0.78] 



CLASSIFICATION AND DESCRIPTION 



137 



Shrub (var. pumila) to large tree, 6 to 50 ft. high ; throughout ; 

 rare north, abundant south. Sometimes cultivated. The branches 

 are numerous, slender, horizontal, giving the tree a wide-spreading, 

 dense top. 



2. C61tis Mississippi6nsis, Bosc. Leaves 

 almost entire, with a very long, tapering point, 

 a rounded and mostly oblique base, thin and 

 smooth. Fruit smaller than that of the pre- 

 ceding species. A small tree with rough, 

 warty bark. Illinois and southward. 



0. Mississipptensis. 



GENUS 77. MACLtTRA. 



Trees or shrubs with milky juice and simple, alternate, 

 entire, deciduous leaves, generally having a sharp spine 

 by the side of the bud in the axils. Flowers inconspicu- 

 ous j in summer. Fruit large, glob- 

 ular, orange-like in appearance. 



Madura aurantiaca, Nutt. (OSAGE 

 ORANGE. Bow- WOOD.) Leaves rather 

 thick, ovate to ovate-oblong, almost en- 

 tire, smooth and shining above, strong- 

 veined and paler beneath, 4 in. long by 2 

 in. wide ; spines simple, about 1 in. long. 

 Fruit as large as an orange, golden-yellow 

 when ripe. A medium-sized tree, 20 to 

 50 ft. high; native west of the Missis- 

 sippi. Extensively cultivated for hedges, 

 and also for ornament, throughout. 



GENUS 78. MORTIS. 



Trees with milky juice and alternate, deciduous, ex- 

 stipulate, broad, heart-shaped, usually rough leaves. 

 Flowers inconspicuous; in spring. Fruit blackberry- 

 like in shape and size; in summer. 



* Leaves rough ; fruit dark-colored : . .1. 



* Leaves smooth and shining ; fruit white to black 2. 



