104 JOURNAL OF THE ARNOLD ARBORETUM [vol. iv 



veins, 5-7 cm. long and 3.5-4.5 cm. wide; petioles slender, villose, 2-3 cm. 

 in length; leaves on vigorous leading shoots ovate, acuminate, rounded 

 cuneate or truncate at base, more deeply lobed with acuminate lobes 



pointing toward the apex of the leaf, 6.5-8 cm. long and 6-7 cm. wide, 



with petioles 3.5-4 cm. in length. Flowers opening from the 15th to the 



M 



slightly villose mostly 6- or 7-flowered corymbs; calyx-tube narrow- 

 obconic, glabrous, the lobes generally narrowed from a wide base, acumi- 

 nate, entire or furnished with occasional teeth toward the apex; stamens 



20; anthers white, often tinged with pink; styles 3-5. Fruit ripening in 

 October, on slender drooping pedicels, broad-obovoid, subglobose, dark 

 red, 1-1.2 cm. long and 8-10 mm. in diameter; calyx little enlarged, with 

 a wide deep cavity pointed in the bottom and spreading closely appressed 

 persistent lobes; flesh thin, dry and mealy; nutlets 3 or 5, rounded at the 

 ends, broader at apex than at base, rounded and only slightly ridged on 

 the back, 8 or 9 mm. long and 4 or 5 mm. wide, the narrow dark hypostyle 

 extending nearly to the middle. . 



A shrub or a tree up to 4 m. in height, with a short trunk covered with 



ashy gray bark, horizontal and drooping branches, and slender nearly 



straight branchlets orange-green and slightly villose when they first appear, 

 soon glabrous, light red-brown in their second season, becoming light 



gray-brown, and armed with occasional slender nearly straight spines 2-3 

 cm. in length. 



Ohio. Richmond County, n< r Mansfield, R. E. Horsey, No. 384, May 21, 

 1915, September 26, 1915 (type), Wilkinson and Horsey, May 21, 1915; R. E. 

 Horsey, May 25 and October 1, 1916. 



The general appearance of this plant would indicate that it could be 

 well placed with the species of the Asperifoliae Group, but the entire ab- 

 sence of depressions on the inner faces of the nutlets on which this Group 

 was established would seem to require another disposition for it. The 

 other group with which it could be put is the Rotundifoliae. In this group 

 only five species with villose or pubescent corymbs, 20 stamens and yellow 

 or white anthers have been described. From all of these the Mansfield 

 plant differs in the shape of the leaves which resemble those of C. asperifolia 

 Sarg. a species of the Anomalae. Of the five species of the Rotundifoliae 

 with 20 stamens, yellow or white anthers and pubescent corymbs only 

 C. Oakesiana Eggleston from Vermont has obovoid fruit, with soft suc- 

 culent flesh but this is nearly twice as large as that of the Ohio plant. 

 Mr. Horsey 's material is not very good and further study of the tree 

 which are now growing in the Arboretum will perhaps show that this spec- 

 ies should be referred to another group. 



Crataegus pagensis (§ Intricatae), n. sp. 



Leaves ovate to slightly obovate or oval, rounded and short-pointed or 

 acute at apex, concave-cuneate at base, occasionally and slightly lobed 

 above the middle and doubly serrate with short broad acute teeth; tinged 



