216 
in company with P. maritimum, with which it has always been 
confounded here. PP. maritimum is common to-.both Europe and 
America, and there is no reason why P. Rayi should not be also. 
It is true that this species is closely related to P. maritimum, but 
it can readily be distinguished by the more acute achene which 
protrudes farther beyond the calyx, by the longer internodes, the 
flat and fewer veined leaves, and the few veined ocreez. The whole 
plant is also less glaucous. We now have it well represented in 
British America, as: the following stations will indicate: sea 
beaches, Brackley Point, Prince Edward Island (Macoun) ; sandy 
beaches, Bass River, N. B. (Fowler); Jupiter River, Anticosti, P. 
Q.(Macoun). The most interesting locality is Qualicum, Van- 
couver Island (Macoun). 
PoLtyconum AusTIN#, Greene. The range of this once ob- 
scure species is gradually being brought to light. Sometime after 
its discovery on the sage-brush plains in Northern California by 
Mrs. Austin, the plant was picked up by the U. S. Geological 
Surveys in the Yellowstone Park, Wyoming. This specimen 
found its way to the National Herbarium at Washington and re- 
mained there undetermined. I now find that the species was 
discovered in British America by Dawson at South Kootanie 
Pass, On the Rocky Mountains, one year previous to its collec- 
tion in California. This specimen is preserved in the Herbarium 
of the Geological Survey of Canada, having been erroneously de- 
termined as P. zenue, var. latifolium. P. Austine is a remarkably 
clear species, holding the characters given to it originally by Prof. 
Greene (Bull. Cal. Acad. Sci. i. 212), with one minor exception. 
I find that often the achene at maturity slightly surpasses the calyx. 
Po_yconuM KeLLoccu, Greene. Before my preliminary paper 
on the genus was printed I had not seen Prof. Greene’s type 
nor a specimen of what he referred to his new species. Being 
- thus unable to tell exactly what he included under P. Kelloggu, 
I temporarily placed all forms related to P. iwzbricatum under 
that species. As I have lately become fully acquainted with 
this plant I can now map out the following geographical 
range for it—Washington; Shamania County (Suksdorf): Cali- 
fornia; Modoc county (Mrs. Austin), Lake County, Snow moun- 
tains (Brandegee), Donner Lake, Mariposa County, Yosemite 
