292 



MALACEAE. 



Vol. II. 



I. Amelanchier canadensis (L.) Medic. June-berry. Service-berry. May- or 



Sand-cherry. Fig. 2329. 



1753- 



1781. 

 18-15. 



1793- 



Mcspiliis canadensis L. Sp. PI. 478. 

 Pyrus Botryapium L. i. Suppl. 255. 

 A. Botryapium DC. Prodr. 2 : 632. 

 A, canadensis Medic. Geschichte 79. 



A tree sometimes reaching the height of 60°, 

 with trunk diameter of 2°, but usually lower, sel- 

 dom over 25° high. Leaves ovate or oval, acute 

 or acuminate at the apex, rounded or cordate at 

 the base, sharply and finely serrate, sometimes 

 sparingly pubescent when young, soon entirely gla- 

 brous, or the under surface sometimes persistently 

 pubescent, i'-3' long, or larger on young shoots; 

 racemes spreading or drooping, pedicels long, 

 slender; bracts silky, purplish, deciduous; petals 

 linear, linear-spatulate, or linear-oblong, 6"-9" 

 long, 3-4 times the length of the nearly or quite 

 glabrous calyx ; pome globose, red or purple, sweet. 



In dry woodlands, Nova Scotia to western Ontario, 

 Arkansas, Florida and Louisiana. Wood very hard, 

 brown ; weight per cubic foot 49 lbs. Service-tree. 

 May-, juice-, or wild Indian-pear. Indian-cherry. Sugar- 

 pear, -plum, or -berry. Shad-bush. Boxwood. Bill-berry. 

 June-plum. March-May. Fruit ripe June-July. 



Amelanchier laevis Wiegand, of similar range, ex- 

 tending north to Newfoundland, with leaves glabrous or nearly so from the first, may be distinct. 



2. Amelanchier intermedia Spach. 

 Shad-bush. Swamp Sugar- 

 Pear. Fig. 2330. 



A. intermedia Spach, Hist. Veg. 2: 85. 1834. 

 Amelanchier canadensis var. oblongifolia T. & G. 

 Fl. N. A. I : 473. 1840. 



A shr'ub or small tree, sometimes 30° high, 

 the foliage and inflorescence densely white- 

 woolly when young, often nearly or quite gla- 

 brous when old. Leaves oval, oblong, ellip- 

 tic or obovate, acute or obtuse, rounded, or 

 sometimes narrowed or subcordate at the base, 

 finely and sharply serrate nearly all around ; 

 racemes short, rather dense; pedicels short, 

 seldom over i' long; petals spatulate or linear- 

 spatulate, 5"-7" long, 2-3 times as long as the 

 calyx-lobes ; calyx usually densely white- 

 woolly ; pome globose, 3"-4" in diameter. 



In swamps and moist soil. New England to On- 

 tario, Florida and Louisiana. Wild pear. Cur- 

 rant-tree. Flowering dogwood. May-bush. April- 

 Mayi Consists of many races. 



A. nantucketensis Brcknell differs in having 

 shorter petals and thicker leaves, and ranges from 

 Massachusetts to New Jersey. 



3. Amelanchier spicata (Lam.) C. Koch. 

 Low June-berry. Fig. 2331. 



Crataegus spicata Lam. Encycl. i : 84. 1783. 

 Amelanchier spicata C. Koch, Dendr. i : 182. 1869. 

 A. stolonifera Wiegand, Rhodora 14: 144. 1912. 

 lA. humilis Wiegand, loc. cit. 141. 1912. 



Stems i°-3° high from a long root creeping 

 among rocks. Leaves elliptic or oval, 9"-i4' long, 

 rounded at both ends, or sometimes subacute at 

 the apex, sometimes subcordate at the base, ser- 

 rulate or dentate-serrate nearly all around or 

 sometimes entire below the middle, dark green 

 and quite glabrous when mature, woolly when 

 young; racemes numerous, 4-10-flowered ; pedi- 

 cels slender, 4'-i' long in fruit; petals 2"-4" long ; 

 calyx-lobes nearly triangular ; top of the ovary 

 woolly ; pome globose, about 3" in diameter. 



In dry rocky places, Ontario to Michigan, Iowa, 

 Pennsylvania and North Carolina. May-June. 



