from the shores of Davis’ Straits. 173 
img to connate, each almost an inch long, triangular, acute, 
broadish at the base; above the middle of the scape are produced 
two other leaves, alternate, of the same form, smaller in size, 
the lower being rather the larger, distant from each other about 
the third part of an inch, each being amplexicaul in the same 
degree as the two opposite leaves beneath. The leaves are ribbed. 
In one of the specimens these upper leaves are wanting, and in 
another they are opposite, like those below. The scape has a 
joimted appearance at the origin of the opposite leaves, and is 
somewhat inflated just below the flower. It is slightly striated 
and clothed, as the leaves also are, with soft hairs varying in 
length. The receptacle is round, slightly convex, distinctly 
pitted, the apertures minute but deep, of two sizes with a raised 
narrow margin, which is fringed with an evident pubescence. In 
the Linnzan definition of the genus Arnica, which has been fol- 
lowed by most authorities, the receptacle is represented as naked ; 
but DeCandolle says, “ receptaculum fimbrilliferum pilosiuscu- 
lum,” as exhibited in these Arctic specimens. The leaflets of the 
involucrum are in two rows, eleven in the outer row, eight in the 
inner ; those of the outer row ovate-lanceolate, nearly uniform ; 
those in the inner less regular, some being of the same form and 
size with the outer leaflets, while others are narrower and even 
shorter. The outer leaflets are near half an inch long, more 
hairy on their external surface than the scape, their outer sur- 
face and both surfaces of the inner leaflets being less hairy. The 
leaflets in both rows are deeply concave on their inner aspect, or 
rather cariate, with a middle rib. The ligulate florets are few 
compared with the number of tubular florets in the disc. They 
stand in a single row, and being eight in number, one seems to 
correspond with each of the inner leaflets of the involucrum. The 
pits or apertures in the receptacle answering to the insertion of 
these ligulate florets are wider than those from which the bases of 
the tubular florets arise, with the exception of two pits near the 
centre, which have the same diameter as those around its border. 
The ligulate florets are rather large and conspicuous, being an 
inch in height from the receptacle ; the lamina is broad, marked 
with several prominent, nearly parallel nerves, which branch off 
to bound the margis of the terminal teeth. The tubular florets 
are short, intermixed with the abundant pappus and overtopped 
by it: these are five-toothed. The style is forked in the florets 
of both dise and ray, the branches being long and pubescent, a 
part of DeCandolle’s character of the genus Arnica. The pap- 
pus is scabrous, the achenium hairy. 
Ericacez.—The Ledum palustre. 
Monorrorex#.—The Pyrola rotundifolia. 
ScROPHULARINEZ.—There are several specimens of Pedicus 
