414 TILIACEAE. [Vor. II. 
About 12 species, natives of the north temperate zone, 1 in the mountains of Mexico. 
Leaves glabrous or nearly so on both surfaces, 1. ZT. Americana. 
Leaves glabrous above, pubescent beneath. 2. T. pubescens. 
Leaves glabrous above, silvery-white beneath. 3. T. heterophylla. 
J 1. Tilia Americana I. Bass-wood. Am- 
ar ae eae 
erican Linden. White-wood. (Fig. 2411.) 
Tilia Americana I. Sp. Pl. 514. 1753. 
T. glabra Vent. Mem. Acad. Paris, 4:9. p/.2. 1802. 
Tilia Canadensis Michx. Fl. Bor. Am. 2: 306. 1803. 
A large forest tree, 60°-125° high, with spread- 
ing branches; trunk 2°-5° in diameter. Leaves 
obliquely ovate, cordate or sometimes truncate at 
the base, 2/-5’ wide, coriaceous, glabrous on 
both sides, or with some pubescence on the veins 
of the lower surface, sharply serrate with glandu- 
lar teeth, abruptly acuminate or acute; petioles 
1/-2’ long; floral bract 2’-4’ long, often narrowed 
at the base, strongly veined; cymes drooping, 6- 
20-flowered; flowers 5’’-7’’ broad, fragrant; petals 
yellowish-white, crenate, slightly longer than the 
pubescent sepals; scales similar to the petals, but 
smaller; fruit globose-ovoid, 4’/-5’’ in diameter. 
In rich woods and along river-bottoms, New Bruns- 
wick to Georgia, especially along the mountains, west 
to Manitoba, Nebraskaand Texas. Wood soft, weak, 
light brown or reddish; weight per cubic foot 28 lbs. 
Used for cabinet work and for paper pulp. Called 
also Whistle-wood. May-June. 
2. Tilia pubéscens Ait. Southern Bass- 
wood or White-wood. (Fig. 2412.) 
Tilia pubescens Ait. Hort. Kew. 2: 229. 17809. 
Tilia Americana var. pubescens Loud. Arb. Brit. 1: 374. 
1838. 
Tilia Americana var. Walteri Wood, Bot. & Flor. 64. 1870. 
A small tree, 40°-50° high, with a trunk 1° in diam- 
eter. Leaves generally smaller than those of 7. mer- 
icana, glabrous above, pubescent, or sometimes densely 
woolly beneath; floral bracts commonly broader and 
shorter, narrowed or rounded at the base; fruit glo- 
bose, 2%’/-3/’ in diameter. 
In moist woods, Long Island to Florida, west to Texas, 
mostly along the coast. Wood as in 7. Americana, but 
lighter in weight, about 24 lbs. to the cubic foot. 
May-June. 
3. Tilia heterophylla Vent. White Bass- 
wood. Bee-tree. (Fig. 2413.) 
Tilia heterophylla Vent. Mem. Acad. Paris, 4:16. fl. 5. 
1802. 
Tilia alba Michx. f. Hist. Arb. Am. 3:315. p/. 2. 1813. 
Not Waldst. & Kitt. 
Tilia heterophylla var. alba Wood. Bot. & Flor. 64. 1870. 
A forest tree, 45°-70° high, with a trunk 1144°-3%° 
in diameter. Leaves larger than in either of the pre- 
ceding species (often 6’—S’ long), inequilateral, cor- 
date or truncate, glabrous and dark green above, white 
beneath with a fine downy pubescence, acute or acu- 
minate; floral bracts 3/-5’ long, narrowed at the base; 
flowers slightly larger and often fewer than those of 
T. Americana; fruit globose, about 5’’ in diameter. 
In woods, mountains of southern Pennsylvania, south 
along the Alleghanies and Blue Ridge to Florida and Ala- 
bama, west to central Illinois, Kentucky and Tennessee. 
Also called Wahoo. Wood weak, light brown; weight per 
cubic foot 261bs. June-July. 
The European Linden, or Lime Tree, Tilia Europaéa 1., is planted as an ornamental tree in 
parks and on lawns. It may be distinguished from any of our species by the absence of scales at the 
base of the petals. Its name, Lin, was the origin of the family name of Linnaeus. 
