TMORE. N. 



Robinia, continued 



shrub borders. The Black Locust makes a beauti- 

 ful specimen tree when planted in rich loam. 



Robinia neo-mexicana. WESTKRN LOCUST. A small 

 tree or low shrub from the Rocky Mountains. Leavi-s 

 compound, with 15 to 21 leaflets, bluish green, turning 

 yellow in autumn. Flowers pale rose, borne in short 

 hispid racemes. Very showy in flower. 



R. pseudacacia. BLACK LOCUST. A tree with a com- 

 paratively narrow crown. Widely distributed in the 

 United States east of the Rocky Mountains. Leaves 

 compound, with 7 to 19 leaflets, bright green, turning 

 pale yellow in autumn. Flowers white, very fragrant, 

 borne in drooping racemes, expanding in May or June. 

 Has been largely planted as an ornamental. 



R. viscosa. CLAMMY LOCUST. A small tree with 

 clammy, viscid twigs. Native of the Mountains of 

 North and South Carolina. Leaves compound, with 13 

 to 21 leaflets, dark green, turning yellow in autumn. 

 Flowers pale rose, borne in dense glandular racemes. 

 Pods hispid. The flowers are very handsome. 



Salix fragilis. BRITTLE WILLOW. A rapid-growing 

 tree with brittle branches, clothed with lustrous brown 

 bark. Native of Europe and Asia. Leaves lanceolate, 

 relatively large, bright green on both surfaces. Has 

 been widely cultivated for hedges and for holding 

 banks of streams from erosion. 



S. tacana (5. rosmarini folia) . ROSEMARY WILLOW. 

 A shrub or small tree with a symmetrical round top 

 and long slender branches. Native of Europe. Leaves 

 narrow, bright green above, silvery white beneath. 



S. lucida. SHINING WILLOW. A large shrub or short- 

 trunked tree with a symmetrical round-topped crown. 

 Very abundant from New England to Alberta, south- 

 ward to Pennsylvania and Nebraska. Leaves large, 

 lanceolate, with long tapering points, dark green and 

 very lustrous. Bark orange-brown. 



S. nigra. BLACK WILLOW. A large tree usually with 

 several stems, forming an irregular open crown. 

 Grows throughout the United States. The largest 

 native American Willow. Leaves narrowly lanceolate, 

 bright green and lustrous, the margins serrate. Bark 

 reddish brown. 



Salix The Willow Trees 



Rapid-growing hardy trees thriving in any moist 

 soil. The Willows are valuable and interesting sub- 

 jects, both on account of their graceful aspect, 

 showy catkins and bright bark. The Babylonian 

 Weeping Willow is everywhere associated with 

 waterside planting, and is without doubt one of the 

 most remarkable of trees. Wonderful effects may 

 be obtained by grouping or massing the bright- 

 barked varieties, especially when they are con- 

 trasted against evergreens or other strong back- 

 grounds. Other species will be found under " De- 

 ciduous Shrubs." 



Salix alba (S. revolts). WHITE WILLOW. A large 

 tree with yellowish brown bark. Native of Europe. 

 Leaves broadly lanceolate, silvery gray, silky on both 

 surfaces, the margins serrate. Often planted for the 

 silvery aspect of its foliage. 



S. amygdaloides. PEACH- LEAVED WILLOW. A tree 

 with reddish brown bark and ascending branches. 

 Distributed from New York to the Rocky Mountains, 

 and from Ohio to Texas. Leaves lanceolate, the mar- 

 gins serrate, light green and lustrous, glaucous beneath. 



S. babylonica. WEEPING WILLOW. A large tree with 

 slender pendent branches. Native of Asia. Leaves 

 narrow, tapering to a long point, bright green, the 

 margins serrate. A very picturesque tree, universally 

 known and cultivated for several centuries in the Old 

 World. 



S. babylonica annularis. RING - LEAVED WILLOW. A 

 form of the last with curiously curled or twisted leaves. 

 An interesting tree, attracting attention wherever seen. 



S. babylonica dolorosa. WISCONSIN WEEPING WIL- 

 LOW. A very hardy variety, withstanding the winters 

 of the far North. The leaves are whitened on the lower 

 surface. 



S. caprea. GOAT, OR PUSSY WILLOW. A small tree 

 with upright or ascending branches. Native of Europe 

 and Asia. Leaves relatively large and broad, green 

 and rugose above, whitened beneath. Catkins very 

 numerous, appearing in early spring before the leaves 

 appear. Very handsome in flower and greatly es- 

 teemed by reason of its extreme earliness. Very many 

 of us can associate sweet memories with the Pussy 

 Willow. 



S. caprea pendnla. KILMARNOCK WEEPING WILLOW. 

 A form with drooping branches grafted on an upright 

 straight stem. Forms an umbrella -like canopy, the 

 branches eventually sweeping the ground. 



S. elegantissima. THURLOW'S WEEPING WILLOW. 

 Similar to 5". babylonica, but of more spreading habit 

 and of greater hardiness. Native of Japan. Branches 

 long and pendulous, clothed with yellow-green bark. 

 A large tree with a massive, symmetrical crown. 





Rhus cotinus (see page 38) 



S. pentandra. BAY- OR LAUREL-LEAVED WILLOW. A 

 small tree or large shrub of compact habit. Native of 

 Europe and Asia. Leaves very large, ovate-lanceolate 

 or elliptic, dark green and shining, fragrant when 

 bruised, the odor resembling that of the Bay Tree. One 

 of the best of the Willows for ornamental planting and 

 foliage effects. Bark light chestnut-brown. 



S. purpurea. PURPLE OSIER. A shrub or small tree 

 with long slender branches. Native of Europe. Leaves 

 oblanceolate, the margins shallowly serrate, of a rich 

 green color. Bark rich shining purple, somewhat glau- 

 cous. Much esteemed for basketry. 



S. vitellina. YELLOW WILLOW. A large tree with 

 bright yellow bark. Native of Europe. Leaves lanceo- 

 late, silky when young, bright green and smooth on 

 the upper surface at maturity, glaucous beneath. The 

 conspicuous yellow color of the bark is very attractive 

 in winter, especially when contrasted with evergreens 

 or masses of white- or red-barked trees. 



S. vitellina aurea. GOLD BARKED WILLOW. Bark of 

 the branches golden yellow, especially intense in color 

 in the spring, before the leaves appear. 



S. vitellina britzensis. BRONZE-BARKED WILLOW. 

 Bark of the branches red or bronze in early spring. 



39 



