BILTMORE BOTANICAL STUDIES 



123 



in autumn with tones of yellow, orange and brown : petioles i-3 cm 

 long, glabrous : flowers i6-20 mm wide, opening about the ioth of 

 May and when the leaves are almost fully grown ; they are pro- 

 duced in simple or subsimple, 4-10-flowered corymbs which ter- 

 minate short, leafy branchlets : pedicels and hypanthium glabrous: 

 sepals 4~5 mm long, entire or serrulate, reflexed after anthesis : 

 stamens normally 20, the anthers light purple : fruit, which ripens 

 in September and October, subglobose, 8-i2 mm thick, obtusely 

 angled and conspicuously swollen below the middle, at maturity 

 red or ruddy, the flesh firm : nutlets 3-5, 6-7 mm long, the lateral 

 surfaces almost plane : hypostyle about half the length of the 

 ventral angle. 



Cratczgus arcana grows in woods and old fields near Biltmore, North 

 Carolina (type locality). 



The type material, representing flowers and fruit from the same tree, is pre- 

 served in the Biltmore Herbarium. 



Crataegus callida n. sp. 



A shrub or small tree 2-5 m tall with one or more stems, some- 

 times with a short trunk i.5~2 dm in diameter, covered with dark 

 gray or brownish scaly bark, the spreading and ascending branches 

 frequently armed with stout, chestnut-brown or gray spines 2~5 cm 

 long : leaves ovate, 2-7 cm long exclusive of the petioles, 2-6 cm 

 wide, acute or acuminate at the apex, rounded, truncate or sub- 

 cordate at the base, the borders serrate and with several pairs of 

 short, point-like lobes ; they are glabrous at maturity, and when 

 young usually bear some slight pubescence at the base of the 

 blade on the upper surface and along the base of the midrib or in 

 the axils of the prominent veins beneath, bright green, firm in tex- 

 ture, fading in autumn with tones of yellow, red and brown : 

 petioles i~3 cm long, glabrous : flowers about 2 cm wide, expanding 

 about the 25th of April and when the leaves are half to two- 

 thirds grown; they are disposed in subsimple or compound, 

 5-10-flowered corymbs, the lower branches of which arise from 

 the axils of leaves : pedicels and hypanthium glabrous : sepals 

 3~5 mm long, mostly entire, reflexed after anthesis: stamens 20, the 

 anthers very pale yellow or almost white : fruit, which ripens in 

 September and October, depressed-globose, 8-io mm wide, at 



