OKtER 47. ROSACES. 333 



long. Fls. very large, rose-colored, in loose corymbs of 5 to 10. Fr. as large 

 (1 to !' diam.) as a small apple, yellowish, hard and sour but esteemed for pre- 

 serves. May. J 

 /?. IOENSIS. Lvs. (when young), pedicels and calyx densely tomentous. Lva. 



ovate aud oblong, distinctly lobed ; (fr. not seen). Sent from Iowa by Dr. 



Cousens. 



4 P. angustifolia Ait. Lvs. lanceolate, acute, or obtuse at base, glabrous, scarcely 

 veiny, eremite-serrate or almost entire, on short petioles ; corymbs racemous, few 

 (4 to 7)-flov,-crcd ; pedicels and calyx outside glabrous; sep. ovate, villons within; 

 sty. distinct, villous at base. Penn. to Ga. and La. Tree 20 to 30f high (in 

 woods near Ogeechee causeway). Lvs. about 4 times longer than wide. Fls. 

 similar to No. 3, rose-purple, large, fine and fragrant. Mar. T. & G. describe a 

 variety with the styles glabrous. 



5 P. arbutifolia L. f. CHOKE BERRY. Lvs. oblong-obovate or oval-lanceolate, 

 obtuse or acute, eremite serrulate, smooth above, tomentous beneath when young, 

 attenuate at base into a short petiole ; ped. and cal., when young, tomentous; fr- 

 pyriform or subglobous, dark red. Low, moist woodlands, U. S. and Can. A 

 shrub 5 to Sf high. Lvs. 1 to 2' long, -J as wide, often subacuminate, subcoria- 

 ceous, serratures small, \vith a glandular, incurved point; petioles 2 to 4" long. 

 Fls. white, in compound, terminal corymbs of 12 or more. Fr. astringent, as 

 large as a currant. May, Jn. f 



ji. MELANOCAKPA Hook. Lvs., cal. and ped. glabrous or nearly so ; fr. blackish- 

 purple. Swamps. Height 2 to 4f (P. melanocarpa Willd.) 



6 P. Americana DC. MOUNTAIN ASII. Lfts. oblong-lanceolate, acuminate, 

 mucronately serrate, smooth, subsessile; cymes compound, with numerous fls. ; 

 pome small, globous; sty. 3 to 5. A small tree in mountain woods, N. Eng. and 

 Mid. States. Trunk 15 to 20f high, covered with a reddish brown bark. Lvs. 8 

 to 12' long, composed of 9 to 15 leaflets; Ifts. 2 to 3J' by to 1', subopposite, 

 often acute, on petioles 1" in length. Fls. small, white, in terminal cymes of 60 

 to 100 or more. Fr. scarlet, 2 to 3" diam., beautiful. May. f 



8. MicnocARPA T. & G. Fr. smaller. (P. microcarpa DC.) 

 7 P. Aucuparia L. ENGLISH MOUNTAIN ASH. Lfts. as in P. Americana, 

 except that they are always smooth on both sides, and, with the serratures, less 

 acute at apex; fls. corymbous; fr. globous. Native of Europe. A tree 20 to 

 40f high, often cultivated as well as the last species, for its ornamental clusters 

 of scarlet berries. It is a tree of larger size and rougher bark than the last, but 

 is hardly to be distinguished by the foliage, flowers or fruit, f 



14. CYDO'NIA, Tourn. QUINCE. (Named from Cydonia, a town in 

 Crete, from whence it was brought.) Calyx urceolate, limb 5-cleft; 

 petals 5 ; styles 5; pome 5-carpeled, carpels cartilaginous, many -seeded, 

 seeds covered with mucilaginous pulp. Trees and shrubs. Lvs. sim- 

 ple. Fls. mostly solitary. 



1 C. viilgiris Pers. Lvs. oblong-ovate, obtuse at base, acute at apex, very 

 entire, smooth above, tomentous beneath; ped. solitary, and, with the cal. woolly; 

 pome tomentous, obovoid. Shrub 8 to 12f (rarely 20f) high, with crooked, strag- 

 gling branches. Lvs. about as large as those of the pear tree. Fls. wliite, with 

 a tinge of purple, large, terminal. Fr. large, lengthened at base, clothed with a 

 soft down, yellow when ripe, highly esteemed for jellies and preserves. The 

 plant is reared from layers. \ Eur. 



2 C. Japonica Pers. JAPAN QUINCE. Lvs. glabrous, shining, coriaceous, 

 ovate-lanceolato, acute at each end, serrulate; stip. reniform ; spine short, straight; 

 fls. axillary, subsessile. From Japan. A low shrub, beautiful or even brilliant 

 when in blcom. Fls. about as large as in No. 1, varying in color from the richest 

 scarlet to a delicate blush or white. It is hardy and easily reared. Apr. (Pyrus 

 Japonica L.) 



15. RO X SA, Tourn. ROSE. (Celtic rhos, red; Gr. podov; Lat, rosa ; 

 Eng. rose.) Calyx tube urceolatc, fleshy, contracted at the orifice, limb 

 &-cleft, the segments somewhat imbricated in aestivation, and mostty 



