Plants and their ways in South Africa . Fig. zxz.—Encephalartos villosus^^imm, (Photograph by P. S. Laney, Esq.) Encephalartos.—Stem cylindrical; pinn» of the leaves withoutmidrib, finely parallel veined. Santgeria.—Stem short, swollen ; pinnae midribbed with forked veins. ^ Staminate and pistillate flowers on the same plant or on differentplants. Classification of Plants 239 EncephalartOS {Zamia).—The stamen-bearing cones arelong and slender, and the scales are covered on the undersurface with microsporangia. These are arranged in sori,reminding us of the ferns. The ovule-bearing cones aresho
Plants and their ways in South Africa . Fig. zxz.—Encephalartos villosus^^imm, (Photograph by P. S. Laney, Esq.) Encephalartos.—Stem cylindrical; pinn» of the leaves withoutmidrib, finely parallel veined. Santgeria.—Stem short, swollen ; pinnae midribbed with forked veins. ^ Staminate and pistillate flowers on the same plant or on differentplants. Classification of Plants 239 EncephalartOS {Zamia).—The stamen-bearing cones arelong and slender, and the scales are covered on the undersurface with microsporangia. These are arranged in sori,reminding us of the ferns. The ovule-bearing cones areshorter and thicker, each scale bearing a pair of ovules. Thethick unbranched trunk, rough with the bases of fallen leaves,has a palm-like appearance. There are twelve species found in the Eastern Province and are found along ledges in ravines, and extend as far west as theKroome River. They form quite a special feature of the Fish River Bush,and extend from near the sea-level to an altitude of 5000 Fig. 213.—Young plant of Encephalartos villosus, Lehni. Showing apo-geotropic breathing roots. By kindness of Miss Pegler. (Photograph by P. , Esq.) Stangeria is a curious plant, with a few leaves crowningits turnip-shaped trunk. The feathered venation of the leavesdistinguishes them from those of EncephalartOS. It dwellsin Natal, and comes as far south as Lower Albany. 240 Plants and their Ways in South Africa The Cycadaceae come of a very ancient lineage, for theirfossil forms are found in older rock formations than those ofany of their living Gymnosperm relatives. A xerophytic character of these plants is the well-developedunderground stem system by which vegetative reproduction
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectplants, bookyear1915
