364 



homonym of Humboldt, Bonpland and Kunth, which was pub- 

 Hshed, however, three years later. 



In his discussion of this plant in Pittonia, ii. 62, Professor 

 Greene adopts the name of Beck and Tracy and I have followed 

 him in alluding to it, but the Kew specimen from Dr. Torrey and 

 a glance at the second edition of Eaton's Manual are conclusive 

 proof that we have been wrong. 



The arctic and Rocky Mountain plant, R. Purs/m, Richards, 

 Frank. Journ, 741 (1823); R limosus, Nutt, R. miiltifidus, var. 

 repens, S. Wats., appears to me to be specifically distinct. It is 

 a creeping, pubescent, uliginous species with smaller flowers and 

 smaller achenes which have an acutish back, and the style is 

 slender ; R. delpJiinifolius is normally strictly aquatic, glabrous, 

 its achenes have a thickened, almost winged margin, and the style 

 is flat and broadened at the base. It develops broader leaf-seg- 

 ments when the water in which it habitually grows becomes low 

 and the plants thus become emersed. 



It should be added that a specimen from Dr. Torrey, labelled 

 R. laciLstris, Beck and Tracy, is preserved in the Philadelphia 

 Herbarium, and is the same species as R. multifidus, Pursh, 

 which may be further proven by the figure of R. lacnstris pub- 

 hshed by Beck and Tracy in Trans. Albany Inst. i. plate V. I 

 have not access to a copy of the first edition of Eaton's Manual. 



Ranuncultis trie hop hylhcs, Chaix, in Vill. Hist. PL Dauph. i. 

 335 (1786). 



R. aquatilis, var. trichophyllus, A. Gray, Man. Ed. 5, 40 

 (1867). 



I think this should rank as a species rather than a variety of 

 R. aquatilis, L., which only exists in America, as far as known, 

 in the far northwest, where it is represented by the var. Jictero- 

 phyllns, as pointed out by Dr. Gray. 



Hypericum mutihun, L. Sp. PI. 787 (i753)- 



Ascyriiin Crux-Andre<2, L. loc. cit. 



While it may, perhaps, be ascribed to a blunder in the make- 

 up of the first edition of the "Species Plantarum," there is no 

 doubt whatever that Linnaeus described the. same plant as two 



