Eggert's Thorn 4^7 



glandular, 2 to 3 cm. long. The flowers are about 15 mm. wide in smooth or 

 slightly hairy, many-flowered corymbs; calyx- lobes lanceolate, long-pointed, glan- 

 dular-toothed; stamens 5 to 8; anthers pink; styles 3 to 5. The fruit ripens early, 

 in August or September; it is pear-shaped or oblong, about 12 mm. thick, crimson; 

 calyx-lobes erect or incurved, conspicuous; flesh yellow, mealy, acid; it contains 

 3 to 5 nutlets, commonly 4, 7 to 9 mm. long, ridged on the back, the nest of 

 nutlets 6 to 8 mm. thick. 



29. TWIN-MOUNTAIN THORN — Crataegus pentandra Sargent 



This species occurs in the foothills of the Appalachian Mountains from Ver- 

 mont to Virginia. It is sometimes a tree 5 

 meters high, but more often a much- 

 branched shrub with ascending, unequal 

 branches; the bark is brown, scaly; the 

 young twigs are chestnut-brown, becoming 

 gray, smooth, and armed with stout, curved 

 reddish brown spines, from 3 to 5 cm. long. 



The leaves are elliptic-ovate, 3 to 8 

 cm. long, 2 to 6 cm. wide, long-pointed at 

 the apex, wedge-shaped at the base, some- 

 times nearly square cut, sharply and irregu- 

 larly doubly toothed with erect sharp teeth, 

 thin, dark green above with a few short 

 hairs, paler and smooth beneath ; leaf-stalks Fk. 419- - Twin Mountain Thom. 



winged toward apex, 2 to 3 cm. long, glandular, with small glands. The flowers are 

 about 15 mm. wide, in smooth, many-flowered corymbs; calyx-lobes ovate, long- 

 pointed, with a few hairs on the upper surface, remotely glandular-toothed; sta- 

 mens 5 to 10; anthers pink; styles 2 to 4. The fruit ripens in September; it is 

 short-oblong, dark crimson, about 15 mm. long and 10 mm. thick; calyx-lobes 

 incurved; flesh succulent and mealy, acid, containing 2 to 4 nutlets (commonly 3), 

 6 to 8 mm.'long; nest 6 to 8 mm. thick; nutlets ridged on the back, ends acute. 



30. EGGERT'S THORN — Oratsegus coccinioides Ashe 

 Cratmgus Eggertii Britton 



Eggert's thom occurs from the vicinity of Montreal through western New 

 England to Missouri and eastern Kansas. It is a tree sometimes 6 meters high, 

 with spreading branches forming a broad round-topped crown; the bark is grayish 

 brown, scaly; the twigs are chestnut-brown, smooth, and are armed with chestnut- 

 brown curved spines from 2 to 6 cm. long. 



The leaves are broadly ovate, 4 to 9 cm. long, 3.5 to 8 cm. wide, pointed at 

 the apex, rounded or square cut at the base, doubly toothed with erect teeth, 



