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PRACTICAL FORESTRY. 



B. lanugmosa, Pers. — Leaves oblong-obovate. Flowers in 

 clusters of six to eighteen. A tree sometimes forty feet high, 

 and not so spiny as some of the species. Missouri and south- 

 ward to Texas and eastward to Florida. A variety of this (B. 

 macrocarpa, Nutt.), has leaves less than an inch long. Fruit 

 edible, and quite large. 



B. lycioides, Gaertn. — Leaves quite smooth, obovate-oblong, 

 two to five inches long, often wliitish imdemeath when young. 

 A low shrub, but sometimes a tree twenty to thirty feet high. 

 Illinois to Texas, and eastward to Florida. 



B. euneata, Swartz. — Leaves quite variable in form ; very 

 long lanceolate or broadly obovate ; an inch to an inch-and-a- 

 half long, very thick and fleshy. A small tree twenty to thirty 

 feet high, but more commonly only a low shrub. Florida, 

 West Indies, Texas, and Mexico. 



BURSE RA — West India Birch, 



Tropical American trees, yielding a transparent green rosin, 

 readily dissolved in alcohol and occasionally used as a varnish. 

 Only one species found in the United States and this is the 



Bursea gummifera, Jacquin. — Leaves unequally pinnate, three 

 to five leaflets. Flowers small in axillary racemes. Fruit a 

 drupe the size of a small hazelnut. Seed a small white nut, each 

 containing one kernel. The Spanish name is Almicigo or 

 Mastic Tree. A large tree in Southern Florida and in the West 

 Indies. Wood soft and brittle. 



CALTPTRAXTHES, Swartz. 



A genus of small evergreen trees indigenous to the West 

 Indies and Brazil. Flowers very minute but numerous, usually 

 in axillary or terminal branching racemes. We have one 

 species : 



Calyptranthes Chrytraenlia. — Forked Calyptranthes. — Leaves 

 ovate or ovate-lanceolate, rather blunt-pointed, smooth above 

 but pubescent beneath. Flowers whitish, minute. Berry dry, 

 round ; one or two-seeded. Wood very hard, and in Jamaica 

 considered an excellent timber, but the tree does not grow to a 

 large size, and the stem is seldom more than a foot in diameter. 

 Found at Key West, Florida, and in the West Indies. 



CARPixus. — Blue Beech, Water Beech, 



TaU shrub or smaU tree, widely distributed in North America, 

 only one indigenous species. 



