AMELANCHIER 151 



Key to the Species. 



1. Petals narrowly oblong, 14-25 mm. in length; 



leaves finely and sharply serrate A. canadensis 



2. Petals oblong to obovate, 4-12 mm. in length 



a. Flowers in racemes, 5 -many flowered; leaves 



obtuse or cordate at base 



( 1 ) Leaves oblong, finely serrate ; blossom- 



ing April 10-May 15, fruits June-July A. oblongifolia 



(2) Leaves oval or sub-orbicular, coarsely 



dentate; blossoming May 15-25, fruit 



ripe Aug.-Sept. A. spicata 



b. Flowers 1-4 in terminal clusters; leaves acute 



or somewhat wedge-shaped at base A. oligocarpa 



Amelanchier canadensis (L.) M e d i c u s 1793 Shadbush June- 

 berry Service-berry 



A tall shrub or sometimes a small tree 3-12 meters (10-40 ft.) high; 

 bark smooth or nearly so ; buds 6-8 mm. long, scales chestnut-brown, 

 imbricated, slightly pubescent; leaves ovate or oval, acute or acuminate 

 at the apex, somewhat cordate at the base, finely and sharply serrate, when 

 young folded lengthwise and brownish purple, somewhat pubescent at 

 first but soon glabrate, bracts and stipules long-silky hairy, flowers in 

 drooping racemes, white, large, petals narrowly oblong, 14-25 mm. long, 

 3-4 times as long as the calyx; fruit a globose pome, red or purple, 

 about 6 mm. in diameter : canadensis, Canadian. 



Along banks of streams, river bluffs, shores of lakes, etc., common 

 throughout the state. Distributed from Newfoundland to Minnesota, south 

 to Florida and Louisiana. 



Flowers in April and May, fruit ripe in June and July. Wood very 

 hard, brown, weight 49 lbs. 



Amelanchier oblongifolia (Torrey & Gray) R o e m e r 1847 

 A. spicata of Authors. 



A shrub or small tree, 2-6 meters (6-20 ft.) high, bark as in preced- 

 ing species; leaves oblong, usually rounded at each end, sometimes 

 mucronate at the tip, finely and sharply serrate, densely white tomentose 

 when young, becoming glabrate, usually pale green, especially beneath, 

 4-6 cm. long, 1.5-2.5 cm. wide; flowers in rather dense white tomentose 



