Caltha palustris L. Fl. Lappon. (1737) p. 227 et Spec. PI. ed. II (1762) p. 784; 

 Ledeb. FI. Alt. II, p. 303; Turczan. Cat. Baical. no. 52; Ledeb. Fl. Ross. I, p. 48; Turczan. Fl. 

 BaicaL-Dahur. (1842) p. 61, no. 49; Kegel, PI. Radd. (1861) p. 52; Huth, Monogr. Gatt. 

 Caltha ill Abh. Vortr. Geb. Naturw. 130, IV (1891) p 17; Kpwji. cRi. Ajit. I (1901) p, 32. 



Rather common everywhere in moist grass^fields, on brooks, etc. in the territory 

 explored. The material collected varies considerably in nearly all characters, and the 

 numerous forms seemed to pass gradually into each other. 



Near Ust Abakansk I have gathered a rather luxuriant form, with vigorous, erect 

 stems, generally bearing from 8 to 10 flowers each. The leaves are markedly reniforiTi, 

 generally completely or nearly completely entire. Each flower is comparatively small, 

 length of the sepals from 12 to 15 mm., and generally 5 in number. Moreover, these 

 specimens are distinguished by having numerous follicles, varying from 12 to 17 in num- 

 ber. I have met with this species in brooks and swamps between Minusinsk and Kusha- 

 bar, on the Upper Amyl, the Sisti-kem and Bei-kem, right up to the Dora Steppe. In 

 the Altaian found by me along mountain rivulets, up to ahitudes of about 2000 m. 

 above sea-level. The species flowers in June and July. 



In alpine regions of the Altaian I have collected specimens belonging to a lower 

 form, with orbicular or cordiform leaves, and the margin acutely serrulate. The 

 flowers are few in number, only 3 on each stem, comparatively large, the flower about 

 3,3 cm. in diameter, and the sepals, of which the number is generally from 5 to 7, are 

 distinguished by being comparatively broad and short, and furnished with prominent 

 darker nerves. The number of the follicles is comparatively small, generally from 5 to 

 6. These specimens may possibly belong to Caltha alpina Schur, Enum. PI. Transsilv. 

 (1866) p. 26, but all the specimens being young and flowering, without ripe fruits, a 

 reliable decision is difficult. 



Distribution: Europe, except the extreme south, Siberia, eastwards to the Sea of 

 Okhotsk and Manchooria, northern and eastern Mongolia, the western Himalayas, China, 

 Japan, Sakhalin, North America. In Tibet and the eastern Himalayas there occurs the 

 nearly allied species, Caltha scaposa Hook, et Th. 



TroUius asiaticus L. Spec. PI. ed. II (1762) p. 782; Ledeb. Fl. Alt. II, p. 301; Bunge, 

 Enum. Alt. no. 34; Turczan. Cat. Baical. no. 54; Ledeb. Fl. Ross. I, p. 50; Turczan. Fl. 

 Baical.-Dahur. (1842) p. 63, no. 51 ex parte; Kegel, PL Radd. (1861) p. 57; [KptiJi. Oji. Ajit. 

 I (1901) p. 33; Huth, Rev. Art. Trollius („Helios" Monatl. Mitth. Naturwissensch. B. IX, 

 no. 1) p. 2. 



var. typicus Kegel, 1. c. p. 57; Huth, 1. c. p. 3. 



Rather frequent on the Abakan Steppe, in moist meadows near Askys, where occur- 

 ring associated with Ranunculus acris and R. repens, Piimiila sibirlca, Cypripedilum 

 macranthum, Orchis sp. div., Carex sp. div., etc. I have, moreover, found this species 

 near Kushabar, at Kalna, and Ust Algiac. Taken in full flower in June and July. The 

 flowers in this species do not exceed, to judge from the material collected, 3,5 cm. 



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