POMACE^E. 113 



and segments of the calyx pubescent ; fruit black. Aroniaovalis Pers. 



Pyrus ovalis Linn. Pursh. Mespilus canadensig var. obovalis Mick. 



HAB. In swamps. Can. to Car. N. to lat. 62. May. ^.A 



small shrub. Supposed by some botanists to be a mere variety 



of the former, but certainly distinct. The fruit is about the 



size of a pea and eatable. 



3. A. ? sanguined De Cand. . leaves oval, obtuse at each end, mucro- 

 nate, with very slender serratures, subcordate at base ; racemes few- 

 flowered ; calyx smooth ; petals linear-obtuse. Pyrus sanguinea Pursh. 

 Aronia sanguinea Nutt. 



HAB. Can. and Mass. W. to Columbia river. Pursh. May. *>. 

 A small tree with blood red branches. Berries red, eatable. 

 Pursh. 



3. PYRUS. Linn, De Cand. 



Calyx with the tube urceolate, and the limb 5-lobed. Petals 

 roundish. Styles often 5, rarely 23. tipple closed, 5-cell- 

 ed, with a cartilaginous putamen. Cells 2-seeded. Seeds 

 with a cartilaginous covering. Icosandria. Di-Pentagynia. 



* Petals spreading, flat. Styles 5, nearly united at base. Leaves simple, 

 without glands. MALUS. 



1. P. coronaria Linn. : leaves broadly-oval, round at the base, some- 

 what angular, serrate, smooth ; corymbs terminal, few-flowered, on 

 long peduncles ; flowers large ; fruit depressed, Malus coronaria 

 Mich. 



HAB. In woods. N. J. to Geor, May. T?. A tree 15 20 

 feet high. Flowers large, fragrant, pale rose-colour. 



2. P. angusti/olia Ait. : leaves lanceolate-oblong, acute at base, 

 slightly crenate-dentate, shining ; peduncles corymbose. Malus an* 

 gustifolia Mich. 



HAB. Penn. May. T?. Muhl. A tree 15 20 feet high. Leaves 

 &ndfruit smaller than in the preceding. 



** Styles 2 5. Leaves pinnate. SORBUS. 



3. P. americana De Cand. : leaves pinnate ; leafets oblong-lanceo- 

 late, acuminate, somewhat equally serrate, and with the common peti- 

 ole very smooth ; flowers in terminal corymbs. Sorbus americana 

 Pursh. 



HAB. Mountains. Can and N. S. May. 1?. A shrub or small 

 tree with the younger branches pubescent. Floicers white. Sta- 

 mens very numerous. Styles mostly 3. Fruit globose, fulvous, 

 remaining on the tree all winter. Mountain Ash. 



4. P. microcarpa De Cand. : leaves pinnate ; leafets acuminate, 

 acutely and incisely serrate, and with the common petiole smooth j 

 serratures setaceously mucronate. Sorbus microcarpa Pursh. 



HAB. High mountains. N. J. to Car. Pursh. May. 1>. A large 

 shrub, with the younger branches glossy. Flowers white. Fruit 

 small, scarlet. 



10* 



