156 HANDBOOK 14 8, U.S. DEPARTMENT OF AGRICULTURE 



with pale pores (lenticels); pith slightly 5- 

 angled; leaf scars narrowly crescent-shaped; 

 stipule scars lacking; "berries" (pomes) 

 sometimes drying-persistent, tipped by 5 

 bent-back (rarely nearly erect) calyx lobes 

 rimmed around inside base by 10-20 per- 

 sistent anther stalks; seeds 4-10, small, 

 smooth, dark brown, sometimes asymmetri- 

 cal; species often hard to tell apart; slender 

 shrubs or small trees, in exposed sites or 

 when overbrowsed sometimes dwarfed and 

 prostrate; moist sites, open woods or springy 

 hillsides in drier sites, e. Oreg., e. Wash. 



serviceberries (Amelanchier spp.) 

 42. New twigs purplish red, hairless, with 

 whitish-waxy "bloom" or slightly glossy; 

 buds conspicuous, to V2 inch or more long, 

 purplish red, hairless except for white- 

 hairy fringe on bud-scale margins; branches 

 many, slender, wandlike, flexible; shrubs 

 to 10 feet high; common on basaltic ledges 

 along rivers, e. Oreg., e. Wash.; type local- 

 ity, "On stony hillsides, Union County, 

 Oregon." 



Cusick serviceberry (Amelanchier 



cusickii). 

 42. New twigs and buds not as above, finely 

 soft-white-hairy (sometimes only sparsely 

 so), hairs not matted. 

 43. Bud scales (at least some) densely long- 

 hairy; buds 1/4 to % inch long, dark pur- 

 plish; twigs dark reddish or purplish 

 brown, slender, erect; slender shrubs 3- 

 15 feet high, or sometimes small trees; 

 mostly w. of Cascades, sometimes in 

 Columbia Gorge area, Oreg., Wash.; 

 type locality, "Northwest America," 

 probably along the lower Columbia 

 River, near Vancouver, Wash. 



Pacific serviceberry (Amelanchier 



florida) . 

 43. Bud scales (at least some of them) 

 sparsely, shortly silky-hairy; buds to V4 

 inch long, reddish to dark brown; twigs 

 reddish brown; bark of older twigs dark 

 gray; shrubs or small trees to 20 feet or 

 more high; e. slopes of Cascades, Wal- 

 lowa, Blue Mts., e. Oreg., e. Wash. 

 saskatoon serviceberry (Amelanchier 



alnifolia). 



