734 TREES OF NORTH AMERICA 



surface, a third shorter than the lanceolate petals; staminodia oblong-obovate, bluntly 

 pointed at apex, a third shorter than the petals; ovary villose; style covered with rufous to- 

 mentum. Fruit short-oblong to oblong-obovoid, rounded or pointed at apex, ' |' Jong, 

 and covered with short thick rufous tomentum. 



A tree, usually 60-70, or sometimes 120-130 high, with a tall trunk 3-4 in diameter, 

 small often pendulous branches forming a broad round-topped head, slender smooth gla- 



Fig, 659 



brous light gray or light brown branchlets marked by numerous oblong dark lenticels, be- 

 coming darker in their second and dark gray or brown and conspicuously rugose in their 

 third year. Winter-buds dark red, ovoid, about \' long. Bark of the trunk about 1' thick, 

 deeply furrowed, the light brown surface broken into small thin scales. Wood light brown 

 faintly tinged with red, with thick hardly distinguishable sapwood of 55-65 layers of annual 

 growth; employed in the manufacture of paper pulp, and under the name of white wood 

 largely used in wooden ware, cheap furniture, the panels of carriages, and for the inner 

 soles of shoes. 



Distribution. Rich often moist soil, formerly often in nearly pure forests; northern New 

 Brunswick to the eastern shores of Lake Superior, the southern shores of Lake Winnipeg 

 and the valley of the Assiniboine River, and southward to Pennsylvania, Ohio, eastern 

 Kentucky, southern Michigan, Indiana and Illinois, eastern Nebraska and northern Mis- 

 souri. 



Often cultivated as a shade and ornamental tree in the northeastern states, and occa- 

 sionally in Europe. 



2. Tilia nuda Sarg. 



Leaves thin, ovate, abruptly pointed at apex, obliquely truncate or unsymmetrically 

 cordate at base, and coarsely serrate with long slender straight or slightly curved conspic- 

 uously glandular teeth, as they unfold, dark red and sparingly pubescent on the midrib 

 and veins, glabrous at the end of a few days, without or rarely with small axillary tufts, 

 dark green on the upper surface, pale yellow-green or glaucous (var. glaucescens Sarg.) 

 on the lower surface, 4'-4f long and 2^'-3^' wide; petioles slender, glabrous, 2'-2|' in 

 length. Flowers opening early in June, about f ' long, on hoary-tomentose pedicels, in 

 broad usually 10 or 12, sometimes 30 or 40-flowered long-branched glabrous cymes; 

 peduncle glabrous, the free portion ^'-1 \' in length, its bract oblong, often slightly falcate, 

 cuneate or rounded at base, rounded at apex, glabrous, 3' 4' long, a'-li' wide, decurrent 

 nearly to the base of the peduncle; sepals acute, rusty-tomentose on the outer surface, gla- 

 brous on the inner surface; petals oblong-ovate, narrowed at the rounded apex; staminodia 



