1 10 PENTANDRIA.— MONOGYNIA. 



161. DIAPENSIA. Convolvuli. 



J. D. lapponica : cespitose ; leaves spathulate, smooth 



flowers pedunculate ; anthers simple. 

 HAB. High mountains. June. U . Evergreen . 



leav. much crowded, a little recurv.;Jl. term., white. 

 2. D. barbulata : creeping; leaves cuneate-lanceolate, 



pubescent at the base ; flowers sessile ; anthers 



beaked at the base. 

 HAB. Pine barrens and high mountains. May — 



June. Evergreen, forming mats ; fl. solit., term.. 



white. 



162. DATURA. Thorn-apple. Solanem. 



D. Stramonium : capsule spiny, erect ; leaves ovate, 



smooth, angular-dentate. 

 HAB. Waste-places. July — Sept. 0. Stem 2 — 7 



ft. high, dichot., green ; fl. solitary, axill., white. 

 3. Tatula : stem and flowers purple. 



163. AZALEA. Rhododendra. 



A. procumbens. 



HAB. High mountains. July. Tj • Evergreen, ces- 

 pitose, 3 — 4 in. long; leav. oppos., ellipt. ; fl. in 

 small term, umb., rose-col. 



164. PHYSALIS. Ground-cherry. Solanea. 



1. P. obscura : pubescent ; stems prostrate, divaricate ; 



leaves broad-cordate, subsolitary, unequally and 

 coarsely toothed ; flowers solitary, nodding ; calyx 

 very hairy. 

 HAB. Woods and hills. Aug. © . Stem forked . 

 leav. on long petioles ; fl. pedunc, dull yell. 



2. P. vicosa : leaves by pairs, subcordate-oval, repanw. 



obtuse, subtomentose ; stem herbaceous, panicu- 

 late above ; fruit bearing calyx pubescent. 



HAB. Road sides, &c. ©. Stem erect, 2—3 ft. 

 high, dichot.; fl. yell., spotted at the base. 

 }. P. pennsylvanica : leaves ovate, subrepand, obtuse. 

 nearly naked ; stem herbaceous, branched ; pedun 

 cles solitary, a little longer than the petioles. 



HAB. Road sides and rubbish. July — Sept. U . 

 Erect or procumb., 1 ft. high ; fl. yell., not spotted 



