220 
DRYAS INTEGRIFOLIA. 
Entire-leaved Dryas. 
ICOSANDRIA POLYGYNIA._Nat. Ord. ROSACEA. 
Gen. Char— Ca^. 8-9-partitus, extus nudus, tubo sub concavo. Pet. 8-9. 
Stam. numerosa. Carpella numerosa, stylo terminali, demum in cau- 
dam barbato-pluraosam desinente. Semen ascendens. 
Herbae humillimcB,foliis indivisis, suhtus albo-tomentosis, Jloribus albis.-^DC. 
Dryas integrifolia ; foliis ovato-oblongis basi cordatis integerrimis vel 
inferne pauci-dentatis, marginibus revolutis, subtus vix venosis. 
Dryas integrifolia, Vahl, in Act. Soc. Hafn. v. iv. P. 2. p. 171.— Fl. Dan. 
t. 1216.~Brown, in Parry's Ist Voyage, App. p. cclxxviii— Hook, in 
Parry's 2d Voyage, App. p. 15.— Richardson, in Franklins Journ. 
Dryas tenella, Banks's MSS. in Herb. Pursh Fl. ofN. Am. v. i. p. 350. 
Root long, woody, descending, dividing at the top into two or more short 
branches, which are recumbent, clothed below with the vestiges of old 
kaves and at the extremity with more thickly crowded ones : these leaves 
are from ^ to f of an inch in length, between ovate and oblong, of a 
dark, shining green above, deeply veined, the margin revolute, entire, 
below the middle furnished with one or two teeth on each side, the 
base cordate; the under side pure white, with a short, thick down; 
the veins scarcely visible: petiole about as long as the leaf, with a long 
stipule on each side, which is adnate, for one-half or three-fourths of its 
length. 
Peduncle from the extremity of the short branches, erect, 2 or 3 inches tall, 
woolly, naked, or with one or two subulate, simple, or laciniated brac- 
teae. Calyx somewhat cup-shaped at the base, woolly, intermingled 
with deep purple glands, which turn black in drying, cut at the extre- 
mity into 8 or 9 spreading, linear, obtuse segments. Petals correspond- 
ing in number with the segments, oblong, obtuse, white. Stamens nu- 
merous, inserted at the base of the segments of the calyx, yellow. Fi~ 
laments short. Anthers 2-lobed, roundish. Pistib numerous, inserted 
at the bottom of the cup-shaped calyx. Germen oblong, nearly gla- 
brous, terminating in a filiform hairy style. Stigma obtuse. The ripe 
fruit is similar to the pistil, except that the style is very much more 
lengthened out, flexuose, and clothed with long pateist hairs. Seed 
erect, oblong. Embryo of the same shape, radicle inferior. 
VOL. in. 
