BILTMORE BOTANICAL STUDIES 



119 



MOLLES 



Hypanthium tomentose or pubescent 



Flowers at least 2 cm broad : fruit not depressed- 

 globose 

 Anthers yellow 



Fruit ripening in August-September . . . C, mollis (T. & G.) Scheele 50 



Fruit ripening in October C. arkansana Sargent 51 



Anthers dark red or purplish C. texana Buckley 52 



Flowers about i5 mm broad : fruit depressed-glo- 

 bose C. gravida 



Hypanthium glabrous 



Anthers yellow : leaves finely serrate C. cibaria 



Anthers red or purple : leaves coarsely serrate . C. lacera Sargent 53 



Crataegus gravida n. sp. 



A wide - spreading tree, sometimes 6-7 m tall with a trunk 



2- 2. 5 dm in diameter covered with dark brown scaly bark, the 

 branches sometimes armed with stout chestnut-brown or dark gray 

 spines 5-8 cm long : leaves broadly ovate, the blades 4-g cm long, 



3- 8 cm wide, mostly acute at the apex, rounded, truncate or cordate 

 at the base, the borders serrate and shallowly incised ; they are 

 bright, deep green and glabrous or glabrate and lustrous on 

 the upper surfaces at maturity, pale green and pubescent be- 

 neath, and when young are coated with fine, pale hairs on both 

 surfaces, especially and very densely so along the prominent mid- 

 rib and veins on the lower surface, firm in texture, fading with 

 tones of yellow, orange and brown : petioles i.5~3 cm long, pubes- 

 cent: flowers about I5 mm wide, opening about the first of May 

 and when the leaves are half to two-thirds grown ; they are 

 disposed in dense, compact, subsimple or compound, hirsute- 

 tomentose, many-flowered corymbs, the lower branches of which 

 arise from the axils of leaves : pedicels and hypanthium hir- 

 sute-tomentose : sepals 3~5 mm long, glandular-serrate, reflexed 

 after anthesis : stamens about 20 : fruit, which ripens in August 

 and September, depressed-globose, i2-i5 mm in diameter, red at 

 maturity : nutlets mostly 5, about 8 mm long, the lateral surfaces 

 nearly plane : hypostyle 4-5 mm long. 



50 Linnea 21 : 569, 1848. 



5 1 Bot. Gaz. 31 : 223, 1901. 



62 proc. Phila. Acad. i86r : 454. 



53 Bot. Gaz. 33 : 123, 1902. 



