DECANDRIA.— MONOGYNIA. 185 



287. PTEROSPORA. Monotropev. 



P. andromedea. 



HAB. Steril hill-sides. July— Aug. M.1 Steml*— 

 2 ft. high, simple, scaly, brownish; leaves ;fl. in a 

 long raceme, nutant, reddish white. 



288. MONOTROPA. Bird's-nest Monotropecc. 

 * Scapes many-flowered. Hypopithys. 



1 . M. lanuginosa : scape bearing the flowers in a spike ; 



bracts and flowers woolly. 

 HAB. Beech woods. Aug. U . ? Scape scaly, ag- 

 greg.f 4 — G in. long ; fl. secund, yellowish, parasitic 

 on roots. 



2. Uypopithys: scape bearing the flowers in a spike ; 



scales and flowers smooth externally ; lateral flow- 

 ers octandrous. 

 HAB. Beech woods. July. 2{. ? Plant dingy yel- 

 low. Parasitic. +. 



** Scape \-flowered. 



■ >. M. uniflora: scape straight, elongated, 1 -flowered; 

 flowers decandrous, erect or cernuous. 

 HAB. Woods. June. Root roundish ; plant white ; 

 scape 5 — 8 in. high ; fl. large. 



JGP. PYROLA. Winter-green. Monotropecc. 



* Flowers racemed, pointing in various directions. 



1 . P. rotiindifolia : leaves rounded or dilated oval, ob- 

 soletely serrulate, subcoriaceous and shining ; pe- 

 tiole about as long as the lamina ; scape many-flow- 

 ered ; style declinate. 

 HAB. Dry woods. July — Aug. U^ Leav. rad. 

 semjicrv. : fl. large, reddish white. 

 .*. P. elliptica: leaves membranaceous, elliptical-ovate ; 

 errulate, rather acute ; lamina longer than the pe- 

 tiole ; scape nearly naked ; bracts subulate ; calyx 

 o-toothed ; style declinate. 

 MAB. Dry woods. July — Aug. V-. Scape 10 in. 

 U^ract. : fl. sw. -scent., gr. wh. 

 C*2 



