550 



PYROLACEAE. 



[Vot. II. 



i. Pyrola rotundifdlia L,. Round-leaved 

 Wintergreen. (Fig. 2726.) 



Pyrola rotundifolia L. Sp. PI. 396. 1753. 



Scape 6 / -2o / high, 6-2o-flowered. Leaf-blades 

 orbicular or oval, spreading, obtuse, coriaceous, 

 shining above, crenulate, narrowed, rounded, 

 truncate or rarely subcordate at the base, 

 *%'-$' long, usually slightly longer than wide, 

 often shorter than their narrowly margined 

 petioles; flowers white, nodding, very fragrant, 

 7//_g// broad; pedicels 2"-3 // long, mostly longer 

 than their bracts; calyx-lobes oblong or lanceo- 

 late, about one-third the length of the obtuse 

 petals; stamens and style declined-ascending; 

 style exserted; capsule 2 // -3 // in diameter. 



In dry woods, Nova Scotia to Minnesota, south to 

 Georgia and Ohio. Ascends to 3000 feet in North 

 Carolina. Also in Europe. Called also False, 

 Larger, or Pear-leaved Wintergreen, and Indian or 

 Canker Lettuce. June-July. 

 Pyrola rotundifolia pumila Hornem. Plantel, Ed. 3. i: 463. 1821. 



Scape 3' -6' high; leaves seldom i' long; calyx-lobes oblong, mostly obtuse. Greenland and 

 Labrador to the Northwest Territory. Perhaps a distinct species. 



2. Pyrola chlorantha Svv. Greenish- 

 flowered Wintergreen. (Fig. 2727.) 



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



Scape 4'- 1 2' high, 3-io-flowered. Blades or- 

 bicular, or broadly oval, mostly obtuse at both 

 ends, but sometimes narrowed at the base, coria- 

 ceous, dull, obscurely crenulate, or entire, #'-x' 

 long, shorter than or equalling their petioles; 

 flowers nodding, slightly odorous, greenish 

 white, 5 "-7" broad; pedicels 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 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 

 Colorado. Also in Europe. June-July. 



3. Pyrola elliptica Nutt. Shin-leaf. 

 (Fig. 2728.) 



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



Scape 5'-io' high, 7-is-flowered. 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, 1%'-$' 

 long, almost always longer'than their petioles; 

 flowers greenish white, nodding, 6"-8" broad, 

 very fragrant; pedicels longer than or equalling 

 their bracts; calyx-lobes ovate-triangular, 

 acute or acuminate, about one-fourth as long as 

 the obtuse petals; stamens and style declined- 

 ascending; anther-sacs scarcely beaked; style 

 somewhat exserted; capsule about 3" in di- 

 ameter. 



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

 ish Columbia, south to the District of Columbia, 

 Illinois, Michigan and in the Rocky Mountains to 

 New Mexico. June-Aug. 



