BILTMORE BOTANICAL STUDIES 



137 



subcoriaceous in texture, fading with tones of yellow, brown and 

 orange: petioles 5-io mm long, margined: flowers produced in 

 compound, glabrous, many-flowered corymbs, the lowest branches 

 of which arise from the axils of leaves : pedicels and hypanthium 

 glabrous : sepals 2.5-4™™ long, entire or slightly serrate, spreading 

 or reflexed after anthesis : stamens 7-10: fruit, which ripens in 

 September and October, globose or nearly so, 5~8 mm wide, dull 

 red, pruinose : nutlets 1-2, 6~7 mm long, the ventral surface nearly 

 plane : hypostyle 3~4 mm long. 



Crataegus armata grows on the limestone hills and ridges of middle Tennes- 

 see and northern Alabama, and near Nashville, Tennessee (type locality), is rela- 

 tively common. 



The type specimens (H771 and H126Q) are preserved in the Biltmore Her- 

 barium. 



Crataegus arborea n. sp. 



A tree sometimes 8-io m tall with a trunk 2-3 dm in diameter, 

 covered with dark gray, fissured, exfoliating bark, the spreading 

 or ascending branches, which are usually unarmed, forming a 

 wide crown : leaves obovate-cuneiform or oblanceolate, the blades 

 2-6 cm long, i2 mm -4 cm wide, rounded or pointed at the apex, wedge- 

 shaped at the base, the margins serrate except at the base or 

 below the middle ; they are glabrous, bright green and lustrous on 

 the upper surface, pale and glabrous beneath, firm to subcoria- 

 ceous in texture, fading with tones of yellow, orange and brown : 

 petioles 5-1 S mm long, winged or margined: flowers 1 2-1 5 mm wide, 

 opening about the middle of April and when the leaves are almost 

 fully grown; they are produced in glabrous, compound, many- 

 flowered corymbs, the lower branches of which are axillary : pedi- 

 cels and hypanthium glabrous: sepals 2.5~4 mm long, mostly entire, 

 spreading or reflexed after anthesis : stamens about 20, the anthers 

 light yellow : fruit, which ripens in September and October, glo- 

 bose or subglobose, 6-g mm thick, red or ruddy at maturity : nutlets 

 mostly 2, about J mm long, the ventral surface nearly plane : hypo- 

 style 4-5 mm long. 



Cratcegus arborea grows in pine woods, mostly in clay soil, at Montgomery, 

 Alabama (type locality). 



The original specimens (B2170 and B2/70 2 ) are preserved in the Biltmore 

 Herbarium. — C. D. Beadle. 



