 31. 



Only one specimen belonging to this species occurs in my collections, taken in 

 the Altaian, on cliffs, among lichens, at an altitude of about 2200 m. above sea-level, 

 near the perennial snow. The specimen, bearing 4 leaves, is 5 cm. high, the petioles 

 about 4 cm. long, the lamina rather broadly ovate, about 1 cm. long; the margin is nearly 

 entire or only slightly, nearly imperceptibly obtusely crenate. The sepals are ovate, 

 about 5 mm. long. The flower nearly past flowering at the end of July. 



Distribution: Russian Turkestan, the Thian-Shan, the Himalayas, the eastern 

 Altai, the Sayansk district (northern Mongolia), Trans Baikal, on the moulh of the river 

 Lena, the Tshuksher Peninsula, Kamtchatka. 



242 



