324 ERiCACE^. (heath family.) 



nearly globose corolla • sfi/Ie short and inc/nded. — Cold woods, Lab., White 

 Mts., L Superior, and northward. 



2 P. seciinda, L. Subcaulesceut, 3 - 6' high ; leaves ovate, thin, longer 

 than the petiole, scattered, finely serrate ; racemes dense and spike-like, the 

 numerous small (greenish-white) flowers all tamed to one side, scarcely nod- 

 ding; calyx-lobes ovate, very much shorter than the oblong-oval petals; sti/le 

 lonfj, exserted, — Rich woods. Lab. to Minn., south to Md., and far northward. 

 July (Eu.) 



V'ar pumila, Crray, is a smaller form, with rounded leaves 6" or little 

 more in diameter, and 3-8-flowered scape. — High peat-bogs, N. Y. to L. Su- 

 perior, and northward. July, Aug. 



* * Stijle stromjlij declined, the apex curved upward, longer than the connivent 

 or spreading petals ; stigma much narrower than the truncate excavated 

 ring-like apex of the sfj/le ; anthers contracted below the openings, forming 

 a short neck ; leaves denticulate or entire. 



•*- Petals and leaves acute, the latter ovate, coriaceous. 



3. P. OXypetala, C. F. Austin. 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 mucro- 

 nate at the apex, obtusely 2-horned at base, not inverted ; style straightish, 

 scarcely exserted. — Wooded hill near Deposit, Delaware Co., N. Y. (C. F. 

 Austin, in 1860). Not since found; probably monstrous. 



•t- •*- Petals and leaves orbicular to oblong, veri/ obtuse. 



4. p. chlorantha, Swartz. Leaves small (1' long), roundish, thick, dull, 

 shorter than the petiole; scape few flowered, naked (.5-8' high); cali/x-lobes 

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

 anther-cells contracted into a distinct neck : style little exserted. — Open woods, 

 Lab. to Penn., Minn., north and westward. June, July. 



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

 obovate-oval , longer thajn. the margined petiole ; raceme many-flowered ; cahjx~ 

 ,'ohes ovate, acute, not one fourth the length of the obovate rather spreading 

 (greenish-white) petals: anther-cells blunt. — Rich woods, N. Eng. to Md., 

 Iowa, Minn., and northward. June. 



6. P. rotundifolia, L. Leaves orbicular, thick, shining, usually shorter 

 tlian the petiole ; scape many-bracted (6- 12' high) , raceme elongated, many- 

 flowered ; calyx-lobes lanceolate or oblong -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, throughout the continent, south to N. Ga. Exhibits many varieties, 

 sucli as : Var. ixcarnXta, DC, with flesh-colored to rose-purple floAvers, and 

 triangular-lanceolate calyx-lobes. Cold woods and bogs, N. Eng. to Minn., 

 and northward. — Var. asarif6lia. Hook., with oblate or round-reniforra 

 leaves, and shorter ovate calyx-lobes ; petals flesh- or rose-colored (rarely 

 white) AVith same range. — Yar. uligin6sa, Gray, witli short broadly 

 ovate calvx-lobes, subcordate to obovate dull leaves, and rose-colored or pur 

 |)le flowers Same range. (Eu.) 



