1913] The Ottawa Naturalist. 39 



The Red or Swamp Maple, .1. rubrum, is somewhal allied to 

 the White Maple. It is also a soft maple and a rapid grower. 

 It does not grow to such a large size, and its branches are more 

 upright. It is in its native home in the f< rest that it appears in 

 all its glory and sheds its characteristic halo of beauty over all 

 the autumn woods. The Red Maple is appropriately named. 

 Its first blossoms flush to a bright red 1 efore the leaves appear, 

 the keys ripen scarlet in June, its leaves swing on scarlet stems 

 all summer, and its young twigs are reddish, and in autumn its 

 leaves turn a magnificent scarlet before they fall, and there is 

 a characteristic tinge of red in the bark in the winter. 



The Striped Maple, A. Pennsylvanicum, and the Mountain 

 Maple, .4. spicatum, hardly attain to the dignity of trees. 



The Box Elder or Manitoba Maple, Acer negundo or 

 A', aceroides, comes last in value among the maples as a shade 

 tree. It grows very rapidly, and tor tins reason it may be grown 

 as a protection for more valuable trees. The trunk divides into 

 several wide-spreading branches and numerous long straggling 

 branchlets. This is the only maple that has compound leaves. 

 These leaves have no beauty in the fall. And the pendulous 

 bunches of keys remaining on the tree all winter are not attract- 

 ive; and sooner or later its thicket of branchlets so cut off the 

 light that the whole tree has to be cut down. 



Sapindace.-e. 

 The well-known Horse Chestnut, JEsculus hippocaslanum, 

 is a handsome tree in summer, but in the winter is homely. It is 

 recognized by its large terminal buds, which are covered" with a 

 resinous gum. The branches have the double compound curve, 

 and the terminal twigs point upwards. This tree is much more 

 common in Toronto and other western cities. We might well 

 have more of them here. 



TlLIACE.E. 



The Linden, or Basswood, tree may be considered famous 

 in that it gave its name to the father of the great botanist, 

 Linneus (or in its Swedish form, Linne). 



Our species, Tilia americana, deserves to be planted more 

 frequently in the city than it is. It has a fairly characteristic 

 outline. The large trunk gradually tapers as it gives off numerous 

 side branches with a double compound curve. The trunk is not 

 lost until fully two-thirds way up in the oval-columnal outline 

 of branches. The leaves are larger and unequal-sided. The 

 flowers come out in June and are verv sweet-scented, and attract 

 large numbers of honev bees. 



