BILTMORE BOTANICAL STUDIES 



117 



sepals about 4 mm long, glandular, serrate, reflexed after anthesis : 

 stamens about 20 : fruit, which ripens in August and September, 

 globose, 7~9 m m in diameter : nutlets 3-5, about 6 mm long, the 

 lateral surfaces nearly plane : hypostyle about 4 mm long. 



Cratcegus fiexa grows in dry woods and on the ridges of Rowan county, 

 North Carolina, and was originally collected in August, 1895, aQ d on April 28, 

 1897, near Salisbury (type locality). 



The type specimens are preserved in the Biltmore Herbarium. 



UNIFLOR^S 



Mature fruit globose or nearly so 



Leaves obovate or cuneate, mostly obtuse 



Fruit yellow, orange or greenish-yellow C. unijiora Muench 45 



Fruit red C. armentalis 



Leaves oval, ovate or elliptic, mostly acute 



Leaves frequently lobed or incised : fruit red at 



maturity ..... • C. vailicz Britton 46 



Leaves (exclusive of the shoots) not lobed : fruit 



yellow, orange or greenish-yellow C. raleighensis Ashe 47 



Mature fruit pyriform 



Leaves prevailingly oval, ovate or elliptic C. bisulcata Ashe 43 



Leaves prevailingly obovate or cuneate 



Calyx segments broad and incised C. gregalis 



Calyx segments narrow, entire or serrulate . . . C. earlei Ashe 49 



Crataegus armentalis n. sp. 



A shrub 3<im_ I m tall, usually forming small clumps or covering 

 patches of considerable area, the stems and largest branches 

 armed with slender gray or chestnut-brown spines i-4 cm long : 

 leaves cuneate or spatulate, the blades i-2 cm long, 5~i5 mm wide, 

 either rounded or pointed at the apex, wedge-shaped at the base, 

 the borders serrate, usually only above the middle ; they are 

 slightly pubescent at maturity, and when young are coated on 

 both surfaces with pale, soft hairs, especially on the midrib and 

 principal veins on the lower surface, at first gray-green, but soon 

 bright green, firm in texture, fading in autumn with tones of 

 yellow, red and brown : petioles very short, pubescent : flowers 



45 Hausv. 5 : 147, 1770. 



4 8 Bull. Torr. Bot. Club 24:53, 1897. 



47 Bull. N. C. College Agric. and M. A. No. 175 : 112, 1900. 



48 Bull. N. C. College Agric. and M. A. No. 175 : 112, 1900. 



49 Bull. N. C. College Agric. and M. A. No. 175.- 112, 1900. 



