FLORA OF THE KURILE ISLANDS. 231 



Hah. Skil-otan, in grassy places on the beach. Etorofu, at Furubetsu. 



My Kni'ile specimens correspond very well with the fignre and description of Lelnnann 

 in his Revisio Potentillarum. Some of the radical leaves of the plant collected at Furn- 

 betsn attain the enormons length of 30 cm. These leaves have in all cases only two 

 pairs of lateral leaflets; while the smaller leaves have generally three pairs, the pairs de- 

 creasing in size toward the base. The akenes are glal^rous, and sometimes more or less 

 wrinkled; the styles snbterminal, and slightly shortei- than the akenes; and the receptacle 

 very hairy. 



P. fragiformis vav. japonica, A. Gray, Bot. Jap. p. 387, which Professor Maximowicz 

 makes a synonym of our present plant, proves accoi-ding to the oi'iginal specimen to be 

 P. fragarioides, vnr. tentata. 



Disfrib. Kamtschatka and adjacent islands, Saghalin, Japan, and eastern Himalaya 

 (ex Max.). 



87. Potentilla fragiformis, Willd. in Magaz. d. Gesellsch. natnrf. Freundc zu Berl. vn, j). 

 294; Ledeb. Fl. Eoss. ii, p. 59; Ser. in DC. Prodr. ii, p. 586; Lehm. Monog. 

 Pot. p. 163, t. 15, and Rev. Pot. p. 155; Keg. & Til. Fl. Ajan. p. 85; Max. Prim. 

 Fl. Amnr. p. 96; F. Schm. Fl. Saeh. p. 127; Watson in Proc. Am. Acad, virr, p. 

 559; Forbes & Ilemsley, Index Fl. Sin. ]). 242. P. grandlflora, L., vnv. fragifor- 

 mis, Ser. in DC. Prodr. p. 572. P. grandiflora, Max. Mel. Biol, ix, p. 161. 



Ilah. Kurile Islands! (ex Max.). Etorofa, on rocky cliffs near Rubetsn. 



Densel}^ villose; stem ascending, 20-30 cm. long; radical leaves moderately villose 

 (in small older leaves), or densely silky villose (in yonnger larger leaves) ; leaflets rhom- 

 bic cuneate; teeth deeply cut, oblong and obtuse; cyme generally about 5-flowered ; bract- 

 lets broadly ovate and obtnse, shorter than the lanceolate or ovate-lanceolate sub-acute 

 sepals; sepals and Ijractlets erect in fruit, enclosing many smooth akenes which are more 

 or less distinctly keeled. 



The plants collected at Kombnmori and I^emnro on the northeastern coast of Yezo 

 were equally large and were in flower. The flowers are very large, measuring about 

 40 mm. across. 



Distrih. Sibei'ia from the Altai region to Kamtschatka ; Manchui'ia, northeastern and 

 middle China, Saghalin, Yezo, Aleutian Islands, Alaska to Washington Ti'rritoiy. 



Professor Maximowicz considers the European P. grandiflora, L., and P. fragiformis, 

 Willd., of northeastern Asia, as identical, on the ground that the distinctive characters 

 based on the bractlets and the teeth of the leaves do not hold very well in every case. lie 

 includes under the same species P. gelida, C. A. Me}'., and also P. villosa. Pall., as its 

 varieties. A similar opinion is endorsed by Sir J. D. Hooker in his Flora of British India, 

 II, p. 357, in connection with P. gelida. 



So far as the materials at my hand allow me to judge, there seems to be a well marked 

 distinctive character in the ripened akenes of these plants, Avhich if proved to be constant 

 in all other eases woidd help not a little in determining their relative position. 



Potentilla grandiflora : — Akenes ovoid, glabrous, obtusely and obscurely ridged on the 

 margin, with lour prominent curved veins running almost parallel (" arcuato-rugosis " 

 of Scringe) . 



