148 



TREES OF NORTH AMERICA 



A tree, 20-30, high with a trunk occasionally 12'-18' in diameter, spreading branches, 

 and glabrous or pubescent red-brown or gray-brown branchlets; or more often a shrub. 

 Bark dark, sometimes nearly black, deeply divided into broad ridges covered by small 

 closely appressed scales. 



Distribution. Borders of swamps and streams; coast of North Carolina southward to 

 the Everglade Keys of Florida, ranging westward in Florida to the valley of the Saint 

 Marks River, Wakulla County; in Cuba. 



A variety with narrower summer leaves and longer petioles is var. venulosa Schn. 



Distribution. Newbern, Craven County, North Carolina, southward near the coast to 

 northern and western Florida, ranging inland in Georgia to the banks of the Savannah 

 River near Augusta, Richmond County, and to Traders Hill, Charlton County; in the 

 neighborhood of New Orleans, Louisiana (Drummond) ; in southwestern Oklahoma and in 

 western Texas (Blan,co, Kendall, Kerr, Bandera and Uvalde Counties). 



A variety with obtuse stipules, usually glabrous branchlets and lanceolate or narrow 

 elliptic-lanceolate leaves is distinguished as var. Wardii Schn. 



A shrub or small tree. 



Distribution. Banks of the Potomac River, District of Columbia, and Alleghany 

 County, Maryland to Natural, Rockbridge, Fairfax and Elizabeth Counties, Virginia; 

 northern Kentucky; northern Tennessee; northeastern Mississippi (near luka, Tishamingo 

 County); St. Clair and Madison Counties, Illinois; more abundant in Missouri from Pike 

 County southward to southwestern Kansas, western Arkansas and eastern Oklahoma. 



8. Salix lasiandra Benth. Yellow Willow. 



Leaves lanceolate to ovate-lanceolate, acuminate and long-pointed at apex, cuneate or 

 rounded at base, often slightly falcate, finely serrate, glabrous, dark green and lustrous 

 above, pale or glaucous below, l^'-3' long, about \' w r ide, on vigorous summer shoots often 



Fig. 142 



<>' or 7' long and 1^' wide; petioles slender, glabrous, glandular at apex, \' in length, or on 

 summer shoots stout and \'-\\' long; stipules reniform, caducous. Flowers: aments ter- 

 minal on leafy puberulous branchlets, narrow-cylindric, 2f '-3' in length; scales pale pubes- 

 cent, those of the staminate ament lanceolate-acuminate to obovate and rounded at apex 

 and entire, those of the pistillate ament obovate and usually dentate near the apex; sta- 

 mens 5-9 ; filaments hairy below the middle; ovary rather abruptly narrowed above the 

 middle and acuminate, long-stalked; style short with slightly emarginate lobes. Fruit 

 light red-brown, \' long; pedicels about tV in length. 



