ROSACES 



431 



above, paler below, 2'-2|' long, and lj'-li' wide; petioles slender, early in the season to- 

 raentose, becoming glabrous or puberulous, i'-f' in length; leaves at the end of vigorous 

 shoots broad-ovate or oblong, rounded or broad-cuneate at base, coarsely dentate, 5' long, 

 and 2|' w y ide, Flowers f in diameter, on long slender pedicels, in broad slightly villose 7 

 or 8-flowered corymbs; calyx-tube narrowly obconic, coated with long matted pale hairs, 

 the lobes narrow, acuminate, obscurely glandular-serrate or nearly entire, villose on both 

 surfaces; stamens 20; anthers small, dark red; styles 5, surrounded at base by a thin ring of 

 hoary tomentum. Fruit ripening after the 1st of October, in spreading or drooping few- 

 fruited clusters, subglobose and often rather longer than broad, bright canary-yellow, 

 marked by occasional dark dots, %'-%' long; calyx prominent, the lobes usually deciduous 

 before the fruit ripens; flesh thin, light yellow, rather dry but sweet and edible; nutlets 

 5, rounded and grooved on the back, \' long. 



A tree, 20-25 high, with a tall straight trunk 8'-10' in diameter, numerous ascending 

 branches forming a handsome symmetrical round-topped head, and branchlets covered 

 when they first appear with matted pale hairs, dull reddish brown and often puberulous 

 in their second season, and reddish brow T n the following year, and unarmed or occasionally 

 armed with long thin gray spines. 



Distribution. Low rich woods near the banks of the Brazos River, Columbia and Bra- 

 zoria, Brazoria County, Texas. 



35. Crataegus dallasiana Sarg. 



Leaves oblong, acute, acuminate or rounded at apex, gradually narrowed to the concave- 

 cuneate entire base, coarsely doubly serrate above w T ith straight glandular teeth, and usu- 

 ally slightly lobed above the middle, coated below with thick hoary tomentum and villose 



Fig. 387 



above as they unfold, nearly fully grown and villose or tomentose below when the flowers 

 open early in April, and at maturity thin, dark yellow-green, glabrous and lustrous on the 

 upper surface, pale and pubescent on the lower surface on the slender midrib and 3 or 4 

 pairs of thin arching veins, l-f-2^' long, and 1 \'-\\' wide; petioles slender, wing-margined 

 toward the apex, hoary-tomentose early in the season, becoming glabrous, about \' in 

 length. Flowers about f in diameter, on long slender hairy pedicels, in many-flowered 

 densely villose corymbs; calyx-tube narrowly obconic, densely coated with long matted 

 pale hairs, the lobes slender, acuminate, tipped with a minute red gland, sparingly and 

 irregularly glandular-serrate, villose; stamens 20; anthers light rose color; styles 5. Fruit 

 ripening at midsummer, on stout erect slightly hairy pedicels, in few-fruited clusters, sub- 



