302 ERiCACii.E. (heath family.) 



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

 of the roundisli-oljovatc rather sprcailiiig (eiiieliy white) petids; anthercdk nearly 

 blunt. — Damp or sandy wouds : eomnion, e^peeialiy nortliward. June, July. — 

 Seape C- 12' liigh, many-braeted : flowers i' broad. — Exhibits many varieties, 

 sueh as: Var. ixcaknXta, with flesh-colored flowers; calyx-lobes triangular- 

 lanceolate. — Var. asahif6lia, 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. uliginOsa, with 

 roundish-oval or somewhat kidney-shaped smaller leaves (I'-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, Twr. <$* Gr.) 

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



2. P. elliptiea, Nutt. (Shin-leaf.) Leares thin and dull, elli/itical or 

 ohuvatf-ovul, usuallij lunijer titan the margined petiole ; raceme many-flowered ; calj/x- 

 lohes ovate, acute, not one fourth thelengih of the obovate rather spreading (greenish- 

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

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

 large as in the preceding. 



3. P. chlorantha, Swartz. I.caves small (1' long), roundish, thick, dull, 

 shoi-ter than the peliule; scape few-Jtowyed, naked (5' - 8' high) ; caiyx-loltes roundish- 

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

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

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



4. P. oxypetala, C. F. Austin, n. sp. Leaves ovate, small {S" -12" \ong), 

 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-ohlong , acuminate, greeni>h ; 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., diflerent, 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 conniveut. 



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

 ole, .scattered, y!'«e/^ ser/a^e; racemes dense and spike-like, the numerous Small 

 (green ish-\vhite) fowers all turned to one side, scarcely nodding ; calyx-lobes ovate, 

 very much shorter than the oblong oval petals ; style long^ exserted. — Uich woods: 

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



Var. pvinila (Paine, Cat. PI. Oneida Co.) is a renuukable 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. Zeui;esro«Hc/<s/(,slightlycrenulate,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 Mouutaius, New Hampshire, Lake Superior (L. Footi ), 



