. Botany for agricultural students . Botany. BIRCH FAMILY 475 the Southern States, and some other species occur in certain parts of the United States. The nuts are rich in oil, which is expressed and used as food and in painting. The nuts are common on the market and are of considerable importance as food. The wood of the White and Black Walnut is much used for furniture and cab- inet work. The wood of the Black Walnut is probably the most valuable wood of the North American forest. It is a durable wood, takes a fine polish, and is much sought for furniture, gun- stocks, and for cabinet work.
. Botany for agricultural students . Botany. BIRCH FAMILY 475 the Southern States, and some other species occur in certain parts of the United States. The nuts are rich in oil, which is expressed and used as food and in painting. The nuts are common on the market and are of considerable importance as food. The wood of the White and Black Walnut is much used for furniture and cab- inet work. The wood of the Black Walnut is probably the most valuable wood of the North American forest. It is a durable wood, takes a fine polish, and is much sought for furniture, gun- stocks, and for cabinet work. There are a number of species of Hickories, and the Pecans and several other species bear nuts having considerable value for food. Hickory wood is very tough, and on account of its strength, elasticity, and lightness, it is the best wood for spokes of buggy and wagon wheels and for ax handles. It is also the best wood for fuel. Birch Family (Betulaceae). — To this family belong the Birches, Hazelnuts, Iron- woods, and Alders. They are trees or shrubs and, except in rare cases, are monoecious with the staminate flowers borne in catkins, and the pistillate flowers borne in clusters, in spikes, or scaly catkins {Fig. 417). The fruit is a one-seeded nut, which in the Hazel is of some value for food. The Birches, of which there are many species, are the most important genera in this family. They are much used for shade and ornamental trees, and the wood is used for furniture, barrel hoops, shoe pegs,. Fig. 417. — The flowers and fruit of the Cherry Birch. At the left, above, a flowering branchlet bearing two stam- inate catkins at the left and one pis- tillate catkin at the right (X2); at the right, above, a pistillate flower and just below a staminate flower; at the left, below, a pistillate catkin in fruit and at the right, below, a single fruit. After Bums and Please note that these images are extracted from scanned page images that may have been digitally enhanced for
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1919
