226 



66. Vicia unijuga, AI. Braun, App. [nd. Sem. Hort. Berol. 1853, p. 12; Max. Mel. Biol. 



ix, |>. (>:"). Orobus lat7iyr<rides, L.; Ledeb. PI. Ross, r, p. 688; P. Schm. PI. Sach. 

 p. 124. O.japonicus, Sieb. Toelicht. tol de ontd. v. Vries, p. L55. Lathyrus Mes- 

 serschmidii, Fr. & Sav. Enum. t, p 106. 

 Ilab. Etorofu, in roadside thickets in the vicinity of Shana. 



The plant is very common on plains and in thickets in Yezo and the northernand mid- 

 dle provinces of the main island of Japan. Towards the south it is found only in alpine 

 woods. It also grows in Sakhalin, Manchuria, Corea and northern China, extending 

 westward to the Altai region of Siberia. 



67. Vicia Cracca, L.j Ledeb. PI. Ross. r,p. 674; Tbrr. & Gray, PI. \. Am. i,p. 270;Max. 



Prim. Fl. Amur. p. 82; Miq. Prol. p. 238. 

 Ilab. Shikotan. Etorofu, at Tsurubetsu, and Shana. 



This variable species is widely distributed throughout the temperate and subarctic re- 

 gions of the northern hemisphere. 



68. Vicia amoena, Fisch. in DC. Prodr. n, p. 355; Ledeb. Fl. Ross, t, p. 672; Max. Prim. 



Fl. Amur. p. 81; F. Schm. Fl. Sach. p. 124; Fr. & Sav. Enum. I, p. 104, a, p. 

 381. 



Hob. JEtorofu, in thickets around Arimoi. 



In Saghalin, the plant is said to be common on the whole western coast south of Dui. 

 It is also widely distributed in the island of Yezo, and in the northern and middle parts 

 of the main island of Japan. On the continent, it spreads through the entire length of 

 Siberia from the Ural region toKamtschatka, and extends southward to Corea and north- 

 ern China. 



69. Lathyrus maritimus, Bigel. Fl. Bost. 2nd. ed. p. 268; Ton*. & Cray, Fl. N". Am. i, p. 



273; Miq. Prol. p. 233; F. Schm. Fl. Sach. p. 124; Max. Mel. Biol, ix, p. 60. 

 Pisum maritimum, L.; Ledeb. Fl. Ross, i, p. 661. 

 Hob. JJrupl (eajMax.). Shikotan, in sandy beaches at the foot of cliffs. Etorofu, at 

 Rubetsu and Shana. 



Very widely distributed in arctic and temperate Europe, Asia and North America. The 

 most southern locality for this plant in the northern hemisphere, so far as I am aware, 

 is in Japan, where it comes down to the vicinity of Nagasaki (about 32° N. lat.). 



According to Hooker, a similar plant was collected at Cape Tres Montes in Patagonia 

 by Darwin. From the wild and desolate nature of the place, and from the utter absence 

 of other introduced plants, he concludes that it could not have been imported into this 

 locality, "one of the most remote and little visited spots of the American continent." Fl. 

 Antarc, n, p. 260. 



70. Lathyrus palustris, L., var. pilosus, Ledeb. Fl. Ross. I, p. 686; Max. Prim. Fl. Amur. 



p. 83; F. Schm. Fl. Sach. p. 124; Max. Mel. Biol, ix, p. 61. 

 Hob. In swampy places; Etorofu, at Rubetsu and Shibetoro. 



The present variety of this variable and widely distributed species ranges throughout 

 the northeastern part of Asia and adjacent islands, and also in Alaska (Kellogg, U. S. 

 Coast Survey, 1867). It is very common throughout the island of Yezo; but so far, no 

 definite localities have been given for it in the main island of Japan. The plant is be- 



