56 



BILTMORE BOTANICAL STUDIES 



smooth or shallowly grooved and ridged : hypostyle two-thirds 

 the length of the ventral angle. 



Crataegus amnicola is a very handsome, large thorn, and on account of its 

 deep green, ample foliage, symmetrical outline and wealth of flowers and highly 

 colored fruit, is destined to be a favorite in cultivation. The species is abun- 

 dantly represented on river banks and in low woods in eastern Tennessee and 

 adjacent stations in Georgia and Alabama. 



The type material, collected at Chattanooga, Tennessee, and representing 

 flowers (B4239) and fruit (B42J9 2 & 3 ) from the same tree, is preserved in the 

 Biltmore Herbarium. 



Crataegus ingens n. sp. 



A tree 5-8 m tall with a trunk sometimes 3 dm in diameter, 

 branching 2-3™ above ground and forming a large spreading top : 

 bark of the main axis dark gray or brownish, fissured and broken 

 on the surface into numerous plate-like scales ; of the branches 

 smooth, grayish-brown, the growth of the season at first pubes- 

 cent, becoming glabrous and marked by numerous small pale 

 lenticels : leaves obovate, oval or ovate, the blades 2.^-y cm long, 

 I -5 _ 5 cm broad, mostly pointed at the apex, contracted at the base 

 into winged petioles i-2 cm long, the borders serrate or crenate- 

 serrate and shallowly lobed and incised ; they are slightly pubes- 

 cent at the time of unfolding, especially on the upper surface and 

 on the midrib and veins beneath, becoming smooth in age or with 

 some persistent pubescence on the lower surface, firm to subcoria- 

 ceous in texture, dark green, fading in autumn with tones of yel- 

 low, orange, red and brown: flowers io-i3 mm wide, appearing the 

 latter part of April or first of May and when the leaves are more 

 than half grown ; they are produced in compound, many-flowered, 

 pubescent corymbs, the lower branches of which arise from the 

 axils of leaves : pedicels and hypanthium pubescent : sepals 

 linear-lanceolate, 4-6 mm long, glandular : stamens normally 20, 

 the anthers bright purple : fruit, which ripens in October, globose 

 or subglobose, y-g mm wide, red when fully ripe, the flesh firm : 

 nutlets 3-5, about 6 mm long, the lateral surfaces nearly plane and the 

 back either smooth or shallowly grooved and ridged : hypostyle 

 three-fourths as long as the ventral angle. 



CratcBgus ingens frequently develops into a very stocky, spreading tree of 



