670 



PYROLACEAE. 



Vol.. 11. 



Pyrola asarifolia Michx. Liver-leaf Wintergreen. Fig. 3201. 



Pyrola asarifolia Michx. Fl. Bor. Am. i : 251. 1803. 



Pyrola rotundifolia var. asarifolia Hook. Fl. Bor 

 Am. 2 : 46. 1834. 



Similar to the preceding species. Leaf- 

 blades reniform, usually wider than long, 

 coriaceous, shining above, obtuse at the apex, 

 cordate at the base, crenulate, i'-i¥ long, 

 usually shorter than their narrowly margined 

 petioles; flowers racemose, nodding, purple, or 

 rose, 6"-8" broad ; calyx-lobes triangular- 

 lanceolate or ovate-lanceolate, acute or acumi- 

 nate, about one-third the length of the obtuse 

 petals; stamens and style decurved-ascending; 

 anther-sacs slightly beaked; style exserted; 

 capsule about 3" in diameter. 



In wet woods and swamps, New Brunswick to 

 Yukon Territory, south to Massachusetts, north- 

 ern New York, Michigan, South Dakota, and in 

 the Rocky Mountains to New Mexico. June-July. 



6. Pyrola ox3rpetala Austin. Sharp-petaled 

 Wintergreen. Fig. 3202. 



Pyrola oxypetala Austin; A. Gray, Man. Ed. ,■;, 302. 1867. 



Scape slender, y'-g' high, about 9-flowered. Blades ovate, 

 coriaceous, dull, acute or acutish at the apex, narrowed at 

 .the base, obscurely crenulate, /"-lo" long, shorter than 

 their petioles; flowers racemose, ascending, greenish, 4"-s" 

 broad; bracts shorter than their pedicels; calyx-lobes tri- 

 angular-ovate, acute, about one-third the length of the 

 elliptic-lanceolate acuminate connivent petals; stamens and 

 styles slightly declined ; anther-sacs slightly horned. 



Hills, Deposit, Delaware Co., N. Y. (C. F. Austin, i860). 

 The only station known, and the plant not subsequently col- 

 lected. Perhaps a sharp-petaled race of P. chlorantha. June. 



7. Pyrola minor L. Lesser Wintergreen. 

 Fig. 3203. 



Pyrola minor L. Sp. PI. 396. 1753. 



Scapes slender, 8' high or less, several-flowered. 

 Leaf-blades rather thin, broadly oval, or nearly 

 orbicular, dark green, crenulate, obtuse but some- 

 times mucronate at the apex, rounded, slightly nar- 

 rowed, or subcordate at the base, 9"-i8" long; 

 flowers racemose, nodding, white or pinkish, 3"-4' 

 broad ; pedicels i"-2i" long, equalling or longer than 

 the bracts ; calyx-lobes mostly triangular-ovate and 

 acute, much shorter than the connivent petals ; style 

 straight, included ; stamens not declined, connivent 

 around the pistil; petals oval or orbicular, obtuse; 

 capsule about 2V in diameter. 



In woods, Greenland and Labrador to Alaska, south 

 to northern New England, Ontario, Michigan and Oregon, 

 south in the Rocky Mountains to New Mexico. Also in 

 Europe and Asia. Wood-lily. Shin-leaf. June-Aug. 



