260 



An examination of a very large number of specimens from different parts of Japan, 

 Manchuria and China, shows a great similarity between Q. grosseserrata and Q. mongo- 

 Uca, Fiseh., of Sakhalin and the main lands. There are slight differences in the charac- 

 ters of the eup-scales and of the foliage, but seareely more than sufficient to make them 

 merely varieties of one species. 



SALICACE2E. 



237. SalixCaprea, L. Sp. p. 1020; Anders, in DC. Prodr. xvi, 2, p. 222; Ledeb. Fl. 



Ross, in, p. 609; Max. Fl. Amur. p. 243 ; F. Schm. Fl. Sach. p. 173; Keg. Tent. 



Fl. Uss. p. 131 ; Trautv. & Mey. Fl. Och. p. 78 ; Kegel & Tiling, Fl. Ajan. p. 117. 

 Hub. ShiJcotan, on hillsides. Eioi'qfu, at Furubetsu and Nobori. 

 Distrib. Europe, western Asia across the northern and central portions to eastern 

 Siberia, Manchuria, Saghalin and northern Japan. 



238. Salix stipularis, Sm. Fl. Brit, u, p. 1069; Ledeb. Fl. Koss. in, p. 605; Anders, in 



DC. Prodr. xvi, 2, p. 266; Turcz. Fl. Baic.-Dah. n, p. 107; Max. Prim. Fl. Amur, 

 p. 243; F. Schm. Fl. Sach. p. 172. 

 Hob. Etorofu, between Arimoi and Shana. 



Distrib. Europe; northern Asia to Manchuria, Saghalin and Yezo. 



239. Populus tremula, L. Sp. p. 1034. — Yar. villosa, "Wcsmael in DC. Prodr. xvi, 2, p. 



325; Max. Fl. As.-Or. Frag. p. 49; Fr. & Sav. Enum. i, p. 463. P. villosa, 

 Lange. in Reichb. Icon, xi, p. 30, t. 617, f. 1273. 

 Ilab. Etorqfu, near Tsurubetsu and at Shibetoro. 



Distrib. Middle Europe; northern and middle Japan. The species is distributed 

 over the greater part of temperate Europe, northern Africa, and northern Asia to Man- 

 churia and Saghalin. 



EMPETKACEiE. 



240. Empetrum nigrum, L. Sp. p. 1022; Ledeb. Fl. Ross, in, p. 555; DC. Prodr. xvi, 1, 



p. 25; Pallas, Fl. Ross, i, 2, p. 49; F. Schm. Fl. Sach. p. 171; Fr. & Sav. Enum. 

 i, p. 429. 



Hab. Kurile Islands (ex Pallas). Shumshu (J. Akakabe, and Hakodate Museum). 

 Etorofu, at Shibetoro. Kunajiri (middle Nakamura). 



Distrib. Arctic and alpine regions of the northern hemisphere; the Andes and ant- 

 arctic America, extending to the islands of Tristan d'Acunha. 



GYMJSTOSPERMiE. 



CONIFEEJE. 



241. Juniperus communis, L.; Pall. Fl. Ross. I, 2, p. 12, t. 54; Ledeb. Fl. Ross, in, p. 



684; Carr. Conifer, p. 21; Parlat. in DC. Prodr. xvi, 2, p. 479; Max. Fl. Amur, 

 p. 260; F. Schm. Fl. Sach. p. 178; Masters, Conifers of Japan, p. 497. 



