2S0 MONOGRAPH OF THE GENUS PYROLA. 
twice the length of the leaves. The scape is triquetrous, 
never convolute. The raceme is erect, elongated, 12 to 16 
flowered ; flowers distant, cernuous, white, without any tinge 
of red, larger than those of P. media, emitting a fragrant 
smell, particularly in serene warm weather. The P. rofundi- 
Jhlia has very frequently been confounded with the media of 
SwAETZ, which is much the most common, at least in Great 
Britain. The figures Flora Danica, and Blackwell, and 
the synonym of Ray, and perhaps also those of Hudson and 
WiTHEEiNG, belong to P. media. The P. rotundifolia is 
certainly not found in the places enumerated by the two 
last-mentioned authors, but only P. media and minor. It 
differs from media by its longer stamens, which are directed 
to the upper part of the corolla ; its style being twice longer, 
declined, with a thickened recurved apex ; the stigma being 
annulate, with a 5-toothed disk ; the lacini^ of the calyx be- 
ing lanceolate ; the petals being white, without any tinge 
of red. The scape is never convolute, as in media. The 
leaves often scarcely exceed in length the half of the petiolesc 
In the figure in English Botany, the flowers are erro- 
neously made to spread too much, and the petals acute ; 
the petioles also are quite too short. 
% P. asarifolia, foliis reniformibus coriaceis repando- 
crenatis petiolo dilatato duplo brevioribus, scapo acute tri» 
quetro, racemo multifloro, laciniis calycinis ovatis acumina- 
tis appressis, stigmate clavato : disco elongato 5-lobo. 
P. asarifolia, Mich. Amer. 1. p. 251 Lam. Encycl. 5. p. 743.— -Per^ 
soon, Synop. 1. 483.—Pursh, Amer. Sept. 1. p. 29.9. 
Asarum-leaved Wintergreen. 
Habitat inpinetis Canadse (Michaux, Pursh), in sylvis 
fagorum montosis Pennsylvania^. Pursh. 'U. (v. s. in 
Herb. Lamb.) 
