ICOSANDRIA.— DI-PENTAGYNIA. 203 



HAB. Mountains ; rarely in bogs. Leav. narrower; 

 fruit black. 



2, A. Botryapium : unarmed; leaves cordate, oval, 



conspicuously acuminate, glabrous when mature ; 

 flowers in racemes ; petals linear-lanceolate. 

 HAB. Low woods. May. A small tree; young 

 leav. silky ; Jr. purp., eatable. 



3. A. ovalis : unarmed; leaves roundish-elliptical) 



acute, smooth ; flowers in racemes ; petals obo- 

 vate ; germens and segments of the calyx pu- 

 bescent. 

 HAB. Swamps. A small shrub ; her. black and eat- 

 able. 



324. PYRUS. Apple and Pear. Rosacea:. 



l v . P. coronaria: leaves broadly-oval, round at the 

 base, somewhat angular, serrate, smooth ; pedun- 

 cles racemose. 



HAB. Woods. May. A small tree ; fl. large, frag. : 

 fr. yell., depress., acid. 

 I. P. angustifolia : leaves lanceolate-oblong, acute at 

 the base, slightly crenate-dentate, shining ; pedun- 

 cles corymbose. 



IIAB. Pennsylvania. May. A small tree; leav. 

 andfr. smaller than No. 1. 



325. SPIRES A. Meadow-sweet. Rosacea;. 



* Frutescent. 



I. S. salicifolia : leaves lanceolate, acutely serrate, 

 smooth ; racemes terminal, compound, panicled . 

 flowers pentagynous. 

 HAB. Wet meadows. July. Stem 2—4 ft. high ; 

 leav. obluse or acute ; fl. uh. 

 i. S. tomentosa: leaves ovate-lanceolate, unequall} 

 serrate, toraentose beneath ; raceme* terminal, 

 compound, crowded ; flowers pentagynous. 

 HAD. Low grounds. July — Aug. Suffrut. 2 — 3 ft. 

 high ; racem. elong. ; fl. purp. 

 , S. hypcricifolia : leaves obovate, very entire, or 

 (lontatc at the summit, smooth ; umbels sessile. 

 HAB. Ory swamps. May. Shrub 3 ft. high ; I 

 nd : fl. num., wh. 



