Tài liệu Studies in ornamental trees and shrubs docx

\ [...]... difficulty in getting a good stand But seedlings are slow in reaching the flowering cause of this cuttings are commonly used stage and be- These should be taken in spring from ripened wood or at least from wood which is getting firm at the base Three or four inches is about the proper length and propagation is best affected in sand under glass The identification of our garden forms is no easv task, since... protection California, ing green Studies in Ornamental Trees and Shrubs 17 the earliest species introduced into England (where from frost is necessary) Presumably also grown in although no plants can now be located The pleasfoliage, suggestive of holly-leaves, may render it de- sirable 3 H, laurina R Br A gray rusty late, H eucahjptoides Meissn tall shrub, attaining in Australia to 30 ft and tree-like: branchlets... grown in California 1910] Hall: Studies in Ornamental 8 H suaveolens R Br Trees and Shrubs 19 H pectinata Colla A dense rounded shrub becoming 8 to 10 ft high in California: young shoots and foliage silky pubescent but glabrous at maturity: leaves 2 to 4 in long, about %6 in thick, cylindric, with a rigid spinelike tip, narrowly grooved on the upper side, occasionally entire but usually branched into... Hall: THE Studies in Ornamental BOTTLE-BRUSH GROUP Trees and Shrubs OF 21 ORNAMENTALS Bottle-brushes are eminently adapted to shrubbery and ornamental planting in California They are rapid growers, hardy, endure considerable drought and abuse, and many of them are among the most showy of our cultivated shrubs It has been found, however, that the best sorts are not the ones most generally grown and that... Fairchildii or yellow Leaves very obtuse, thick and leathery Flowers % in long, in terminal umbels, usually pure white Foliage uniformly green 5 P Tobira Foliage variegated with white 5 P Tobira variegatum Flowers % in long, in terminal panicles, greenish yellow 6 P viridiflorum 1910] Hall: Leaves acute, Flowers in Studies in Ornamental Trees and Shrubs 1 thin terminal clusters: leaves lanceolate or Young... Publications in Botany 4 H multilineata [VOL.4 Meissn A shrub or small tree resembling H laurina: leaves narrow and 6 to 8 in long, or broader and only 3 to 5 in long, striate with numerous parallel nerves: flower-clusters oblong, 1 to 3 in long, sessile in the leafaxils, carmine in the center, fading to pale pink at the tips of the styles: capsule ovoid-globular with a very short beak, about % in broad... applicable to this genus of shrubs, the flowers being arranged in dense cylindrical spikes 1910] Hall: Studies in Ornamental in which the protruding Trees and Shrubs 23 stamens correspond to the bristles of a brush the handle of which is represented by the woody stem "Chimney-sweep' is another suggestive appellation sometimes used Callistemons are favorites in California gardens and deserve to be even better... Hall: Studies in Ornamental Trees and Shrubs 5 is wanted, particularly if a light-green color is preferred P tenuifolium also may be trimmed into a narrow hedge, but is more twiggy, less leafy, and of a darker green color Both of these two last-mentioned take very kindly to pruning, making neat hedges generally superior to the much used privet and box For low hedges and for edgings the rambling, light-green... of the most showv and has entered «.' into several of the garden hybrids Although not so stiff and rangy as C rigidus, it requires severe pruning if a compact, densely flowered shrub is desired Seldom becomes more than 1910] Hall: Studies in Ornamental Trees and Shrubs 25 8 feet high in California but reaches 30 feet and a trunk diameter of 18 inches in Australia, where the hard and heavy wood is used... to 3 in long, narrow-obovate or oblong, obtuse, much narrowed to the short stout petiole, very leathery, dark green and shining above, the margins recurved: flowers in clusters terminating the branchlets: petals i/> in long including the recurved tips, nearly black: fruiting peduncle stout, recurved: mature capsule subglobose, % to I1/! in long, short-hairy, with very thick woody valves New Zealand . is leading to a demand for more information concerning the better sorts of ornamental shrubs and trees. The object of the present paper is to aid in supplying. variegatum. Flowers % in. long, in terminal panicles, greenish yellow 6. P. viridiflorum. 1910] Hall: Studies in Ornamental Trees and Shrubs. 1 Leaves acute, thin. Flowers