2 JOURNAL OF THE ARNOLD ARBORETUM [vol. m 



The narrow oblong-obovate finely serrate leaves and ellipsoidal fruit 

 distinguish this species from C. Reverchonii Sargent of the Dallas region 

 of Texas, with nearly orbicular coarsely serrate leaves and smaller globose 

 fruit, the only Crus-galli species with glabrous corymbs, 10 stamens and 

 red or pink anthers which has been found before in the Arkansas, western 

 Louisiana and Texas region. 



Crataegus phaneroneura (§Crus-galli), n. sp. 



heaves oblong-obovate, rounded, acute or abruptly short-pointed at 

 apex, gradually narrowed and cuneate at base, finely often doubly serrate 

 usually only to the middle with straight or slightly incurved teeth callous 

 at apex, glabrous with the exception of a few hairs on the upper side of 

 the midrib early in the season, fully grown when the flowers open, 5-7 

 cm. long and 2.5-3.5 cm. wide, with a slender midrib and 7-10 pairs of 

 thin conspicuous primary veins; petioles slender, sparingly villose on 

 the upper side early in the season, soon glabrous, 8-10 mm. in length; 

 leaves on vigorous leading shoots rarely elliptic, more coarsely serrate, 

 upper to 9 cm. long and 5 cm. wide. Flowers appearing from the middle 

 to the 20th of May, 1.5 cm. in diameter, in broad loose 10-20-f lowered, 

 slightly villose or nearly glabrous corymbs; calyx-tube narrow-obconic, 

 glabrous, the lobes slender, acuminate, entire, glabrous; stamens 5 or 6, 

 anthers cream color; styles 1-3. Fruit ripening the end of September 

 in long-branched drooping few-fruited clusters, subglobose, dull red, 

 10-12 mm. in diameter, with thin dry flesh, the calyx not enlarged, with 

 a broad shallow cavity rounded in the bottom; nutlets rounded at the 

 broad ends, only slightly ridged on the back, 6-7 mm. long and 5 mm. 

 wide, the narrow hypostyle extending to the middle. 



A tree 5-7m. high, with a trunk 18-20 cm. in diameter, spreading and 



erect branches forming an open narrow head, and stout nearly straight 

 branch lets covered when they first appear with matted pale hairs, soon 



glabrous, light reddish brown during their first season, becoming reddish 



or gray -brown and armed with many stout or slender straight or slightly 

 curved purple or gray spines 5-6 cm. in length. 



Missouri. Pike County, hillsides, Clarksvillo, John Davis, No. 1466. 

 November 23, 1912, No. 1468, September 23, 1912, No. 1474, May 20 and Sept- 

 ember 23, 1912 (type), No. 1475, May 20, 1012, with glabrous corymbs arid young 

 branches. 



This handsome plant is easily distinguished from all related species 

 in the nore numerous and conspicuous primary veins of the leaves which 

 are similar in the form with villose corymbs and young branchlets which 

 is here considered the type, and in the glabrous form which when the 

 tree is better known will probably be best considered a distinct variety. 



