259 



CUPULIFERjE. 



232. Betula alba, L., snbsp. latifolia, vai*. Tauschii Kegel! ill Bull. Mosc. 1865, p. 3!)!), 1.7, 



f. 11-14, and in DC. Prodr. xvi, p. 165 ; Fr. & Sav. Enum. I, p. 155. 

 //(//>. Etorofu, al Shibetoro, and Arimoi. 



Distrib. Middle and northern Japan, Manchuria and Siberia, at NTasimovo, and by 

 Lake Baical. 



233. Betula Ermani, Cham, in LinnSBfl, VI, ]). 537, t. <>, ('. D; Ledeb. PI. Ross, in. p. 653; 



Trautv. & Mey. PI. Och. p. 83: Keg. & Til. PI. Ajan. p. L19; Trautv.in Max. 

 Prim. Fl. Amur. p. 252; Kegel, in DC. Prod, xvi, p. 176. — Yar. typica, Reg. 

 Bull. Mosc. 1865, p. 415; Max. Mel. Biol, xn, p. 923. 

 Hah. Etorofu, at Purnbetsu and NTobori on the Arimoi side. 



Distrib. Aleutiau Islands, Kamtschatka, the Kurile Islands, and Yezo; Nemuro! and 

 Saruru Sands! 



The species is distributed in several forms in eastern Siberia, Kamtschatka and ad- 

 jacent islands, Manchuria, Saghalin, and northern and middle Japan. 



234. Alaus viridis, DC. Fl. Fr. [n, p. 304.— Yar. sibirica, Kegel in Bull. Mom-. 1865, p. 



422, and in DC. Prodr. xvi, p. 182; Pr. & Sav. Enum. [, p. 456. Alnaster fruti- 

 cos«s,Ledeb.Fl.Koss. tn, p. 655; Trautv. & Mey. Fl. Och. p. 85; Trautv. inMax. 

 Fl. Amur. p. 257; F. Schm. PI. Sach. p. 175. 

 Hdb. Kurile Islands (ex Pallas). Etorofu, at Xobori, on the Arimoi side. 

 Distrib. Alpine districts of Europe; Siberia from the Ural to Kamtschatka; Dahu- 

 ria, Manchuria, Saghalin, northern and middle Japan, the Aleutian Islands, northern 

 Is'orth America and Greenland. 



235. Alnus incana, Willd. Sp. IV, p. 335. — Yar. hirsuta, Spach, Rev. Bet. in Ann. Sc. ]STat. 



scr. 2, xv, p. 207; Ledeb. Fl. Eoss. ni, p. (550; Reg. in Bull. Mosc. 1865, p. 434, 

 and in DC. Prodr. xvi, p. 189; Trautv.in Max. Fl. Amur. p. 258; F. Schm. Fl. 

 Sach. p. 175. 



Hah. SMkotan, on hillsides. Kurile Islands (ex Georgi). 



Distrib. Yezo, Saghalin, Kamtschatka, eastern Siberia, Manchuria and Dahuria. 

 The species is widely distributed in Europe, northern temperate Asia and North 

 America. 



236. Quercus grosseserrata, Blume, Ann. Mus. Lugd.-Bat. r, p. 306; DC. Prodr. xvi, p. 



16. Q. crispula, var. grosseserrata, Miq. Ann. Mus. Lugd.-Bat. i, p. 104; Fr. 



& Sav. Enum. i, p. 446. 

 Hcib. Etorof u, at Furnbetsu and Xobori on the Arimoi side. 

 Distrib. Japan. 



The absence of fruit in the original specimens very naturally led Miquel to unite tins 

 species with Q. crispula, for there is certainly a close resemblance in their leaves. The 

 fruit of Q. crispula is, however, very different from that of Q. grosseserrata. In the 

 former the cup is deeper, embracing about half the cylindric nut, falling oft* with it when 

 ripe; Avhile in the latter the cup is hemispherical, enclosing about one-third of the ovoid- 

 oblong nut which falls off" free when ripe. 



8 



