302 
it is commonly applied. As to P. angulata L.,* there has been 
some doubt as to whether it is is the same as P. angulata of our 
manuals or P. obscura Michx.+ Nees von Esenbeckf cited the 
latter as a synonym of P. angulata and for the plant that now 
goes under that name, he proposed the name P. ZinkianaS as 
the only available synonym, P. dubia Link,| was antedated by 
P. dubia Gmelin. One of the synonyms cited under P. angulata 
both by Linnaeus and Nees is * Alkekéngi indicum glabrum 
chenopodiifolio. Dill. Elth. p. 13,4 72, f. 72,” which figure gives 
a fair representation of the plant now known as P. angulata 
Linkiana (Nees) Gray.** Furthermore, the leaves of that plant re- 
semble those of Chenopodium viride, a statement that can scarcely 
be made with reference to P. obscura Michx. In my opinion 
P. Linkiana Nees is the true P. angulata. Dunal, in De Candolle's 
Prodromus,tt corrects Nees, stating that P. obscura Michx. is not 
a synonym of P. angulata L., but makes a mistake when he refers 
the former to his own species P. Hirsuta ft that is to P. pubescens 
L. He retains P. angulata and P. Linkiana as two distinct species, 
while Gray makes the latter a variety of the former. Hemsley, 
in Biologia Centrali Americana, regards P. Linkiana as a synonym 
of P. angulata. 
Physalis pubescens L.S$ and Physalis pruinosa LI are included 
in one species by Nees and Gray, although the former recognizes 
pruinosa as a variety. There are, however, two distinct species in 
the United States which might claim the name P. pudbescens, one 
diffuse, with small thin ovate leaves, which are sub-entire at least 
at the base; the other more or less erect, with large thicker leaves, 
which are coarsely sinuate-dentate and somewhat resemble those 
of P. heterophylla Nees, The former I take as P. pubescens L., the 
st. CS PI. 183, 1753. 
| Link, Enum. Hort. Berol. 1: 181. 1821. 
«| See foot note, Linnaea, 6: 471. 1831. 
** Proc. Am. Acad. 10: 64. 1874. 
