File:The tree book - A popular guide to a knowledge of the trees of North America and to their uses and cultivation (1920) (14779909471).jpg

Identifier: treebookpopularg1920roge (find matches)
Title: The tree book : A popular guide to a knowledge of the trees of North America and to their uses and cultivation
Year: 1920 (1920s)
Authors: Rogers, Julia Ellen, b. 1866
Subjects: Trees
Publisher: New York : Doubleday, Page
Contributing Library: Harold B. Lee Library
Digitizing Sponsor: Brigham Young University

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ning, then black. It is from the bark of this tree that the drug, Cascara Sagrada,is obtained. The species and its varieties are planted in shrub-beries for their pretty foliage and bright fruits. Forms withdeciduous leaves are hardy in Massachusetts gardens. The Evergreen Buckthorn (Rhamnus crocea, Nutt.) growson the western slopes of the Sierra Nevada Mountains in California,south of the upper valley of the Sacramento River. It is moreoften a shrub than a tree, and commonly forms thickets onthe shaded sides of ravines. Its leaves are almost round andspiny-toothed, glossy green above and coppery beneath. Itsscarlet, pea-like fruits are sweet and edible. This buckthorn isfrequently seen in gardens in California. It is not hardy in theNorth, but deserves introduction into the Southern and MiddleStates. Numerous related genera belonging to the buckthorn familyare found in the Southern States and in California. Among themare trees of unusual interest which deserve brief mention here. 390
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Copyright, 1905. bv Doubleday, Page & Company SCARLET HAW (Crat&gus Arnoldiana) branch taken from type species in the Arnold Arboretum. Boston. The Buckthorns Some are remarkable for the hardness of their wood, others fortheir flowers. The Red Ironwood (Reynosia septentrionalis, Urb.), calledalso Darling plum, grows wild in southern Florida, and iscultivated to some extent for its fruit. It is a pretty little tree,clothing its heavy, hard wood with bright red bark. The purpleor black plums are sweet and of pleasant flavour. The Bluewood, or Logwood (Condalia obovata, Hook.),grows in thickets in the valley of the Rio Grande River in Texasand is especially esteemed as fuel. It burns with an unusuallyfervent heat. Its leaves are dry and leathery, obovate, entire,and scarcely an inch long. Its twigs end in sharp thorns. Thesweet berries ripen, turning blue, then black, during the longsummer. The wood is red, but yields a bluish dye. It is anentirely different tree from the logwood

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