1X2 ]>Ksri;iiTi<>xs OF TIIK SHRUBS 



KEY TO THE SPECIES OF AMELANCHIER 



* Tall-gn>\\ ing more or less tree-like forms. (A.) 



A. Upright round-headed tree 25-40 feet ; leaves ovate with rounded 

 or notched base (3-4 inches long), serrated edge, dark and dull 

 green above ; fruit |-J inch, red to purple with a bloom. SHAD 

 Brsii or SI.KVH K-IU:RRY (277) Amelanchier canadensis. 



A. Shrub or small tree, though sometimes reaching the height of 

 :!i i feet ; leaves oval-oblong pointed at tip, rounded and sometimes 

 imtched at base, densely white-woolly beneath when young and 

 somewhat so even in age ; flower-clusters short and many- 

 flowered, petals \ inch long; fruit globular ( inch). SHAD 

 BUSH or COMMON DWARF or NORTHWESTERN JUNEUERRY 

 Amelanchier canadensis Botryapium (A. Botryapium). 



A. Shrub or tree 12 feet with broad blunt coarsely notched thick 

 leaves (1-1 \ inches broad and long) ; fruit large sometimes 

 nearly 1 inch, dark blue to black. ALDER-LEAVED SERVICE- 

 BERRY (278) Amelanchier alnifolia. 



* More shrubby growths (oligocarpa, the tallest, less than 10 feet). (B.) 



B. Low straggling bush with rounded coarsely notched leaves (1-3 

 inches long) ; petals f inch long. ROUND-LEAVED JLNEBERRY 

 Amelanchier spicata (A. rotundifolia). 



B. Low, 1-3 feet high ; leaves f-l inches long usually rounded at 

 both ends, serrate ; petals short and only about \ inch long. 

 Low JUNEBERRY (279) Amelanchier spicata. 



B. Shrub 2-9 feet high with nearly solitary flowers (1 to 4) ; leaves 

 narrow about 3 times as long as broad, sharply serrate ; fruit 

 pear-shaped (| inch long). OBLONG-FRUITED JUNEBERRY (280) 

 - Amelanchier oligocarpa. 



Pyrus. The PEARS Pyrus, APPLES Malus, QUINCES Cydonia, 

 MOUNTAIN ASHES S6rbus, CHOKEBE"RRIES Aronia, and MEDLARS 

 Me'spilus are often united into the one generic group Pyrus and for 

 our purpose are placed in one key. Most of the species are cultivated for 

 their useful fruits and are trees in form and size and so not properly in- 

 cluded here. A few are always shrubby and some are very ornamental. 



The most extensively cultivated species is JAPAN or FLOWERING QUINCE 

 (L'sl) Pyrus japdnica, a thorny shrub with large red, scarlet, or 

 white flowers in early spring, about the time the leaves expand. The large 

 not very edible quince-like fruit is ripe in the fall. The leaves are alter- 

 nate, simple, notched, and have at their bases conspicuous stipules. The 

 flowers, it' single, h;i\v ."> nearly orbicular petals and usually grow in 



