174 Class X. Order I. 



PYROLA SECUNDA. L. One sided Winter green. 



Flowers racemed, leaning one way. L. 



Less frequent than the former, but resembling it in habit. 

 Stem as in the last. Leaves petioled, spreading, ovate, acute, 

 (not obtuse like the last,) minutely serrate, smooth. The flow- 

 ers all tend to one side of the stem, whence the name. Stamens 

 equal and uniform ; style straight, permanent. Woods. June. 



PYROLA UNIFLORA. L. Onefloivered Pyrola. 



Leaves suborbiculate, serrate ; scape one flowered, 

 style straight. 



A small and very delicate plant. Leaves nearly orbicular, pe- 

 tioled, smooth, crenate. Scape round, short, invested at base 

 with a few roundish concave scales or bractes, supporting a sin- 

 gle large fragrant flower. Calyx segments oblong, obtuse. Pe- 

 tals obtuse, white. Style short, straight, stigma large, peltate, 

 five rayed. 



I have only met with this interesting species in a wood at 

 Keene, N. H. Mr. Oakes has sent it from Lynn. June. 



Subgenus CHIMAPHILA. Stamens spreading, style im- 

 bedded, stiginnpdtate. 



PYROLA UMBELLATA. L. Umbelled Winter green. 



Bigelow, Medical Botany, PI. xxi. 



Leaves wedge shaped and toothed, flowers some- 

 what umhelled, calyx five toothed, style immersed. 



Syn. CHIMAPHILA CORTMBOSA. Pursh. 



A very common and handsome species. Root woody, creep- 

 ing, sending up stems at various distances. The stems are as- 

 cending, somewhat angular, and marked with the scars of the 

 former leaves. The leaves grow in irregular whorls, of which 

 there are from one to four. They are evergreen, coriaceous, 

 on very short petioles, wedge shaped, subacute, serrate, smooth, 

 shining, the lower surface somewhat paler. The flowers grow 

 in a small corymb, on nodding peduncles, which are furnished 

 with linear bractes about their middle. Calyx of five roundish 

 aubacute teeth or segments, much shorter than the corolla. Pe- 



