302 ERICACEAE. (HEATH FAMILY.) 



lanceolate, acutish, with somewhat spreading tips, one half or one third the length 

 of the roundish-obovate rather spreading (chiefly white) petals; anther-cells nearly 

 blunt. Damp or sandy woods : common, especially northward. June, July. 

 Scape 6' - 12' high, many-bracted : flowers f ' broad. Exhibits many varieties, 

 such as : Var. INCARNATA, with flesh-colored flowers ; calyx-lobes triangular- 

 lanceolate. Var. ASARirdLiA, with oblate or round-reniform leaves, and trian- 

 gular-ovate calyx-lobes of about half the length of the white or flesh-colored 

 petals. (P. asarifolia, Michx.\ Common northward. Var. ULIGIN6SA, with 

 roundish-oval or somewhat kidney-shaped smaller leaves (!'-!' wide), and 

 ovate acute calyx-lobes, about one quarter of the length of the reddish or pur- 

 ple petals; flowers rather smaller, few or several. (P. uliginosa, Torr. $ Gr.) 

 Cold bogs, N. New England to Wisconsin, and northward. (Eu.) 



2. P. elliptica, Nutt. (SHIN-LEAF.) Leaves thin and dull, elliptical or 

 obovate-oval, usually longer than the margined petiole ; raceme many-flowered ; calyx- 

 lobes ovate, acute, not one fourth the length of the obovate rather spreading (greenish- 

 white) petals; anther-cells blunt. Rich woods, New England to Pennsylvania, 

 Wisconsin, and northward : common. June. Scape and flowers nearly as 

 large as in the preceding. 



3. P. chlorantha, Swartz. Leaves small (!' long), roundish, thick, dull, 

 shorter than the petiole; scape few-flowered, naked (5' - 8' high) ; calyx-lobes roundish- 

 ovate, very short; the elliptical petals converging (greenish-white); anther-cells 

 contracted below the orifice into a distinct neck or horn ; style little exserted. Open 

 woods, New England to Penn., Wisconsin, and northward. June, July. 



4. P. oxyp6tala, C. F. Austin, n. sp. Leaves ovate, small (8" -12" long), 

 shorter than the slender petiole; scape (7' -8' high) several-flowered; flowers 

 on ascending pedicels, not nodding; calyx-lobes triangular-ovate, acute, short; 

 petals lanceolate-oblong, acuminate, greenish ; anthers conspicuously mucronate at the 

 apex, obtusely 2-horned (as in No. 3) at the base, not inverted ; style straightish, 

 scarcely exserted. Wooded hill near Deposit, Delaware Co., New York, June 

 1, 1860, C. F. Austin. Stigma as in No. 3; the calyx-lobes, &c., different, so 

 that it can hardly be a monstrosity of that species. 



2. Stamens regular : style straight, much narrower than the expanded depressed 

 5-rayed stigma : petals erect and connivent. 



5. P. sectmda, L. Subcaulescent ; leaves ovate, thin, longer than the peti- 

 ole, scattered, finely serrate ; racemes dense and spike-like, the numerous small 

 (greenish-white) flowers all turned to one side, scarcely nodding ; calyx-lobes ovate, 

 very much shorter than the oblong oval petals ; style long, exserted. Rich woods : 

 common eastward and northward. July. Scape 3' -6' high. (Eu.) 



Var. piimila (Paine, Cat. PI. Oneida Co.) is a remarkable form, growing 

 in high peat-bogs from Otsego Co., New York, Lake Superior, and northward 

 (indicated by Chamisso in Russian America) ; leaves orbicular or broadly oval, 

 very thin (5"- 12 ' long) ; scape 2' -4' high, 3 - 8-flowered. July, Aug. 



6. P. minor, L. Leaves roundish, slightly crenulate, thickish, mostly longer 

 than the margined petiole; raceme spiked ; calyx-lobes triangular-ovate, very 

 much shorter than the nearly globose corolla, ; style short and included. Woods 

 at the base of the White Mountains, New Hampshire, Lake Superior (L. Foote), 



