ROSACEA 



489 



October, subglobose, bright scarlet, lustrous, about ^' in diameter; calyx only 

 slightly enlarged, witli reflexed lobes; flesh thin, dry and mealy; nutlets 3-5, full 



and rounded at the apex, narrowed at the base, rounded and sometimes slightly 

 ridged on the back, jq'-^' long. 



A tree, 18-25 high, with a straight trunk occasionally 8'-10' in diameter, slender 

 upright and spreading branches forming a broad open head, and thin zigzag gla- 

 brous light reddish brown branchlets, unarmed, or armed with straight stout light 

 brown spines I'-l^' long; more often a shrub, with numerous spreading stems. 



Distribution. Rich soil usually near the banks of streams or swamps, or low de- 

 pressions in Pine forests; coast region of the south Atlantic states from southern 

 Virginia to northern Florida, and through the Gulf states to the valleys of the 

 Washita River, Arkansas, and of the Colorado River, Texas; very abundant and of 

 its largest size on the bottom-lands of western Louisiana, eastern Texas, and 

 southern Arkansas. 



XVI. BRACHYACANTHiE. 



Leaves lanceolate-oblong' to ovate or rhoraboidal; ovate to nearly triangular on vigorous 

 shoots ; fruit subglobose to obovate, bright blue covered with a glaucous bloom. 



119. C. brachyacantha (C). 



Leaves narrowly rhomboidal to oval ; lanceolate-acuminate on vigorous shoots ; fruit glo- 

 bose, blue-black, very lustrous. 120. C. saligna (F). 



119. Crataegus brachyacantha, Sarg. & Engelm. Pomette Bleue. 



Leaves lanceolate-oblong to ovate or rhomboidal, acute or rounded at the apex, 

 gradually narrowed to the concave-cuneate entire base, crenulate-serrate above, with 

 minute incurved glandular teeth, slightly puberulous when they unfold on the upper 

 and glabrous on the under surface, nearly fully grown when the flowers open at the 

 end of April and early in May, and at maturity subcoriaceous, glabrous, dark green 

 and lustrous, l'-2' long, ^' to nearly 1' wide, with thin inconspicuous midribs and 

 veins; their petioles slender, narrowly wing-margined above, -j'-f long, on vigorous 

 shoots sometimes broadly ovate or almost triangular, wedge-shaped, truncate, or 

 heart-shaped at the broad base, more or less deeply lobed, frequently 2^' long and 2' 

 wide, with foliaceous broadly ovate to triangular acute stalked stipules sometimes V 



