WINTERGREEN FAMILY 459 
Leaf-blades not leathery, generally longer than the leaf-  . 
stalk Sie, Nene ua ine: «7 be ellphca 
Style straight, stamens not leaning to one side. 
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Flowers Pink or Purple 
Leaves more or less heart-shaped at base . . . . . . . . ~~ OP. asarifolia 
Heavesnotsheartshaped™ at) basen), <))e)cs nye ie: ls pie ter tee re eegInosa 
1. P. oxypetala, Austin. SHARP-PETALED WINTERGREEN. Leaves 
leathery, dull, egg-shaped, on leaf-stalks longer than the blades. Flowers 
greenish, about 9 on a slender flower-stalk which is about 8 in. high. 
Petals lance-shaped with sharply tapering points. Rare. Found in Dela- 
ware Co., N. Y., by C. F. Austin. June. 
2. P. rotundifolia, L. (Fig. 1, pl. 113.) Rounp-LEAVED WINTER- 
GREEN. (P. americana, Sweet.) Leaves shining, nearly round or round 
egg-shaped; leaf-stalk dilated above. Flower scape 4 to 14 ft. high with 
about a dozen nodding white flowers. Style with a double curve; stamens 
leaning to one side. Common in woods. June-July. 
3. P. chlorantha, Swartz. (Fig. 4, pl. 113.) GREEN-FLOWERED Py- 
ROLA. Leaves round or broadly oval, leathery, dull green, on leaf-stalks 
longer than the blades. Flowers greenish, nodding. Calyx segments short 
and obtuse. Leaves much smaller than those of No. 2 or No. 4. Woods. 
June-July. 
4. P. elliptica, Nutt. (Fig. 2, pl. 113.) PEAR-LEAVED PyRoLa. SHIN- 
LEAF. Leaf blades dark green, broadly oval, thin, not leathery, about 4 
as wide as long. Flower scape 5 to 10 in. high, with about a dozen nod- 
ding white flowers. Calyx lobe triangular, style with a double curve, 
stamens leaning to one side. Rich woods. June-Aug. 
5. P. minor, L. (Fig. 7, pl. 113.) SmatierR Pyrora. Lesser WIN- 
TERGREEN. Leaves rounded on leaf-stalks as long as the blades and di- 
lated toward the blade. Flowers nodding, white; style straight and sta- 
mens not leaning to one side. On high hills and mountains, northern New 
England. June-Aug. 
6. P. secunda, L. (Fig. 5, pl. 113.) ONr-sipeD PyroLa. Leaves 
elliptic, thin, on leaf-stalks generally shorter than leaves. Flower scape 
4 to 10 in. high, with the nodding white flowers all on one side of the 
scape. Style straight, stamens not leaning to one side. Woods and 
thickets, common. 
7. P. asarifolia, Michx. Liver-Leavep Pyrota. Leaves round or 
kidney-shaped, the base heart-shaped, leathery, shorter than the leaf- 
stalk. Flowers nodding, purple with curved style and leaning stamens. 
Wet woods. Mass., northern New York and northward. June-July. 
8. P. uliginosa, Torr. Boo Pyrorta. Resembles P. rotundifolia, but 
flowers are purple. A swamp plant, central New York, New England and 
northward. June. 
2. MONESES, Salisb. 
A low, smooth herb, with leaves at the base of the stem, which are 
nearly round with fine serrations at the borders. Stem leaning at base. 
From the cluster of leaves a flower stem arises bearing a solitary white 
