156 TREES GROWING IN RICH SOIL. 



T. heterophylla, {Plate LXXVII), white basswood, linden bee- 

 tree or Wahoo, differs from the foregoing species in having 

 larger leaves which are covered underneath with a silvery white 

 down and through which show purple ribs. This delicate fea- 

 ture adds much to the beauty of the leaf. The height of the tree 

 is from about fifty to sixty feet. It inhabits the mountains of 

 Pennsylvania and occurs southward to Florida and westward to 

 Illinois. Recently it has been found in Central New York. On 

 the slopes of the mountains in Tennessee it is seen in a great 

 state of development. It is always a very beautiful tree. 

 Northward it is unfortunately rare even in cultivation. 



T. pubescens is again distinguished, by its comparatively small 

 leaf and its thinness. Much of the pubescence which is con- 

 spicuous along the ribs and in their angles is lost at maturity. 

 The bracts, to which are attached the peduncles of the blos- 

 soms, are sessile, and they are most often rounded at the ex- 

 tremities. The tree is found growing in rich soil from Long 

 Island to Florida, and westward to Texas. 



T. Europaa, European linden, is commonly seen planted about 

 dwellings, and grows to a height of about thirty-five or forty 

 feet. There are varieties of it which are similar to both the 

 native small-leaved and large-leaved species. Their stamens, 

 however, are free from scales and the trees have pyramid- 

 shaped heads. 



WILD RED CHERRY. BIRD CHERRY. PIN CHERRY. 



PIGEON CHERRY. (Plate LX XVIII.) 



Prunus Pennsylvdnica. 



FAMILY SHAPE HEIGHT RANGE TIME OF BLOOM 



Plum. Hearty narrow or 20-40 /*<?<?/. Northward to Ga. and A/ril, May. 



rounded ; branches^ to Iowa and westward. Fruit : June % July, 

 horizontal. 



Bark : reddish brown and covered with enlarged orange-coloured dots, when 

 old inclined to peel about the trunk into thin, papery sheets. Stipules: early 

 falling. Leaves ; simple ; alternate, or growing in clusters of five with slender, 

 grooved petioles ; oval, with pointed apex and pointed or rounded base; finely 

 serrate ; netted-veined ; thin ; bright green; smooth and lustrous above; paler 



