Pyrus. ROSACE.E. 225 



long, pubescent when young, but smooth in the adult state. Flowers white, the corymbs very 

 compound, 4-10 inches in diameter. Styles usually 3. Fruit acid, bright red or scarlet 

 when mature. 



Mountain sides, and in swamps ; not found south of the Highlands. The largest trees of 

 this species that I have ever seen, are on the high mountains of Essex county. Fl. Latter 

 part of May - June. Fr. September. The handsome red fruit is persistent through the 

 winter. The Mountain Ash of this country, or American Service-tree as it is sometimes 

 called, is nearly allied to the S. aucuparia of Europe, and is by many botanists considered 

 as a variety of that species. 



18. AMELANCHIER. Medic; Lindl. in Linn, trans. 13. p. 100. JUNE-berry. 



[Amclatu.icr, according to Clusius, is the Savoy name for A. vulgaris. Loudon.] 



Calyx 5-cleft. Petals ovate-oblong or oblanceolate. Stamens short. Styles 5, more or less 

 united. Pome 3 - 5-celled ; each cell imperfectly divided by a false longitudinal dissepi- 

 ment, with a single seed in each division : endocarp cartilaginous. — Small trees or shrubs, 

 with simple serrated leaves and racemose white flowers. 



1. Amelanchier Canadensis, Tor7\ S)- Gr. Common Jtme-herry. Shad-Jbwer. 



Leaves ovate, elliptical or oblong, more or less cordate at the base, often acuminate, very 

 woolly when young, smooth when mature ; segments of the calyx triangular-lanceolate, about 

 the length of the tube ; fruit purplish. — Torr. <^ Gr. fl. N. Am. 1. p. 473. Mespilus Cana- 

 densis, hinn. sp. 1. p. 478 (excl. syn. Gron.); Michx. fl. 1. p. 291. Pyrus Botryapium, 

 Linn. f. suppl. p. 255. 



var. 1. Botryapium : arborescent ; leaves ovate-oblong, mostly somewhat cordate, acuminate 

 and cuspidate ; petals oblong, four times the length of the calyx. Torr. ^ Gr. I. c. Mespilus 

 Canadensis, var. cordata, Michx. I. c. M. arborea, Miclix.f. sylv. \.p. 336. t. 66. Pyrus 

 Botryapium, Willd. sp. 2. p. 1013 ; Pursh, fl. \.p. 339. Crataegus racemosa. Lam. diet. 1. 

 p. 74. Aronia Botryapium, Pers. syn. 2. p. 39 ; Ell. sk. 1. p. 357. Amelanchier Botry- 

 apium, DC.prodr. 2. p. G32 ; Beck, hot. p. 112 ; Darlingt.fl. Cest. p. 294. A. Botryapium 

 and ovalis. Hook. fl. Bor.-Am. 1. p 202. 



var. 2. ohlongifolia : shrubby ; leaves oval-oblong, mucronate, the tomentnm of the lower 

 surface often remaining during the flowering ; racemes shorter ; petals obovate-oblong, about 

 thrice the length of the calyx. Torr. <^ Gr. I. c. A. ovalis. Hook. I. c. Mespilus ovahs, 

 var. obovalis, Michx. I. c? Aronia Botryapium, Torr. fl. 1. p. 479. 



var. 3. rotundifolia : shrubby or arborescent ; leaves roundish-oval, often somewhat acumi- 

 nate or cuspidate ; racemes 6 - 10-flowered ; petals narrowly oblong, rather small. Torr. 

 4" Gr. I. c. A. ovalis, DC. I. c; Darlingt. I. c.l Mespilus Canadensis, var. rotundifolia, 

 Michx. I. c. Pyrus ovalis, Willd. I. c. P. sanguinea, Pursh, 1. c. Aronia ovahs, Pers. I. c. 

 [Flora.] 29 



