230 K. I\I1YAI5K OX THE 



Fl. N. Am. I, p. 421; F. Schm. Fl. Sach. p.l2(3; Fr. & Sav. Enuin. i. p. 128, ii, p. 

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

 Ilah. l^torofu, in the vicinity of Furiibetsii. 



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

 IS^orth America, South Amei-ica and New Zealand. 



84. Geum macrophyUum, AVilld. Eniim. I, p. 557 ; Torr. & Gray, Fl. N. Am. I, p. 421 ; 



Ledeb. Fl. Koss. ii, p. 23; F. Schm. Fl. Sach. p. 12G. G. japonicum, Schentz, 

 Monog. p. 31 (not Thnnb., and excl. Jap. plants). 



Hcib. Kurile Islands (ex F. Schmidt). 



There is great confusion in this group of* Geum, evidently caused l)y a striking simi- 

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

 the pubescence. For instance a gradual transition is found l)etween G. macropliyUam 

 and stricfum. 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 (J ray 

 Herbarium indicates that the i-eceptacle of G. macropliyUuin is always suljglabi'ous, or 

 at least very much less hairy than in the case of G. strictiun. In G. inacrophijlliim, the 

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

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

 are exceedingly vai'iable. 



N. J. Scheutz in his monogi-aph of the genns Geum brings together G. japouicmn, 

 Thunb.,and G.macrophyUu,m,V^\\\(\.., as one and the same species. But there are many im- 

 ])ortant points of difference between these two plants, which seem to prove verj^ distinctly 

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

 japonicum has softer and densei- 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 doiibly-serrate as in G. niacropliijllinn. The most important distinguishing 

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

 thongh Scheutz describes it as glabrous or obscurely pubescent. 



Distrih. Widely spread in Korth America from the Atlantic to the Pacific coasts; 

 Aleutian Islands; Kamtschatka and Kurile Islands. 



85. PotentiUa fruticosa. L., Sp. p. 495; Gcorgi, Besch. iii, p. 1033; Ledeb. Fl. Ross, ii, 



]). 61; Torr. & Gray, Fl. N. Am. i, p. 445; Lehm. Rev. Pot. p. 16; Max. Mel. 

 Biol. IX, p. 157; Fr. & Sav. Enum. i, ]). 133. 

 Hah. Kurile Islands {ex Georgi). Shikotan, on hillsides and grass}' places on the 

 beach. 



Distrih. Northern and western Europe, northei'n Asia, Himalaya, northern China, 

 northern and middle Jaj^an, Saghalin and North America. 



The inhal)itants of the northern Kuriles are said to drink a decoction of its leaves as 

 a tea. 



86. PotentUla fragarioides, L., var. stolonifera, Max. Mel. Biol. ix.p. 160; Hook, f , Fl. iSrit- 



Ind. II, \). 351. P. stolonifera, Lehm. in Ind. Sem. H. Bot. Hambg., 1831, n. 5, 

 and Revis. Pot. p. 44, t. 15; Ledelj. Fl. Rt»ss. ii, p. 38. P. fragarioidrs, Schlcdit. 

 & Cham, in i/nuuea, ii, p. 25. 



