The Trees of Texas 109 
4. Crataegus brachycantha Sarg. and Engelm. A tree 
18°-25° high with trunk diameter of 8’-10’, branches upright, 
spreading to form a rather broad rounded crown; branchlets 
armed with straight light brown spines 1’-114’ long. Bark 
dark brown and rather deeply fissured on mature trunks, 
light brown on yvounger twigs. Leaves lanceolate-oblong to 
ovate, serrate above the middle, 1’-2’ long 14’-1’ wide, dark 
green above, paler beneath. Flowers in many flowered cor- 
ymbs. Fruit ripening in August, bright blue, 14’-15’ in 
diameter. 
Northwestern Louisiana to eastern Texas. 
5. Crataegus Brazoria Sargent. A small round topped 
tree 20°-25° high with ascending branches, gray scaly bark, 
and long gray spines. Leaves oval to obovate, wedge-shaped 
and entire at base, rounded or pointed at apex, serrate, smooth, 
lustrous green aboce, 2’-214’ long, 114’-144’ wide, pale be- 
neath with a few hairs. Flowers in many flowered corymbs, 
the pedicels and calyx hairy. Fruit ripening in autumn, sub- 
globose, bright canary yellow. 
In rich woods and bottom lands along the Brazos River. 
6. Crataegus aestivalis. A medium sized tree 20°-30° 
high and 12’-18’ in diameter with straight or divided trunk, 
reddisk, armed twigs and scaly, reddish brown bark. Leaves 
elliptical, oblong or obovate, 114’-2’ long, 14’-1’ wide, entire 
at base, notched or toothed above the middle, smooth above, 
with rusty hairs alonz the veins and midrib below. Corymb 
2-5 flowered. Fruit ripening in May, depressed globose, 
1/2’-2/5’ in diameter, bright red with pale spots, and thick, 
juicy iiesh. 
Florida to Arkansas, Louisiana and eastern Texas, 
7. Crataegus viridis L. Southern Thorn. <A smaJl round 
topped tree 20°-30° high and 18’-20’ in diamter with orange 
colored bark, gray to reddish brown twigs and slender short 
spines. Leayes oblong-obovate, pointed or rounded at the 
apex. wedge-shaped ard entire at base. serrate above with 
olandular teeth or some of them 3-lobed toward the apex, 1’-3’ 
long. 14’-114’ wide, smooth above with hairs in the axils of 
veins below. Corymbs smooth, many flowered. Fruit ripen- 
