GENUS i. 



WINTERGREEN FAMILY. 



2. Pyrola chlorantha Sw. Greenish-flowered 

 Wintergreen. Fig. 3198. 



P. chlorantha Sw. Act. Holm. 1810 : 190. pi. 5. 1810. 



Scape 4'-i2' high, 3-io-flowered. Blades orbicular, 

 or broadly oval, mostly obtuse at both ends, but 

 sometimes narrowed at the base, coriaceous, dull, 

 obscurely crenulate, or entire, i'-ii' long, shorter 

 than or equalling their petioles; flowers nodding, 

 slightly odorous, greenish-white, $"-7" broad; pedi- 

 cels 2"-3" long, mostly longer than their bracts ; 

 calyx-lobes ovate, or triangular-ovate, acute or 

 obtuse, about one-fourth the length of the obtuse 

 converging petals ; stamens and style declined- 

 ascending; anther-sacs short-beaked; style exserted ; 

 capsule about 3" in diameter. 



In dry woods, Labrador to British Columbia, south 

 to the District of Columbia, Illinois, Nebraska and in 

 the Rocky Mountains to Arizona. Also in Europe. 

 Shin-leaf. June-July. 



3. Pyrola elliptica Nutt. Shin-leaf. 

 Fig. 3199. 



Pyrola elliptica Nutt. Gen. i : 273. 1818. 



Scape 5'-io' high, 7-i5-flowered. Leaf-blades 

 broadly oval, or elliptic, thin or membranous, 

 dark green, obtuse, but usually mucronulate at 

 the apex, narrowed or rounded at the base, 

 plicate-crenulate with very low teeth, ii'-3' long, 

 almost always longer than their petioles; flowers 

 greenish-white, nodding, 6"-8" broad, very fra- 

 grant; pedicels longer than or equalling their 

 bracts ; calyx-lobes ovate-triangular, acute or 

 acuminate, about one-fourth as long as the 

 obtuse, flat petals ; stamens and style declined- 

 ascending; anther-sacs scarcely beaked; style 

 somewhat exserted ; capsule about 3" in diameter. 



In rich, mostly dry woods, Nova Scotia to Brit- 

 ish Columbia, south to the District of Columbia, 

 Illinois, Michigan, Iowa, South Dakota and in the 

 Rocky Mountains to New Mexico. Wild lily-of-the- 

 valley. June-Aug. 



4. Pyrola uliginosa Torr. Bog Winter- 

 green. Fig. 3200. 



Pyrola uliginosa Torr. Fl. N. Y. i : 453. pi. 60. 1843. 



Pyrola rotundifolia var. uliginosa A. Gray, Man. Ed. 

 2, 259. 1856. 



Scape 6'-i5' high, 7-i5-flowered. Leaf-blades 

 broadly oval, or orbicular, dull, rather thick, 

 obscurely crenulate, obtuse at both ends, some- 

 times truncate at the base, equalling or shorter 

 than their petioles ; bracts shorter than or equal- 

 ling the pedicels; flowers purple, s"-8" broad; 

 calyx-lobes ovate-oblong or ovate-lanceolate, acute 

 or obtuse, one-fourth to one-third the length of 

 the obtuse petals ; stamens and style declined- 

 ascending; anther-sacs beaked; style slightly 

 exserted; capsule about 2\" in diameter. 



In swamps and bogs, Newfoundland to Alaska, 

 Vermont, central New York, Michigan, in the Rocky 

 Mountains to Colorado, and to California. Similar to 

 the Asiatic P. incarnata Fisch., and perhaps not 

 specifically distinct from it. June-July. 



