DECANDRIA MONOGYNIA. 365 



200. EPIG.EA. Ground-laurel. 



E. repens : branches, nerves of the leaves, and petioles, very hairy ; 



leaves cordate-ovate, very entire ; corolla subcylindrical. 

 HAB. Rocky woods. April, <2J. ; a trailing evergreen ; flower 



dust., reddish white. 



201. MONOTROPA. Bird's-nest. 



* Scapes many-flowered. HYPOPITHYS. 



M. lanuginosa : scape bearing the flowers in a spike ; bracts and flow- 

 ers woolly. 



HAB. Beech woods. Aug. ^5 scape scaly, aggreg., 4 6 inches 

 long ; flower secund, yellowish, parasitic on roots. 



M. Hypopithys ; scape bearing the flowers in a spike ; scales and flow- 

 ers smooth externally ; lateral flowers octandrous. 



HAB. Beech woods. July, 7J. ; plant dingy yellow. Parasitic. 



* * Scape l-flowered. 



M. uniflora ; scape straight, elongated, 1-flowered; flowers decand- 

 rous, erect or cernuous. 



HAB. Woods. June. Root roundish ; plant white ; scape 5 8 

 inches high ; flower lai ge. 



202. PYROLA. Winter-green. 



* Flowers racemed, pointing in various directions. 



P. rotundifolia : leaves rounded or dilated, oval, obsoletely serrulate, 

 subcoriaceous and shining; petiole about as long as the lamina; 

 scape many-flowered ; style declinate. 



HAB. Dry woods. July August, % ; leaves radical, semperv. ; 

 flower large, reddish white. 



P. elliptica : leaves membranaceous, elliptical-ovate ; serrulate, rather 

 acute , lamina longer than the petiole ; scape nearly naked ; bracts 

 subulate ; calyx 5-toothed ; style declinate. 



HAB. Dry woods. July August, Ij. ; scape 10 inches high, l- 



bract. ; flower sweet-scent., greenish white. 



P. asarifolia : leaves subreiiiform, generally emarginate, coriaceous ; 

 lamina shorter than the petiole ; scape mostly convolute, many-flow- 

 ered ; calyx appressed ; stamens slightly ascending ; style declinate, 

 clavate. 



HAB. Sandy woods. July, Tj. ; leaves small, dark green; scape 

 8 10 inches high ; bract solitary ; flower greenish, inodor. 



* * Flowers racemed, secund. 



P. secunda: leaves roundish- ovate, acute, serrate; racemes secund; 

 styles straight. 



