165 



N. Ord. ERICACEAE. 

 Tribe Pyrolea:. 



Genus Chimaphila,* Pursh. DC. Prod., vii, pp. 775. Species 

 3, natives of the northern parts of both hemispheres. 



165. Chimaphila corymbosa, Pursh, Fl. Am. Sept., i, p. 300 



(1814). 



Winter-green. Pipsissewa. Princes Pine. 



Syn. Pyrola umbellata, Linn. Chimaphila umbellata, Nuttall (1818). 



Figures. Barton, i, 1. 1 ; Bigelow, ii, t. 21 ; Steph. & Oh., t. 93 ; Wood- 

 ville, vol. v ; Hayne, xiii, 1. 13 ; Fl. Danica, 1. 1336 ; Bot. Mag., t. 778 ; 

 Nees, Gen. Fl. Germ.; Schnitzlein, Iconogr., t. 161. 



Description. A sub-herbaceous or slightly woody perennial, 

 with long running semi- subterranean shoots and ascending stems 

 4 10 inches high. Leaves evergreen, arranged in 1 5 irregular 

 whorls which are closely placed on the short stem, very shortly 

 stalked, lanceolate or obovate-lanceolate, tapering at the base, acute, 

 serrate, thick, convex and glossy above, paler below. Flowers 

 4 8, forming a small terminal umbel or corymb, nodding on longish 

 stalks, pedicels with narrow small bracts about the middle. Calyx 

 small, with 5 blunt divisions, persistent. Petals 5, much longer 

 than the calyx, rounded, concave, flesh-coloured. Stamens 10, 

 hypogynous, free ; filaments with a double curve, convex fleshy and 

 much dilated with a fringed margin in their lower half, concave and 

 filiform in the upper half ; anthers violet-coloured, 2 -celled, attached 

 by their middle, opening by two round orifices at the narrow some- 

 what horned base, which, by a tilting-up movement of the filaments, 

 becomes the apparent apex. Carpels 5 ; ovaries slightly con- 

 nected laterally, arranged round the large conical spongy receptacle, 

 walls thin, ovules very numerous, placed all over the large axile 

 placentas ; style very short, obversely conical, nearly immersed in 



* Name from x"/* a > winter, and 0i\a v, to love, a translation of " winter 

 green." 



