Complimentary 
NEW SERIES VOL. VIII 
NO. 15 
ARNOLD ARBORETUM 
HARVARD UNIVERSITY 
BULLETIN 
OF 
POPULAR INFORMATION 
JAMAICA PLAIN, MASS. JULY 14. 1922 
Linden Trees. At midsummer the Lindens scent the air with their 
fragrant flowers from which bees gather their richest harvest. Tilia, 
the name of the Linden, is one of the widely and generally distributed 
genera of the trees of the northern hemisphere; it is absent, however, 
from western North America, and no Linden has yet been found in 
the forests which cover the Himalayas. Eastern North America with 
fifteen species is richer in Lindens than all the rest of the world, and 
in eastern North America Lindens are found from New Brunswick 
westward to Lake Winnipeg and southward to northern Florida and 
northeastern Mexico. To the two species which grow in Canada an- 
other is added in New York and Pennsylvania; southward in the for- 
ests which cover the high slopes of the Appalachian Mountains and in 
those of the coast region of the Carolinas and Georgia the number in- 
creases. Lindens are common in all the Gulf states, and abound in 
eastern and southern Texas where five species and several varieties 
occur and where Lindens grow by the scanty streams, and under the 
bluffs of the Edwards Plateau, a region in which Lindens could hardly 
be expected to flourish. 
The ability of the southern species to grow in New England has still 
to be demonstrated in the Arboretum, and only three northern and one 
southern Appalachian species are established here. These are Tilia 
glabra, more often called Tilia americana, T. neglecta, T. heterophylla 
var. Michauxii, and T. monticola. Of these Tilia glabra, which was 
once abundant in northern woods where it grew to a great size, is the 
only American species which has been often planted as a shade tree in 
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