260 EEicACEjc. (HEATH FAMILY.) 



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

 sboiate-oiul, usually longer than the margined petiole ; raceme many-flowered ; calyx- 

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

 ish-white) petals; anther-cells scarcely pointed at the apex. Rich woods, 

 New England to Pennsylvania, Wisconsin, and northward ; common. June. 

 Scape and flowers nearly as large as in No. 1. 



3. P. chlorautlia, Swartz. (SMALL PYROLA.) Leaves small (V 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 pointed; style strongly deflexed, scarcely exsertcd. (P. 

 asarifolia, Bigel., frc.) Open woods, New England to Pennsylvania, and north- 

 ward. June. (Eu.) 



# # Stamens and style straight : stigmas thick, united with the expanded ring: . e. 

 stigma peltate, 5-rayed. 



4. P. sccuiida, L. (ONE-SIDED PYROLA.) Leaves ovate, thin, longer 

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

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

 very much shorter than the oblong and erect petals ; style long and exserted. 

 Rich woods ; common eastward and northward. July, Aug. Scape 3' - 6' 

 high. (Eu.) 



5. P. minor, L. (LESSER PYROLA.) Leaves roundish, slightly crenu- 

 late, 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 Hamp- 

 shire. July, Aug. Scape 5' -10' high. Flowers small, crowded, white or 

 rose-color. (Eu.) 



23. M ONUSES, Salisb. ONE-FLOWERED PYROLA. 



Petals 5, widely spreading, orbicular. Stamens 10 : filaments awl-shaped, 

 naked : anthers as in Pyrola, but conspicuously 2-horned at the apex, 2-celled. 

 Style straight, exserted : the 5 stigmas long and radiating. Valves of the pod 

 naked. Otherwise as in Pyrola. A small perennial, with the rounded and 

 veiny serrate thin leaves clustered at the ascending apex of creeping subterra- 

 nean shoots ; the 1 - 2-bracted scape bearing a single terminal flower. Parts of 

 the flower sometimes in fours. (Name /twos, single, and rjo~t,s, desire, probably 

 in allusion to the handsome solitary flower.) 



1. IH. U ill flora. (Pyrola uniflora, L.} Deep cold woods, Pennsyl- 

 vania to Maine, Lake Superior, and northward. June. Plant 2' -4' high, 

 smooth ; the corolla ' broad, white or slightly rose-color. (Eu.) 



24. C HIM A PHIL, A, Pursh. PIPSISSEWA. 



Petals 5, concave, orbicular, widely spreading. Stamens 10 : filaments en 

 larged and hairy in the middle : anthers as in Pyrola, but nearly 2-celled, some- 

 what 2-horned at the apex. Style very short, inversely conical, nearly immersed 

 in the depressed summit of the globular ovary : stigma broad and orbicular, 



