233 



shrubs, ;i foot t<> three feel in heigh! in exposed places, as at Rubetsu and Shibetoro, or 

 attaining a heighl of eight to ten feel in sheltered places, as at Purubetsu and A.rimoi. 



Distrib. Manchuria, Eastern Siberia along the Ochotsk Sea I <> Kamtschatka, Saghalin, 

 middle and northern Japan, islands in the Behring Sea, Alaska to the Sierra Nevada 

 and Rocky Mountains (to Colorado), and eastward through British America to Labrador 

 and northern New England. 



SAXIFRAGACE^. 



94. Astilbe Thunbergii, Miq. Prol. Fl. Jap. p. 200; Fr. & Saw Enum. [, p. L43; Forbes 



& Hemsley, Index Fl. Sin. p. 2(5(5. Hoteia Thunbergii, Sieb. & Zucc. PI. Jap. 



Fam. Nat. a, p. 367. 

 Hab. JEJtorofu, al Purubetsu. 

 Distrib. Japan and central China. 



95. Saxifraga fusca, Max. Mel. Biol, vnr, p. 602; Fr. & Sav. Enum. I, p. 14G, ir, p. 354. 

 Hab. Etorofit, along a shady stream near Tsurubetsu. 



Distrib. Common in the island of Yezo, and rarely in the subalpine regions of middle 

 Japan. 



The plant is closely related to Saxifraga punctata, L., which grows in the subalpine 

 regions of northeastern Asia, extending to Alaska and the Rocky Mountains. 



96. Saxifraga reflexa, Hook. Fl. Bor.-Am. i, p. 249, t. 85; Engl. Monog. Saxif. p. 143; 



A. Gray, Proc. Am. Acad, xx, p. 11. S. Tilingiana, Kegel in Kegel & Til. Fl. 

 Ajan. p. 94; Engl. Monog. p. 142. 8. Sackalinensis, F. Schm. Fl. Sach. p. 133. 

 S. Virginit nsis, var. jezoensis, Franchet in Bull, de la Soc. Philom. de Paris, avril, 

 1888. 



Hob. Shikotan, on rocky cliffs. 



I have followed Dr. Gray in referring our plant as well as 8. Tilingiana to Hooker's 

 S. reflexa, which he distinguishes from 8. virginiensis by the following characters: — 

 " calyx re flexed in or after anthesis, almost free; pedicels all slender and longer than calyx; 

 filaments disposed to be upwardly dilated, sometimes conspicuously so," — I. c, p. 10. 

 There is a great variation in the nature and amount of the pubescence, and in the shape 

 of the leaves, with all gradations between the extremes. 



Distrib. Common in the middle and northern parts of Yezo, in southern Kuril es and 

 Saghalin; also in Eastern Siberia about Ajan; and in North America, from Arctic Alaska 

 southward along the northern Rocky Mountains, thence along the Cascades and the 

 Sierra Nevada to southern California. 



97. Saxifraga Merkii, Fisch. in Sternb. Kev. Sax. Suppl. I, p. 1, t. 1, f. 3, n, p. 19; Ser. in 



DC. Prodr. iv, p. 24; Engl. Monog. Sax. p. 208. 

 Hab. Second. Island (Paramushir) ! (exMax.). 



Distrib. About the Baikal Lake, Ajan (Small !) , Kamtschatka and the Ivnrile Islands ; 

 as var. Idsuroei, Engl., in the alpine district of middle Japan. 



98. Saxifraga bronchialis, L. Sp. p. 400; Ledeb. Fl. Ross, ir, p. 207; Hook. Fl. Bor.-Am. 



i, p. 254; Engl. Monog. Sax. p. 215. 



