BROUSSONETIA 89 



times 14 m. high, the young shoots hirsute-tomentose, relatively 

 thick, greenish- gray. Introduced from Asia, spread from culti- 

 vation and naturalized (Fig. 89). 



MACLURA Nutt. (Moraceae) 



Deciduous trees with large axillary spines and milky juice. 

 Twigs moderate, rounded, glabrous; pith moderate, round, pale, 

 continuous. Buds small, depressed-globose, sessile, solitary 

 or multiple, with about 5 scales; end-bud lacking. Leaf-scars 

 alternate, half-round or triangular; bundle-traces several; stipule- 

 scars small. Toxylon Raf. 



1. M. pomifera (Raf. ) Schneid. Osage-Orange. Hedge-Apple . 

 A tree 10-20 m. high, with ridged brown bark and spreading 

 branches; twigs buff or orange, glabrous; wood bright orange. 

 Native in Texas, Oklahoma, and Arkansas, much cultivated and 

 naturalized eastwards and northwards (Fig. 90). 



PYRULARIA Michx. (Santalaceae) 



Deciduous shrubs parasitic on roots of surrounding plants. 

 Twigs rather large, terete, pubescent when young; pith large, 

 rounded. Buds ovoid, brown. Leaf- scars alternate, rounded; 

 bundle-traces 3; stipules none. In addition to the leaf-scars, there 

 are conspicuous branch-scars , formed by self-pruning of young 

 twigs, in which the bundle-traces are numerous, in an ellipse. 



1. P_, pubera Michx. Buffalonut. A straggling or erect much- 

 branched shrub 1-4 m.high, with terete twigs. Rich woods, moun- 

 tains of Pennsylvania and West Virginia to Georgia and Alabama 

 (Fig. 91). 



PHORADENDRON Nutt. (Loranthaceae) 



Yellowish-green woody parasites on the branches of trees, with 

 jointed, much-branched stems and thick firm persistent leaves. 

 Fruit an ovoid or globose fleshy berry. 



1. P^ flavescens (Pursh) Nutt. American Mistletoe. A bran- 

 ching glabrous or slightly pubescent shrub, the twigs rather stout, 

 terete, brittle at the base; leaves oblong or obovate, rounded at 

 the apex, narrowed into short petioles, entire, 2.5-5 cm. long, 

 1-2 cm. wide, dark-green, leathery; berry globose, white, about 

 4 mm. in diameter. On various trees, Florida to Texas, north 

 to New Jersey, West Virginia and Kansas (Fig. 92). 



