2:50 



Fl. N. Am. i, p. 421; F. Schm. Fl. Such, p.126; Fr. & Sav. Enum. i, p. 128, n, p. 

 335; Scheutz, Prod. Monog. Georum, p. 28. 

 Ilab. Etorofu, in the vicinity of Fnrubetsu. 



Distrib. Eastern Europe, northern Asia, northern and middle China, Corea, Japan, 

 North America, South America and New Zealand. 



84. Geum macrophyllum, Willd. Enum. I, p. 557; Torr. & Gray, Fl. N. Am. I, p. 421; 



Ledeb. Fl. Ross, n, p. 23; F. Schm. Fl. Sach. p. 120. G. japonicum, Scheutz, 

 Monog. p. 31 (not Thunb., and exel. Jap. plants). 

 Ilab. Kurile Islands {ex F. Schmidt). 



There is great confusion in this group of Geum, evidently caused by a striking simi- 

 larity in the character of the akenes and by a variability in the shape of the leaves and in 

 the pubescence. For instance a gradual transition is found between G. macrophyllum 

 and strictum. F. Schmidt denies even the value of the hairs on the receptacle as a reliable 

 distinguishing character among the Asiatic plants. 



Examination of a large number of the American specimens of these species in the Gray 

 Herbarium indicates that the receptacle of G. macrophyllum is always snbglabrous, or 

 at least very much less hairy than in the case of G. strictum. In G. macrophyllum, the 

 large and round-heart-shaped terminal leaflets of the radical leaves and also the bristly 

 hairiness of the stem and petiole are quite constant; while in G. strictum these characters 

 are exceedingly variable. 



N. J. Scheutz in his monograph of the genus Geum brings together G. japonicum, 

 Thunb., and G.macropb yll n m . Willd., as one and the same species. But there are many im- 

 portant points of difference between these two plants, which seem to prove very distinctly 

 that they are as distinct from each other as any two related species in this genus. G. 

 japonicum has softer and denser pubescence, and is generally more or less bent in a zig- 

 zag way; its upper cauline leaves are rounded and petioled and dentate, and not coarsely 

 serrate or doubly-serrate as in G. macrophyllum. The most important distinguishing 

 character is that the receptacle in the former is even more hairy than in G. strict inn, 

 though Scheutz describes it as glabrous or obscurely pubescent. 



Distrib. Widely spread in North America from the Atlantic to the Pacific coasts; 

 Aleutian Islands; Kamtschatka and Kurile Islands. 



85. Potentilla fruticosa, L., Sp. p. 495; Georgi, Besch. m, p. 1033; Ledeb. Fl. Poss. n, 



]>. 01; Torr. & Gray, Fl. N. Am. i, p. 445; Lehm. Rev. Pot. p. 10; Max. Mel. 

 Biol, ix, p. 157; Fr. & Sav. Enum. i, p. 133. 

 Ilab. Kurile Islands {ex Georgi). Shikotan, on hillsides and grassy places on the 

 beach. 



Distrib. Northern and western Europe, northern Asia, Himalaya, northern China, 

 northern and middle Japan, Saghalin and North America. 



The inhabitants of the northern Kuriles are said to drink a decoction of its leaves as 

 a tea. 



86. Potentilla fragarioides, L., var. stolonifera, Max. Mel. Biol. IX, p. 100: Hook. f.. Fl. Brit- 



Ind. ii, p. 351. P. stolonifera, Lehm. in Ind. Sem. H. Bot. Harnbg., 183)1 . n. 5, 

 and Revis. Pot. p. 44, 1. 15; Ledeb. Fl. Ross, n, p. 38. V. fragarioides, Schlecht. 

 & Cham, in Linnsea, \\, p. 25. 



