EEICACEiE. 143 



oblong-linear, curved, nearly or quite distinct petals. Sta- 

 mens- 10, as long as the rose-coloured corolla. Leaves alter- 

 nate, oblong, somewhat pubescent. Shrub. — Bogs and 

 damp barrens, from Montreal eastward. 



13. PY'KOIA, Tourn. WiNTEEGjtEEN. Siiin-i.eaf. 

 * Style straight, narrower tlian the 5-rayed atirjma. 



1. P. mi'nOF, L. Leaves roundish, slightly crenulate, 

 thickish, usually longer than the margined petiole. Eaceme 

 not one-siJed. Flowers white or rose-colour. Style short and 

 included in corolla. — Cold woods, Atl. Prov. and north- 

 ward. 



2. P. secun'da, L. Easily recognized by the flowers of 

 the dense .rctcevie being all turned to one side. Leaves oticsie. 

 Style long, protruding. — Rich woods. Var. pu'mila has 

 orbicular leaves, and is 3-8- flowered. — Peat -bogs and. 

 swamps. 



* * Style declined, tlie apex c^irved upward. Stigma liarrower than the 

 ring-lilce apexoffliestii^e. 



3. P. rotundifO'lla, L. Leaves orbicular, thick, shining, 

 usually shorter than the petiole, Calyx-loJ)e6 lanceolate. 

 Flowers white, or in var. inearna'ta rose-purple. — Moist 

 woods. 



Var. asarifo'lia* Hook., has round-reniform leaves, and 

 mostly rose-coloured petals. 



Var. uligino'sa, G-ray, has broadly ovate calyx-lobes, 

 mostly obovate dull leaves, and flesh-coloured petals. 



4. P. ellip'tica, Nutt. (Shin-m;af.) Leaves elliptical, 

 thirf, dull, usually longer than the margined petiole. Flowers 

 greenish-white; — Eich woods. , 



5. P. chloran'tha, Swartz, has small roundish dull 

 leaves, converging greenish- white petals, and the anther-cells 

 contracted below the pore into a distinct neck or horn. — Open 

 ■woods. 



14. MONE'SES, Salisb. One-plowekkd Pykola. 



M. uniflo'ra, Gr. (M. grandiflora, Salisb.) Leaves thin, 

 rounded, veiny, and serrate. Scape 2-4 inches high, bearing 

 a single white or rose-coloured flower. — Deep woods, .^ 



