The tree book : A popular guide to a knowledge of the trees of North America and to their uses and cultivation . , but future inves-tigations may still further divide the group. They are trees ofconsiderable value for shade and ornamental planting. Besidethe two natives, three exotic species are in cultivation in the south,and a hardy Japanese species farther north. Of the former, oneis from South Africa, one from the Mediterranean basin, and thethird from China and Japan. Hackberry, Nettle Tree, Sugar Berry {Celtis occidentalis,Linn.)—Tree, 50 to 125 feet, with slender trunk and round head,of
The tree book : A popular guide to a knowledge of the trees of North America and to their uses and cultivation . , but future inves-tigations may still further divide the group. They are trees ofconsiderable value for shade and ornamental planting. Besidethe two natives, three exotic species are in cultivation in the south,and a hardy Japanese species farther north. Of the former, oneis from South Africa, one from the Mediterranean basin, and thethird from China and Japan. Hackberry, Nettle Tree, Sugar Berry {Celtis occidentalis,Linn.)—Tree, 50 to 125 feet, with slender trunk and round head,of very slender, bushy twigs and pendulous branches. Bark lightbrown or pale grey, broken into thick warts or scales by deep fur*rows; branches often corrugated and warty. Wood light yellowlheavy, soft, coarse, weak. Buds axillary, never terminal; acute,ovate, small. Leaves simple, alternate, ovate, 2\ to 4 inches long,often fulcate, oblique at base, serrate above widest part, entirebelow it; thin, deep green, with downy lining; 3-nerved, fromslim petiole; autumn colour yellow. Flowers, May, monoecious, 236. THE SLIPPERY ELM (Ulmus fulva) Note the bud at the tip of the upper twig. Its scales are coated with tawny hairs. The obovate or circular samaras arfripe in May. They are hairy only on the seed body; the wing is smooth. The belated buds produce leafy shoots. The leavesare large and very harsh when crumpled or stroked with the finger. They have the characteristic shape, straight ribs and saw-toothed margin of all elms. The bark is reddish brown and cleft into narrow, loose flakes by shallow fissures
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttrees, bookyear1920
