DICOTYLEDONOUS PLANTS 147 
corymbs or panicles. Sepals 5. Petals 5 or fewer or wanting. 
Stamens many, inserted on a swollen disk. Ovary 2-10-celled, 
with 1 or more ovules in each cell. Fruit 1-12-celled, dry or 
berry-like. 
TILIA, Tourn. 
Trees with rough gray bark on the trunk; bark of the twigs | 
smooth, lead-colored; wood white and soft. Leaves cordate, 
usually inequilateral. Cymes axillary or terminal, peduncles 
adnate to a large, prominently veined leaf-like bract. Flowers 
yellowish-white. Sepals 5. Petals 5. Stamens many, in 5 
groups. Ovary 5-celled, with 2 ovules in each cell; stigma 
5-lobed. Capsule 1-celled, 1—-2-seeded ; peduncle and bract 
deciduous with the matured fruit, the bract forming a wing 
by which the fruit is often carried to a considerable distance.* 
1. T. pubescens, Ait. Basswoop. A tree of medium size; leaves 
ovate, acuminate at the apex, obtuse and oblique at the base, 
mucronate-serrate, woolly on both sides or smooth above when old ; 
flowers fragrant, florai bract 2-3 in. long, usually rounded at the 
base. Fruit globose, about } in. in diameter. In rich woods. Bees 
gather large quantities of nectar from the flowers.* 
2. T. americana, L. Basswoop, WuHITEwoop. A large tree, 
sometimes 125 ft. high. Leaves larger than in No. 1 (2-5 in. wide), 
often unsymmetrical, heart-shaped or truncate at the base, sharply 
toothed. Floral bract often narrowed at the base. Fruit somewhat 
ovoid, 4 in. or more in diameter. Common in rich woods; occurs 
farther N. than No. 1. 
3. T. europea, L. European Linpen. A _ good-sized tree. 
Leaves roundish, obliquely heart-shaped, abruptly taper-pointed, 
finely toothed. Flowers differing from Nos. 1 and 2 in the absence 
of petal-like scales at the bases of the stamens. Cultivated from 
Europe. 
64. MALVACEZ. Matitow FaAmILy. 
Herbs or shrubs, with simple, alternate, palmately-veined 
leaves, with stipules. Flowers regular. Sepals 5, often 
surrounded by an involucre at the base. Petals 5. Stamens 
numerous, monadelphous. Pistils several, more or less dis- 
tinct. Fruit a several-celled capsule or a collection of 1-seeded 
carpels. © 
