388 Annals of the Carnegie Museum. 



Mich. Sc. Soc, i6 : p. 2: 78), from which it is separated by the villose 

 pedicels and globular fruit ; while from C. pedicellata Sarg. it is sepa- 

 rated by the larger flowers, fewer stamens and larger foliage ; and 

 ■from C. vil/ipes A^he (C. Holmesiana I'illipes Ashe, Journ. E. Mich. 

 Sci. Soc, 17: p. 2: 11) by the broader foliage, more globose fruit and 

 spreading calyx lobes. The type material was collected in Berks 

 county, Pennsylvania, by Prof. C. L. Gruber and W. W. Ashe. 



Crataegus Gruberi n. sp. A low bushy tree 3-4 m. in height, 

 dividing near the ground into numerous ascending flexuous branches ; 

 the bark on the short trunk ash-gray, broken into small thin loose 

 scales and armed with numerous simple or compound gray thorns ; 

 that on the branches smooth and lighter gray. Twigs glabrous, red- 

 brown, slender, nearly straight, armed with numerous slender straight 

 or curved spreading thorns. Leaves at first minutely pubescent 

 above, soon glabrous on both surfaces, dark green, thin and firm, the 

 blades ovate or broadly ovate, 4-8 cm. long, 4-6 cm. wide, acute at 

 apex, truncate, rounded, or rarely acute at base, sharply doubly ser- 

 rate, with 2-3 pairs of shallow notches ; petiole slender, 2-3 cm. 

 long, grooved on the upper side, with 2-3 pairs of glands near apex. 

 The flowers, which appear when the leaves are about one-half grown, 

 from the middle to the twentieth of May, in 6-1 2 -flowered gla- 

 brous nearly simple 5-8 cm. wide cymes, are 17-20 mm. wide, cup- 

 shaped and on several-bracted glabrous pedicels 1-3 cm. long; calyx 

 obconic, glabrous, the lobes triangular from a broad base, entire ; 

 stamens usually 5, seldom 6, anthers pink; styles 2-3 or rarely 4. 

 The fruit, solitary or in simple few-fruited clusters on spreading pedi- 

 cels, is globular-pyriform, 13 mm. long, 11 mm. thick, light green with 

 russet or scant scarlet blotches, capped by the persistent incurved 

 lobes ; ripens early in October and falls with or before the foliage ; 

 flesh hard and green ; seed 2 or 3 -grooved on the back, the lateral 

 faces plane. 



Fields, Berks county, Pennsylvania, where collected in May and 

 September, by Prof. C. L. Gruber, who has allowed me to associate 

 his name with the plant. 



Crat/egus tenella n. sp. A tree 5-7 m. in height with spreading 

 branches forming an oval crown ; the bark on the sparingly armed 

 trunk dark gray and broken into small scales, that on the branches 

 lighter and smooth. Twigs slender, chestnut brown, armed with 

 long slender slightly curved chestnut thorns 4-5 cm. long. Leaves 



