828 Yearbook^ of Agriculture 1949 



32. FLAMBOYANT-TREE, Delonix regla (Bojer) Raf. (royal poinciana, peacock-flower; 

 Poinciana regia Bojer). Small tree with broad, widely spreading top, nearly evergreen but 

 leafless for a time in spring. Leaves finely divided, twice compound, 1 to 2 feet long, with 

 20 to 50 feathery forks, each with 30 to 70 oval leaflets l /\ to / 2 inch long, dark green. 

 Flowers large and very showy, 3 to 4 inches across, bright scarlet, in large clusters in 

 spring and summer. Pods large, 1 to 1 l /z feet long, flat, dark brown. Native of Madagascar. 

 A brilliantly flowered tropical ornamental very popular in Florida, where it is naturalized. 

 Planted also southern Texas and southern California. Zone 10. 



I. Deciduous, leaves borne singly (alternate), not divided into leaflets (simple), leaf 

 edges smooth, Nos. 33 and 34. 



33. TALLOWTREE, Sapium sebiferum (L. ) Roxb. (Chinese tallowtree; Triadica sebifera 

 (L. ) Small). Small spreading tree with poisonous milky juice. Leafstalks 1 to 2 inches 

 long. Leaf blades broadly oval or nearly round, 1 l /z to 3 inches long, long-pointed, with 

 smooth edges, light green, turning red or yellow in fall. Male and female flowers small, 

 greenish, in dense clusters 2 to 4 inches long. Fruiting capsules l /2 inch in diameter, with 

 3 white, oval, waxy seeds remaining attached. Native of China, where candles are made 

 from the waxy seed coats. Cultivated and naturalized in the South Atlantic and Gulf 

 States. Zone 7. 



34. RUSSIAN-OLIVE, Elaeagnus angustifolia L. (oleaster). Small tree or shrub, some- 

 times spiny, with irregular crown and silvery twigs and foliage. Leaves lance-shaped, 1 /a 

 to 3 inches long, blunt-pointed, with smooth margins, grayish green above, silvery scaly 

 beneath. Flowers silvery and pale yellow, small, % inch long, fragrant, in spring or 

 summer. Fruits oval, 3/8 inch long, yellow with silvery scales, sweet and mealy, 1 -seeded. 

 Native from southern Europe to western and central Asia. Planted as an ornamental for 

 its handsome silvery foliage and fragrant flowers nearly throughout temperate United 

 States and occasionally escapes from cultivation. Hardy in the far North and especially 

 adapted to drier regions, such as Great Plains and Rocky Mountains. Extensively used in 

 shelterbelts. Drought-resistant, tolerant of city smoke, and suited to a wide range of soils 

 from moist to sandy and alkaline. Zone 2. 



J. Deciduous, leaves borne singly (alternate), not divided into leaflets (simple), leaf 

 edges toothed but not lobed, Nos. 35 to 44. 



35. EUROPEAN BEECH, Fagus sylvatica L. (purple, cutleaf, and weeping European 

 beech are horticultural varieties). Medium-sized to large tree with symmetrical oval crown 

 and dense foliage. Bark smooth, gray. Leaves in 2 rows, 2 to 4 inches long, short-pointed, 

 minutely toothed, hairy when young, shiny dark green above and light green beneath, 

 turning reddish brown in fall. Flowers male and female, small, in early spring. Fruit a spiny 

 bur 1 inch long, with 2 or 3 triangular edible seeds ^4 inch long known as beechnuts. 

 Native from central and southern Europe to Crimea, an important hardwood forming 

 extensive forests. Planted in northeastern United States and in Pacific States. Zone 4. 



36. EUROPEAN LINDEN, XTilia europaea L. (common linden; T. cordataXplatyphyllos, 

 T. vulgaris Hayne) . Large tree with dense pyramidal crown. Leaves in 2 rows, heart-shaped, 

 2 to 4 inches long, short-pointed, the 2 sides unequal at base, sharply toothed, dark green 

 above, bright green beneath with tufts of hairs in angles of main veins. Flowers pale yellow, 

 l /4 inch long, in clusters on a strap-shaped greenish stalk in summer. Fruits nutlike, l /4 

 inch in diameter. A hybrid of two European species, littleleaf linden and bigleaf linden. 

 In the United States adapted to moist temperate regions, especially in the Northeast and 

 Pacific Northwest, as a shade tree tolerant of city conditions. The flowers are a good 

 source of honey. Zone 3. 



37. SILVER LINDEN, Tilut tomentosa Moench (white linden). Large tree with upright 

 branches and dense broad pyramidal crown. Twigs white hairy. Leaves in 2 rows, heart- 

 shaped and rounded, 2 to 5 inches long, long-pointed, sharply toothed, dark green and 

 slightly hairy above when young, beneath silvery white with a coat of woolly hairs. Flowers 

 pale yellow, % inch long, fragrant, in clusters on a strap-shaped greenish stalk in summer. 

 Fruits nutlike, YQ inch long, oval, minutely warty and slightly 5-angled. Native of south- 

 eastern Europe and western Asia. In the United States suited to moist temperate regions, 

 especially in the East, but planted also west to the Pacific States. Tolerant of city conditions 

 and resistant to heat and drought. Zone 4. 



38. ENGLISH ELM, Ulmus procera Salisb. ("C7. campestris" of authors in part). Large 

 tree with straight trunk, spreading and nearly horizontal branches, and oval crown. Bark 

 deeply fissured. Leaves in 2 rows, elliptical, 2 to 3 inches long, short-pointed, the 2 sides 

 unequal, doubly toothed, dark green and rough above, soft-hairy beneath. Flowers small, 



-> 



29. Panicled goldenrain-tree. 30. Chinaberry. 31. Silktree. 32. Flamboyant-tree. 33. 

 Tallowtree. 34. Russian-olive. 35. European beech. 36. European linden. 37. Sil- 

 ver linden. 



