52 POMACES. 



corymbosely clustered, white or reddish. Calyx-tnbe urceolate or cam- 

 panulate, more or less coherent with the ovary, the usually short free 

 portion lined with an annular or laminar staminiferous disk ; limb 

 5-lobed, imbricate in aestivation. Petals 5, perigynous. Stamens mostly 

 20, inserted on the disk. Pistil compound ; ovary of 2, 3 or 5 carpels, 

 becoming a pome ; styles as many as the carpels. Seeds usually 2 in 

 each cell, collateral, ascending ; cotyledons fleshy ; albumen 0. — Like 

 the preceding a small order, important as yielding such fruits as the 

 apple, pear, quince, etc. 



1. AMELANCHIER, Lo6<'/m,s( Service-Berry. June-Berry). Shrubs 

 with deciduous oblong or rounded serrate or subentire leaves, and bracted 

 racemose white flowers appearing with them in early spring ; the bracts 

 caducous. Oalyx-tube broadly turbinate ; segments as long as the tube, 

 erect or reflexed in flower. Petals from linear-oblong and plane to 

 obovate and concave. Stamens 20, much shorter than the petals. Styles 

 3 — 5, coalescent at base or distinct ; carpels as many, incompletely 2- 

 celled, but only 1-seeded. Fruit small, berry-like, crowned with the 

 persistent calyx-lobes, of a dark purple and more or less glaucous, the 

 pulp sweet and edible. Seeds small, with a thin black testa. 



1. A. alnifolia, Nutt. Journ. Philad. Acad. vii. 22 (1834) : Gen. i. 306 

 (1818), under Aronia : A. florida, Lindl. Bot. Reg. t. 1589 (1833). Arbo- 

 rescent, but seldom 10 ft. high : leaves nearly full grown at flowering 

 time, but thin, dark green, oval or oblong-ovate, obtuse at both ends, 

 coarsely serrate toward the apex, otherwise entire, woolly-pubescent 

 beneath, even in age : racemes oo - flowered ; bracts setaceous, long- 

 woolly : calyx densely tomentose, the triangular lanceolate teeth closely 

 reflexed : petals spatiilate-linear, % in. long, plane : stamens very short, 

 not equalling the calyx-teeth. Along streams in the mountain districts, 

 from Lake and Mendocino counties northward ; perhaps also southward. 

 What is probably a dwarf condition of this species, with leaves almost 

 entire, is found on northward slopes of the Oakland Hills, and in similar 

 situations among the Mission Hills, San Francisco. Fl. Apr. fr. June. 



2. A. glabra. Stout, divaricately branched : leaves at flowering time 

 very thin, deep green, ^^ in. long, broadly obovate to orbicular, truncate 

 or refuse, the margin sharply and rather deeply serrate all around except 

 at the very base, glabrous throughout : racemes few-flowered : bracts 

 glabrous : calyx glabrous ; the broadly triangular sharply acuminate 

 lobes erect : petals cuneate-oblong, less than ^^ ^^- long ; stamens a 

 little exceeding the calyx. — In the Douner Lake region of the Sierra 

 Nevada, Rev. Dr. Bont'', June, 1888 ; the specimens in flower only. The 

 total absence of all pubescence from the floral organs and even the 

 bracts of the raceme, together with the shape and attitude of the calyx- 

 teeth, mark this as a very distinct species. 



