364 — 
homonym of Humboldt, Bonpland and Kunth, which was pub- 
lished, however, three years later. 
In his discussion of this plant in Pittonia, ii. eu 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. Purshii, Richards, 
Frank. Journ, 741 (1823); R “émosus, Nutt., R. multifidus, 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 ; 2. delphinifolius 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. lacustris, Beck and Tracy, is preserved in the Philadelphia 
Herbarium, and is the same species as Rk. multifidus, Pursh, 
which may be further proven by the figure of R. dacustris pub- 
lished 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. 
Ranunculus trichophyllus, Chaix, in Vill. Hist. Pl. Dauph. i. 
335 (1786). 7 
R. aquatilis, var. trichophyllus, A. Gray, Man. Ed.. 5, 40 
(1867). 
I think this should rank asa 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. hefero- 
phyllus, as pointed out by Dr. Gray. 
Hypericum mutilum, L. Sp. Pl. 787 (1753). 
Ascyrum Crux-Andree, LL. 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 Linnzus described the same plant as two 
