CHAP. XVIII. TILIA CER. TI‘LiA. 375 
f:T. 
situations they are twice that size. The flowers, which resemble 
those of the common American species, appear in June, and they 
vary in the same proportion as the leaves. Seeds of this variety 
were brought to England by Catesby in 1726 ; but it does not appear 
to have been much cultivated. There isa tree of it in the arboretum 
at Kew, one in the London Horticultural Society’s Garden, and one 
at Messrs. Loddiges’s ; and it may be found in a few of the principal 
nurseries. In New York, the price is 50 cents a plant. 
a. 4 pubéscens leptophijlla. The thin-leaved pubescent American Lime 
Tree. 
Synonymes. T. pubéscens leptoph¥lla Vent. ; T. mississippénsis Desf. 
Description. This variety is described by Ventenat as having very thin leaves, with 
only a few fine serratures. De Candolle doubts whether it may not prove a distinct 
ecies. There is a plant bearing this name in the garden of the London Horticultural 
ciety, which closely resembles T. a. pubéscens ; and, if this be correctly named, we 
should have no doubt of its being nothing more than a variety of that race. 
¥ T. a. 5. heterophilla. The various-leaved American Lime Tree. 
Synonymes. T. heterophflla Vent., Dec.; T. Alba Michzx.; the White Lime. 
ngravings. Vent. Diss., t.5.; Michx, Arb., 3. t.2.; and our plate in Vol. II. 
Description. Petals each with a scale at the base inside. Leaves 
ovate, downy beneath, sometimes cordate at the base, sometimes 
obliquely or equally truncate. Fruit globose, with 5 ribs. (Don’s 
Mill. i. p. 553.) According to Michaux, this tree rarely exceeds the 
height of 40 ft. in its native habitats; and, according to the Nouveau 
Du Hamel, it does not exceed the height of 20 ft. in France, though it 
has been introduced into that country upwards of 70 years. The 
young branches of this variety are covered with a smooth silver-grey 
bark ; by which, and by their thickness, rough surface, and the large 
size of their buds, the tree is easily recognised in winter. The leaves 
are larger than those of any other variety, either American or 
European ; obliquely heart-shaped and pointed like those of all the 
other American varieties ; of a dark green on the upper surface, and 
whitish beneath ; with small reddish tufts of hairs at the intersections 
of the principal nerves. The flowers appear, in America, in June ; 
and, as well as the floral leaf, are larger than those of any other lime 
tree. The petals are larger and whiter, and have an agreeable odour. 
The seeds are round, or, rather, oval, and downy. There is a tree 
of this variety in the London Horticultural Society’s Garden, which, 
if correctly named, will prove it, as we think, to be only a variety of 
7. americana, more nearly approaching 7’. a. laxiflora than 7. a. 
pubéscens. 
Geography, History, §c. Ta. heterophylla, or the white lime, 
as it is called in America, is abundant in Maryland, Delaware, and 
the western states. It does not grow, like the common species (7°. 
americana), in elevated places, nor amidst the trees of the forests, but 
is almost always found on the banks of rivers. It is particularly 
observed on those of the Susquehanna, the Ohio, and the streams 
which flow into them ; but it rarely exceeds 40 ft. in height, with a 
trunk of from 12in. to 18 in, in diameter. The wood is white and 
tender, and is seldom applied to any use in the arts. It is remark- 
able, that, although this tree was known in France in the time of Du 
Hamel, in 1755, it should not have been introduced into England till 
1811. We are not aware of any plants of it, except those in the 
garden of the London Horticultural Society, which have not been 
planted above 8 or 10 years. Like all the other American varieties, 
it may be considered as highly ornamental, and well deserving a place 
in collections, where the climate is not much more severe than that 
of London, or where, if the cold is greater in winter, the heat is pro- 
portionately greater in summer, and is sufficient to give such a degree 
