SOME TREES YOU MAY KNOW. 277 



Plums (Prunus americana) and Cherries (Primus scrotina) all 

 grown more or less, and worthy of more general planting. 



2. Leaves more or less lobed. 



a. Bark thick and rough, brownish Oaks (Quercus) 



We have half a dozen or more native kinds in the state, all of 

 which are grown more or less, including the Bur Oak {Quercus 

 macrocarpa), with large leaves with rounded lobes; Red Oak, 

 {Quercus rubra), with large leaves with pointed lobes; and also 

 English Oak {Quercus robur) , with small leaves with rounded 

 lobes. 

 h. Bark separating in thick flakes, gray or whitish, 



Sycamores {Platanus occidentalis) 



c. Bark separating in thin sheets, gray or whitish. .Birches {Betula) 



Several species are grown, as the White Birch {Betula populi- 



folia), with white bark, and Cut-leaved Birch, with the leaves cut 



into narrow lobes. 



Here may be mentioned the various kinds of Mulberries {Morus) 



3. Leaves compound, that is a row of leaflets on each side of the 



midrib. 



a. Leaflets large, 5 to 15; pith solid Hickories {Hicoria) 



The several species are best distinguished by their nuts, as the 

 Shellbark Hickory {Hicoria ovata), with small edible nuts; Big 

 Hickory {Hicoria laciniosa), Math large edible nuts; Pig-nut Hick- 

 ory {Hicoria glabra), with small bitter nuts. 

 6. Leaflets large, 9 to 23: pith in transverse plates, 



Walnuts {Juglans) 

 There are two species, Black Walnuts {Juglans nigra), with 

 round nuts, and white Walnuts ("Butternuts") {Juglans cinerea) 

 with long nuts. 



c. Leaflets large, very many: twigs very stout; seed pods 6 to 10 

 inches long, and 2 inches wide, like big beans, 



Kentucky Coffee Tree {Gymnocladus dioica) 



d. Leaflets large, vei-y many: twigs very stout; seed pods small, 1 



to 2 inches long, thin Ailanthus (Ailanthus glandulosa) 



€. Leaflets medium sized, 7 to 9:. twigs slender; seed pods 3 to 

 4 inches long, narrow; tree thorny. 



Black Locust {Robinia pseudacacia) 

 /. Leaflets small, very many: twigs slender; seed pods 6 to 12 

 inches long, narrow; tree very thorny, 



Honey Locust {Qleditsia triacanthos) 



