FLORA OF THE KURILE ISLANDS. 217 



Hah. Urtq)/ (exMax.). 



Distrih. Arctic Europe, Asia and ]S^orth America; in the alpine regions of central 

 Asia and western ZsTortli Amei-ica. 



17. Barbarea vulgaris, R. Br. Ilort. Kew. ed. 2, iv, p. 109; Ledel). FI. Ross, i, p. 114; 



Regel, PL Radd. i, p. 153; Torr. & Gray, Fl. ^ST. Am. i, p. 75; Fr. & Sav. Enum. 

 I, p. 32, II, p. 278. 

 Hah. Etorofii, at Rulietsu. 



Distrih. Europe, northern and southern Africa, northern and temperate Asia to 

 Alaska and western I^orth America. Naturalized in the eastei'n United States. 



18. Arabis Stelleri, D.C. Syst. II, p. 242; Ledeb. Fl. Ross, i, p. 122. — Yar. japonica, F. 



Schm. Fl. Sach. p. Ill; Fr. & Sav. Emmi. i, p. 33, ii, p. 278. Arahis aljnna (?), 

 \i\v. japonica, A. Gray, Pi. Jap. p. 307. A. japonica, A. Graj^, Bot. Jap. \). 381. 



Hah. Etorofu, at Rubetsu. 



Distrih. Sag-halin, northern and middle Japan, Corea, Manchuria, Kamtschatka to 

 the Aleutian Islands. 



19. Arabis lyrata, L. Sp. p. G65; Torr. & Gray, Fl. N". Am. i, p. 81; DC. Prodr. i, p. 



146; A. Gray, PI. Jap. p. 307; Fr. & Sav. r, p. 33. 



Hah. Shil'ofan, on rocky cliffs along the beach. 



Distrih. Middle and noi'theru Japan, and in North America: Canada to Virginia and 

 Lake Superior, and westward in the Pacific I'egions, as var. occidentalis, Watson, 3IS. 

 (A. amhigua, DC, in part). 



20. Arabis ambigua, DC. Syst. ii, p. 231; Ledeb. Fl. Ross. I, p. 120; Trautv. & Mey. 



Fl. Ochot. p. 14; Reg. & Til. Fl. Ajan. p. 4G. A. himtschatica, Fisch. in DC. 

 Syst. II, p. 231 (as A. lyrata, ,3.) ; Ledeb. Fl. Ross, ii, p. 121. A. iMraia, fi-s, 

 Regel, PI. Radd. i, p. 166. 

 Hab. Kurile Islands (ea; DC). Urup) ! (ea;Max.). 



Distrih. Ochotsk region, northeastern Manchuria, Saghalin, Kurile Islands and Kamt- 

 schatka. 



Probably this plant does not differ from Dr. S. Watson's var. occidentalis of A. lijrata. 

 The specimens from Alaska and the Aleutian Islands, and also those which were collected 

 in Kamtschatka by C Wright, and which were variously referred to A. amhigua and 

 Icamtschatica, are all considered by Di*. Watson as belonging to his variety of ^. lyrata. 



21. Arabis perfoliata, Lam. Diet, i, p. 219; Fr. & Sav. Enum. i, p. 34. Tnrritis glahra, 



L. Sp. p. 666; Ledeb. Fl. Ross, i, p. 116. 

 Hah. Etorofu, at Arimoi. 

 Distrih. Europe, temperate Asia, and N. America (W. and E.). 



22. Cardamine pratensis, L. Sp. p. 656; Ledeb. Fl. Ross. l, p. 125. — Var. prorepens, Max. 



Mel. Biol. IX, J). 6. C. prorepens, Fisch. in DC. Syst. ii, p. 256; Ledeb. I.e. p. 125. 

 Hah. Kurile Islands ! (Ilerl). Fisch.) 



Distrih. Eastern Siberia, Dahuria, Manchuria, and Kurile Islands. 

 The species is circumpolar in its distribution. 



23. Draba hirsuta, Turcz. in Bull. Mosc. 1840, p. 64; Ledeb. Fl. Ross. T, p. 755. 

 Hah. Kurile Islands (e.t Turcz.). 



