Eggert's Thorn 



467 



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

 slightly hair}', 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 Fig. 419- - Twin Mountain Thorn. 



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 Crataegus coccinioides Ashe 

 Cratagus Eggertii Britton 



Eggert's thorn 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, 



