DICOTYLEDONES. 

 POLY PETALS. 



RANUNCULACE^. 



1. Clematis fusca, Tiiiez. in Bull, de hi Soe. des N^atur. de Mosc. (1840), jj. 60; Ledeb. Fl. 



Ross. I, p. 725; Max. Mel. Biol, ix, p. 587; Fr. & Sav. Emiiu. ii, p. 262. 



Habitat. Northern Kariles! (Turcz.).^ 



The plant is stiictly northeastern Asiatic in its distribution. It grows in swampy 

 places throxighout eastern Siberia bordering the Ochotsk Sea, descending southward on 

 the continental side as far as southern Manchuria ; while on the insular side it was found 

 to come south as fai- as the vicinity of Hakodate in Y^ezo. The plant has not yet been 

 recorded from Saghalin. 



According to Franchet & Savatier,the plants found growing aromid Hakodate belong 

 to the var. mandfihurica, Regel (Fl. Uss. p. 2, t. 2, f. 1). The plants which I have col- 

 lected at Tokoro in the province of Kitami, and also at Iloi'omui near Sapporo, have char- 

 acters more nearly approaching that variety than any of the others established by Regel. 

 But they differ in some points, which are easily noticeable. In the Y'ezo plants the tlowers 

 are also on both the terminal and axillary peduncles, and are provided with two opposite 

 bracts; but they ai-e always solitary, and the bracts, which are broadly ovate, obtuse, and 

 often 2-3 lobed, are placed on the peduncle a little above the middle. 



2. Clematis alpina, Miller; DC. Prod, i, p. 10. Atragene alpina, Ij. ; Max. Mel. Biol, ix, p. 



60o; Turcz. Fl. Baic.-Dahur. i, p. 25. Atr. alpina, L., var. ochotensis, Hgq- & Til. 

 Fl. Ajan. p. 20. Atr. jjlatysfijxila, Trautv. & Mey. Fl. Ochot. p. 5. 



IJah. Kurile Islands {ex Turcz.). Etorofa, in shady woods near Furubetsu. 



This extremely variable species is widely distrilmted in Europe, northern Asia and 

 Japan; and also in the Rocky Mountain region of North America. The Japanese plants, 

 especially those which grow in the cold shady woods of Y'ezo and the Ivuriles, correspond 

 exactly to those collected in eastern Siberia and Kamtschatka, described as var. oclioten- 

 sis by Regel and Tiling. 



The Amei'ican foi-m (C. (dpina, var. occideidalis, A. Gray, in Powell's Geol. of Black 

 Hills of Dakota, p. 531) can scarcely be distinguished from some of tlie Old World plants, 

 except, perha[)s, as has been pointed out by "Dr. Gi'ay, by a greater tendency of its petals 

 to staminody, — a chai-acter which is vei-y poorly developed in the Euroj)ean plant, but 

 which is seen more and more mai'ked in the plants growing eastward. 



' Tlie mark ! iilaced after a locality of a plant which was men of tlic plant thus referred to lias been seen by Prof, 



not C(jllectcd liy myself, indicates that tlic original speci- C. J. Maximowicz in the Uerbaria of St. I'etersburg. 



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