. The Book of gardening; a handbook of horticulture. Gardening; Floriculture. 842 THE BOOK OF GARDENING. decorative purposes; it may be described as a P. dactjlifera, only of slenderer habit (Fig. 561). P. dactylifei-a (true Date Palm) grows very freely under greenhouse treatment, and can be used with success for indoor decoration when young; the leaves are pinnate, long, and of a deep green; the pinnse are linear- lanceolate, and stand out nearly straight : it reaches in its native country a height varying from looft. to 120ft. P. farinifera is another compact species of elegant stature, with
. The Book of gardening; a handbook of horticulture. Gardening; Floriculture. 842 THE BOOK OF GARDENING. decorative purposes; it may be described as a P. dactjlifera, only of slenderer habit (Fig. 561). P. dactylifei-a (true Date Palm) grows very freely under greenhouse treatment, and can be used with success for indoor decoration when young; the leaves are pinnate, long, and of a deep green; the pinnse are linear- lanceolate, and stand out nearly straight : it reaches in its native country a height varying from looft. to 120ft. P. farinifera is another compact species of elegant stature, with pinnate leaves varying from 3ft. to 4ft. long, and ovate acuminate pinnae 6in. long, the lower ones being transformed into stout spines. P. humilis is the smallest species of the genus, possessing bulbous stems only ift. long; the leaves vary from 2ft. to with conduplicate pinnules, the lower ones being often transformed cultivation ; the leaves are pinnate and spreading, with narrow pinnae reaching about 6in in length, the lower ones being transformed into sharp spines (Fig. 563). P. sylvestris possesses a great similarity to P. dactylife7'a, producing greyish- green leaves varying from 7ft. to 12ft. long, with a multitude of alternate and opposite pinn^, which often reach iSin. in length; it is one of the most robust Palms, and can be utilised for sub-tropical gardening during the whole of the summer (Fig. 564). Phytelephas.—A genus of compact plants, very ornamental in their young state, and thriving fairly well in a greenhouse throughout the summer, but requiring stove heat during the winter. Only two species seem to be cultivated at the present time. P. macrocarpa is well known for its fruits, which furnish a kind of ivory used for making numerous small ornaments. The Phytelephas are unarmed, and comparatively robust. The leaves. Fig. 563.—Phcenix rupicola. into short and sharp spines; it is very useful for decorative purposes ; there are also half- a-dozen vari
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