pale-green above, and naked beneath, but, especially in the 
younger leaves, mealy ; for the mealiness generally disap- 
pears in the old leaves. Scape varying much in length, 
from two to four or six inches, naked above, mealy. Um- 
bel of from two to eight or ten flowers. Leaves of the 
involucre broadly subulate, gibbous below, mealy, as are the 
pedicels. Calyx ovato-cylindrical, with five blunt teeth, 
and as many ribs, mealy between the ribs. Tube of the 
corolla yellow, not much exceeding the calyx, the limb of 
five, spreading, almost cuneate and emarginate segments, 
the mouth yellow, with five short, yellow glands. Stamens 
included. Germen globose, green. Style rather shorter 
than the tube of the corolla, green. Stigma globose, yellow. 
Capsule cylindrical, half as long again as the calyx, burst- 
ing with retuse, upright teeth. 
When I published the present species under thé name of 
P. pusilla, 1 was doubtful whether it might not be the P. 
mistassinica of Micnaux, a species, indeed, very cursorily 
described by that author, and figured with ripe fruit only 
by the excellent Leaman. Now that I possess fructified 
specimens, I find them very nearly indeed to resemble 
Leuman’s figure; and it is certainly the species which 
Cuamisso gathered for the true mistassinica, and has de- 
scribed as such, as I have ascertained by a comparison with 
individuals received from him. It is nearly allied to P. 
Jarinosa and P. scotica, differing from both in the more 
spathulate and less mealy leaves. The leaves of the invo-. 
lucre I find to be nearly the same in all three. 
P. mistassinica inhabits North America from Canada as 
high as the Arctic Circle, and across to the North Western 
shores of that vast continent. Seeds have been distributed 
by Dr. Ricnarpson and Mr. Drummonp on their return 
from the second Land Arctic Expedition, and the plant is 
now in Mr. Nietx’s, and the Botanical Gardens of Edin- 
burgh and Glasgow, and doubtless in many other collections. 
It flowered in July. 
nein 
Fig. 1. Flower. 2. Pistil. 3. Involucre. 4, Capsule. 5, Single Cap- 
sule,—All but fig. 4 more or less Magnified. 
