ROSACES 



415 



and spreading branches, and slender nearly straight branchlets orange-brown and covered 

 with long scattered pale hairs when they first appear, dull red-brown and glabrous at the 

 end of their first season, becoming gray the following year. Bark of the branches smooth 

 and dark brown, becoming slightly scaly on the trunk. 



Distribution. Rocky banks of streams; western Texas (Comal, Kendall, Bandera, 

 Edw r ards, Brown and Calhoun Counties, and on the Davis Mountains, Jeff Davis County); 

 common on the banks of the Guadalupe and other streams on the Edw r ards Plateau. 



Interesting as the extreme southwestern representative of the Crus-galli Group, and its 

 only species in western Texas. 



17. Crataegus denaria Beadl. 



Leaves oval, oblong-obovate or elliptic, acute or acuminate at apex, gradually narrowed 

 from near the middle and cuneate and entire below, and coarsely often doubly serrate above 



Fig. 369 



with straight teeth, when they unfold tinged with red and slightly pilose above and gla- 

 brous below, nearly fully grown when the flowers open toward the end of May, and at 

 maturity firm to subcoriaceous, bright green and lustrous on the upper surface, pale on 

 the lower surface, 2^'-3' long, and f'-li' wide, with a slender midrib and few remote thin 

 primary veins; turning in the autumn orange, yellow, or brown; petioles stout, conspicu- 

 ously glandular, and about \' in length; leaves at the end of vigorous shoots broadly oval 

 to ovate or obovate, occasionally incisely lobed, 2^'-3' long, and l'-2' wide. Flowers 

 \'-\' in diameter, on long slender pedicels, in broad lax many-flowered sparingly villose 

 corymbs; calyx narrowly obconic, glabrous, the lobes slender, elongated, acuminate and 

 glandular at apex, mostly entire or slightly serrate below; stamens usually 10; styles 3-5. 

 Fruit on long slender pedicels, in drooping few-fruited clusters, globose to subglobose, i'-jV 

 in diameter, orange-red, the calyx somewhat enlarged, with spreading or closely appressed 

 lobes; nutlets 3-5, slightly ridged on the back, about T \' long. 



A tree, 18-20 high, with a trunk sometimes 8' in diameter, spreading branches, and 

 branchlets sparingly villose with long matted white hairs when they first appear, soon 

 glabrous, and unarmed or armed with occasional straight slender spines about 1^' long. 



Distribution. Banks of streams, eastern Mississippi; common in the neighborhood of 

 Columbus, Lowndes County. 



18. Crataegus signata Beadl. 



Leaves obovate to elliptic, rounded and often short-pointed or acute at apex, gradually 

 narrowed from near the middle and cuneate at the entire base, and sharply glandular- 



