398 Annals of the Carnegie Museum. 



cent nearly simple 3-6-flovvered cymes, are about 20 mm. wide ; 

 calyx glabrous, cup-shaped, the short triangular entire or finely serrate 

 lobes spreading or reflexed after anthesis ; stamens 20, anthers white ; 

 styles 3-4. The fruit, borne in nearly simple few-fruited clusters on 

 glabrate spreading pedicels, is subglobose, 14-16 mm. thick, not quite 

 so long, dark red or mottled with green, sparingly pruinose and capped 

 by the persistent reflexed lobes ; seeds 3-5 ; flesh hard, white or pink. 

 The fruit ripens early in October and falls after the leaves. 



Collected near Carnot, Allegheny county, Pennsylvania, by Mr. J. 

 A. Shafer, of the Carnegie Museum. 



Crataegus viatica n. sp. A tree 3-7 m. in height with numer- 

 ous long spreading and ascending branches forming an oval crown, 

 the slender trunk seldom 1.5 dm. thick ; bark on the trunk dark gray, 

 broken into thin scales and beset with numerous gray thorns, that on 

 the branches gray and smoother. Twigs stout, straight, glabrous, olive- 

 green or russet, becoming gray the third year,armed with numerous slen- 

 der chestnut thorns 2-3 cm. long. Leaves glabrous, thick and firm, 

 dark green above, paler beneath, the blades ovate or broadly ovate or 

 deltoid in outline, 5-7 cm. long, 4-7 cm. wide, acute at the apex, 

 rounded, truncate or obtuse at the base, sharply serrate, 3-5. pairs of 

 shallow lobes ; petiole slender, 3-5 cm long. The flowers, which 

 appear the last of May in many-flowed glabrous cymes, are about 

 18 mm. wide, and on nodding pedicels ; stamens 20, styles 3-4. 

 The fruit, which ripens late in October in many-fruited clusters on 

 nodding pedicels, is globose, about 15 mm. thick, dull green, 

 mottled with pink and russet, pruinose, and capped by the broad, 

 short obtuse, deeply serrate lobes ; flesh hard and green; seeds 4-5, 

 thick and coarse. 



Common in fields, roadsides, and waste land around Pittsburg, 

 Pennsylvania, J. A. Shafer and W. \V. Ashe. Related to C. pniinosa 

 Wild., from which it is separated by the green fruit, larger and broader 

 foliage and obtuse calyx lobes. 



