2 1 5 



pubescence. The only points of difference between them, which [can find in the few 

 specimens before me, arc that the sepals are perfectly smooth on both sides in the Jap- 

 anese plant, and that the peduncles are shorter than the leaves. 'The ovaries are still 



too young to show decidedly whether they are sessile or stipitate. They are covered 

 with silvery appressed hairs; and the styles are elongated, cylindrical, smooth and erect. 

 Doubtless the plant is much more closely related to A. umbrosa than to any ot her species. 

 The character of its ripened carpels would set t le the point, whether it is to be considered 

 as a variety oft hat .species or as distinct. 



7. Anemone narcissiflora, L. Sp. p. .112; Ledeb. Fl. Ross, r, p. 18. — Var. villosissima, DC. 



Prodr. r, p. 22; Kegel, PI. Radd. r, p. 18; F. Schm. Fl. Sach. p. 104. 

 TJab. Etorofu, in an exposed moist field near Rubetsu. 



Distrib. In the arctic and alpine regions of Europe and Asia, extending to Alaska, 

 and the Rocky Mountains. 



8. Ranunculus japonicus, Langsd.; Fisch. in DC. Prodr. I, p. 38; Max. Fl. As. Or. Fragm. 



i, p. 3; Forhes & Hemsley, Index Fl. Sin. p. 14. R. ternatus, DC, etc. (not 

 Thunb.). R. Sieboldi, Miq. Prol. Fl. Jap. p. 193. R. Vemyi, Fr. & Sav. 

 Bnum. i, p. 8, n, p. 2(H). 

 Ilab. Etorofu, at Shana. 



The plant is closely related through some of the allied species growing on the conti- 

 nental side of Asia to R. jtennsylvanicus of North America, of which, by a high author- 

 ity, it is considered a variety. 



However variable our plant is in many of its minor characters, incident to its great 

 range of stations from the roadside ditch to the cold wet mountain woods, extending from 

 the Loo Choo Islands to the Kuriles, yet there are some important characters which are 

 constant at least within our insular limits. In these important characters, it differs dis- 

 tinctly from the typical Ranunculus ptennsylvanicus. 



In the latter, the akenes are provided with short, stout, and straight or slightly curved 

 beaks, and are arranged in oblong or cylindraceous heads; and the petals are small, not 

 surpassing the reflexed calyx. In R. japonicus, the akenes are provided with beaks which 

 are attenuated and uncinate or subuncinate at the tip, and broad and flat at the base; they 

 are arranged in globose heads; and the petals are larger, surpassing the recurved calyx. 

 Considering all characters, our plant is more nearly related to R. hispidus, as charac- 

 terized by Dr. Gray in his Revision of the N. Am. Ranunculi (Proc. Am. Acad, xxr, p. 

 37o), than to R. pennsylvanicus, L. f. 



9. Ranunculus acris, L.; Ledeb. Fl. Ross. I, p. 41; Reg. & Til. Fl. Ajan. p. 32; Reg. Fl. 



Uss. p. 7. R. japonicus, Thunb. Trans. Linn. Soc. in, p. 337. R. propinquus, 

 C. A. Mey. in Ledeb. Fl. Alt. in, p. 332; Ledeb. Fl. Ross. I, p. 41. R. propinquus, 

 var. hirsutus, A. Gray, Bot. Jap. p. 378. 

 Hab. Etorofu, at Tsurubetsu, Shana and Shibetoro. 



Distrib. Europe, northern Africa, northern and middle Asia, Japan, Greenland? and 

 Newfoundland? 



10. Trollius patulus, Salisb. Trans. Linn. Soc. VIII, p. 303; Ledeb. Fl. Ross. I, p. 50; 



Reg. & Til. Fl. Ajan. p. 36. Trollius japonicus, Miq. Prol. Fl. Jap. p. 194. 

 Var. genuinus, 1. pedunculatus, Reg. & Til. I. c. 



