190 



JOURNAL OF THE ARNOLD ARBORETUM [vol. hi 



length 



March 



10-15 



crowded on the branches; calyx-tube narrow-obconic, glabrous except for 

 occasional short white hairs, the lobes gradually narrowed from the base, 

 entire or rarely minutely dentate, glabrous on the outer surface, villose 

 on the inner surface, mostly deciduous from the ripe fruit; stamens 20; 

 anthers pale yellow; styles 4 or 5. Fruit ripening early in October, on 

 nearly glabrous pedicels, in few-fruited drooping clusters, subglobose to 

 short-oblong or slightly obovoid, dark red, 9-10 mm. in diameter, the 

 calyx little enlarged, with a narrow deep cavity pointed in the bottom; 

 nutlets 4 or 5, narrowed and rounded at the ends, only slightly grooved on 

 the back, about 5 mm. long, the dark narrow hypostyle extending to below 



the middle. 



A shrub 4-5 m. high, with stems covered with gray slightly scaly 

 bark, small erect smooth dark gray branches and slender slightly zigzag 

 branchlets densely covered with white hairs early in the season, becoming 

 glabrous and dull reddish brown by autumn, and dark gray the following 

 year and apparently without spines. 



Texas. Fort Bend County, Duke, E. J. Palmer, Nos. 5090 (8) and 

 6698 (8), April 2 and October 1914 (type). 



The size of the fruit of this species is intermediate between that of 

 typical C. viridis Linnaeus and that of a small group of species with fruit 

 from 1.5-2 cm. in diameter of which C. nitida Sargent is the best known. 

 Although much more pubescent, this Texas shrub resembles in the shape 

 of its leaves another of the large-fruited Virides species, C. atrorubens 

 Ashe of East St. Louis, Illinois. 



Crataegus antiplasta (§ Virides), n. sp. 



Leaves ovate to elliptic or semiorbicular, acute or rounded at apex, 

 cuneate at base, finely doubly serrate above the middle with straight 

 teeth, dark ml and covered with short white hairs when they unfold, 

 almost fully grown when the flowers open and then nearly glabrous above 

 and slightly villose along the midrib and primary veins below, and at 

 maturity thin, dark green and glabrous on the upper surface, paler and 

 glabrous or still villose on the midrib and veins below, 3-4 cm. long and 

 2-3 cm. wide, with veins slightly impressed above; petioles slender, slightly 

 wing-margined at apex, villose early in the season, becoming glabrous, 



1-1.5 cm. in length; leaves on vigorous shoots ovate to suborbicular, acute 

 at apex, rounded or euneate at base, more coarsely serrate, sometimes 

 slightly 3-lobed by narrow sinuses, up to 5 or 6 em. long and 3-4 em. wide, 

 their petioles stout, broadly wing-margined nearly to the middle, occasion- 

 ally glandular, often sparingly villose through the season, 8-10 mm. in 

 length. Flowers opening late in March or early in April, 2.5 cm. in diam- 

 eter, in compact glabrous mostly 5-10-flowered corymbs; calyx-tube 

 narrow-obconic, glabrous, the lobes gradually narrowed from a broad 



