Class X. Order I. 173 



A tall, elegant, white flowering shrub. Leaves about three 

 inches long, and from one to two broad, inversely ovate, serrate, 

 downy underneath in one variety, glabrous in another. Flowers 

 in long racemes or loose spikes with downy stalks. Bractes line- 

 ar-subulate. Calyx greenish white ; petals roundish oblong; 

 stigma triiid. Grows in low soils, Cambridgcport. July, August. 



178. PYROLA. 



Sulgenus . Stamens ascending, style declined, 



stigma annular. 



PYROLA ROTUNDIFOLIA. L. Round leaved Winter green. 



Leaves prolate-orbicular, flowers racemed, catyx re- 

 flexed, style declined. 



A very common species. Root creeping, putting up erect or 

 ascending, angular stems. Leaves spreading near the ground, 

 petioled, roundish ovate and obovate, subacute, scarcely serrate, 

 much larger than in the following species. Scape angular, with 

 one or more sheathing scales. Flowers in a large terminal ra- 

 ceme with nodding pedicels, white, fragant. Calyx segments 

 ovate with the points rellexed. Stamens tending to the upper 

 side, and styles to the lower ; stigma truncately-conical surround- 

 ed with a ring at base, persistent. Common in Woods. June. 



PYROLA ASARIFOLIA. MX. Broad leaved Winter green. 



Leaves oblate-orbicular, flowers racemed, calyx ap- 

 pressed, style declined. 



Syn. PTROLA CHLORANTHA. Nuttall ? 



This species is in flower two or three weeks earlier than the 

 last, and has leaves which are broader in proportion to their 

 length, but scarcely half as large. Primary leaves reniform. 

 sometimes obcordate, sometimes orbicular, obtuse, dark green 

 and coriaceous. Scape more slender and fewer flowered than 

 in the last. Flowers greenish with the segments of the calyx 

 short and appressed. Stamens, style, and stigma much as in the 

 last. Dry woods, less common than the last. June. 



Subgenus . Stamens spreading, style straight. 



jtigma peltate. 



