478 



The Thorn Trees 



forming a wide, irregular crown; the bark is light gray, scaly; the twigs are red- 

 brown, with numerous curved spines from 3 to 5 cm. long. 



The leaves are elhptic-ovate, 4 to 8 cm. long, 3 to 7 cm. wide, pointed or 



abruptly long-pointed at the apex, ab- 

 ruptly wedge-shaped or rounded at the 

 base, doubly toothed and lobed above, 

 thin, yellow-green, sHghtly hairy above 

 when young, becoming rough, smooth 

 beneath; leaf- stalks slightly winged, 2 

 to 4 cm. long. The flowers are about 

 15 mm. wide, in many-flowered, hairy 

 corymbs; calyx-tube long-hairy below, 

 the lobes smooth on the under surface, 

 long-hairy on the upper surface, glan- 

 dular-toothed, with small teeth; sta- 

 mens 7 to 10; anthers small, dark rose; 

 styles 2 or 3. The fruit ripens about 

 Fig. 435- -Rough-leaved Thorn. ^j^g middle of October; it is subglobose 



to short-oblong, about 15 mm. thick, scarlet; its calyx- lobes are erect or incurved; 

 flesh thick, yellow; pedicels hairy; it contains 2 or 3 nutlets 7 to 8 mm. long, 

 with strongly ridged backs, and with shallow longitudinal pits on the inner face, 

 the nest of nutlets 7 to 8 mm, thick. 



46. BRAINERD'S THORN Crataegus Brainerdi Sargent 

 CmtcEgus Schuettei Ashe. Cratagus Forbesce Sargent 



Brainerd's thorn is common in western New England and ranges south to 

 Pennsylvania and west to northern Illinois 

 and Wisconsin. It is commonly a round- 

 topped shrub, but often a tree 6 meters 

 high, with ascending branches; the scaly 

 bark is gray-brown, the twigs reddish 

 brown, smooth, and armed with chestnut- 

 brown spines from 3 to 6 cm. long. 



The leaves are ovate, 3 to 9 cm. long, 

 2 to 6 cm. wide, broadly wedge-shaped at 

 the base, pointed at the apex, doubly 

 toothed, with 4 to 6 pairs of short-pointed 

 lobes, shghtly hairy on the upper surface 

 when young, rather thin, bright green 

 above, paler beneath; the leaf-stalks are 



,. , , . Fig. 436. Brainerd's Thorn. 



slightly wmged above, i to 2 cm. long. 



The flowers are about 2 cm. broad, in many-flowered, smooth corymbs; calyx- 



