ROSACES 



479 



lose corymbs, with oblong-obovate glandular-serrate villose bracts and bractlets; calyx- 

 tube narrowly obconic, hoary-tomentose, the lobes short, acute, coarsely glandular-serrate, 

 tomentose; stamens 20; anthers small, dark red; styles 5, surrounded at base by tufts 

 of long snow-white hairs. Fruit ripening after the middle of October, on slender nearly 

 glabrous pedicels, in few-fruited tomentose spreading clusters, subglobose but often rather 

 longer than broad, rounded at the ends, tomentose until nearly fully grown, glabrous at 

 maturity, dark red, marked by numerous large pale dots, about \' in diameter; calyx 

 prominent, with short spreading often deciduous lobes; flesh thin, light yellow, hard and 

 dry, generally shrivelling before the fruit falls; nutlets 5, rounded and ridged on the back, 

 about j' long. 



A tree, remarkable for the lustre of its white tomentum, occasionally 25 high, with a 

 tall trunk 6'-8' in diameter, covered with light gray scaly bark, becoming near the base of 

 old trees deeply furrowed and nearly black, ascending branches forming a broad symmet- 

 rical head, and branchlets coated when they first appear with hoary tomentum, becoming 

 light red-brown and more or less villose during their first season, glabrous and rather 

 darker in their second year, and armed with numerous straight or slightly curved chestnut- 

 brown shining spines usually l'-lj' long. 



Distribution. Sandy bottom-lands in open Live Oak-forests on the Brazos River, 

 near Columbia, Brazoria County, Texas. 



84. Crataegus pyriformis Britt. 



Leaves oval to broad-ovate, acute and often short-pointed at apex, gradually narrowed 

 and concave-cuneate at the entire base, sharply and sometimes doubly serrate above with 

 straight glandular teeth, and often slightly and irregularly lobed above the middle, fully 



Fig. 436 



grown when the flowers open about the 10th of May and then thin, light yellow-green, 

 roughened above by short rigid pale hairs and pubescent below, particularly on the slen- 

 der midrib and 5 or 6 pairs of remote primary veins, and at maturity thin and firm, lus- 

 trous and scabrate on the upper surface, pale and pubescent on the lower surface, and 

 generally about 3' long and 2' wide; petioles slender, winged at apex, tomentose, ultimately 

 pubescent, l'~H' in length; leaves at the end of vigorous shoots usually ovate, coarsely 

 serrate, more deeply lobed, and frequently 4'-5' long and 3'-4' wide. Flowers 1' in diam- 

 eter, on long slender tomentose pedicels, in broad many-flowered lax corymbs; calyx-tube 

 narrowly obconic, villose, the lobes narrow, acuminate, glandular-serrate, and covered 

 more or less thickly with pale hairs; stamens 20; anthers pale rose color; styles 4 or 5, usu- 

 ally 5, surrounded at base by a broad ring of pale tomentum. Fruit ripening in October, on 



