365 
species in different genera on the same page. This has been in- 
dicated by Torrey and Gray, (Fl. N. A. i. 672). The specimen 
described by Plukenet (Mant. 104), as “ Hypericoides ex terra 
Mariana floribus exiguis luteus’ on which Linnzus based his A. 
Crux-Andree, is preserved in the Sloane Herbarium, (vol. 92, p. 
85), at the British Museum of Natural History, and is Hypericum 
mutilum, while the specimens of Gronovius, on which he based 
HT. mutilum, are in the general herbarium of the same institution. 
The plant taken up by Torrey and Gray for A. Crux-Andre@ is 
A. hypericoides, L. Sp. Pl. 788, as evidenced by the Gronovian 
specimen on which it is based, fortunately also preserved. 
President Coulter, in his paper on the North American Hype- 
ricacez (Bot. Gaz., 1886, 80), has maintained that we have two 
closely related species of Ascyrum, associating specimens from the 
southern states with the tropical American plant which Linneus 
took up for his A. kypericotdes in the second edition of his Spe- 
cies Plantarum (p. 1108), basing it on specimens sent him by P. 
Browne from Jamaica, one of which is preserved in his herba- 
rium. However, whether we have one species or two, the north- 
ern plant is the original A. hyfericoides, and should bear that 
name. All the specimens in the Columbia College Herbarium, 
including many from Florida, are readily referable to it, and dif- 
ferent from the West Indian and Central American species. 
Hypericum Canadense, L., var. minimum, Choisy in DC. 
Prodr. i. 550. 
The type of this is preserved in the “ Prodromus Herbarium ”’ 
at Geneva. Itis a fragment of a three-styled species with narrow 
leaves, not satisfactorily referable to H. Canadense, though it 
may as well be that as anything else, and its origin is unknown. 
From Choisy’s remarks at the place of publication, he apparently 
thought it was Mexican. In any event it is not at all the North- 
ern plant with oval or orbicular lower leaves which has been re- 
fered to it, and which may be called H. Canadense, var. 
BOREALE, 
Potentilla Canadensis, L. Sp. Pl. 498 (1753). 
Potentilla simplex, Michx. F1. Bor. Am. i. 303 (1803). 
P. Canadense, var. simplex, T. and G. Fl. N. A. i. 443 
(1840). 
