302 ERiCACE^. (heath family.) 



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

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

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

 Scape 6' - 12' high, many-bracted : flowers |' broad. — Exhibitsmany varieties, 

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

 lanceolate. — Var. asarif6lia, with oblate or round-reniform leaves, and trian- 

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

 petals. (P. asarifolia, Michx.) Common northward. — Var. ui,ioin6sa, with 

 roundish-oval or somewhat kidney-shaped smaller leaves (l'-l|^' 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. Sf Gr.) 

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



2. P. elliptica, Nutt. (Shin-leaf.) Leaves thin and dull, elliptical 'or 

 ohovatt-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. — Eich woods, New England to Pennsylvania, 

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

 large as in the preceding. 



3. P. chlor^ntha, Swartz. Leaves small (1' long), roundish, thick, dull, 

 shorter than the petioU ; scape few-fowered, 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 (S" -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 ; antliers conspicimusly mucronute 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. seciillda, 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. ptimila (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. mllior, L. Leaves roundish, slightly orenulate, thiekiah, 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. Footi ), 



