. An encyclopædia of gardening; comprising the theory and practice of horticulture, floriculture, arboriculture, and landscape-gardening, including all the latest improvements; a general history of gardening in all countries; and a statistical view of its present state, with suggestions for its future progress, in the British Isles. Gardening. 202 SCIENCE OF GARDENING. Part penetrated by their own vegetating power. But the fact is, that they are merely covered by the addi- tional layers of wood that have been formed since the fibres first insinuated themselves into the bark. 942. The Cusc
. An encyclopædia of gardening; comprising the theory and practice of horticulture, floriculture, arboriculture, and landscape-gardening, including all the latest improvements; a general history of gardening in all countries; and a statistical view of its present state, with suggestions for its future progress, in the British Isles. Gardening. 202 SCIENCE OF GARDENING. Part penetrated by their own vegetating power. But the fact is, that they are merely covered by the addi- tional layers of wood that have been formed since the fibres first insinuated themselves into the bark. 942. The Cuscuta europcea, or Dodder {fig. 68.), though it is to be accounted a truly parasitical plant in the issue, is yet not originally so. For the seed of this plant when it has fallen to the ground takes root originally by sending down its radicle into the soil and elevating its stem into the air. It is not yet, therefore, a parasitical plant. But the stem which is now elevated above the surface lays hold of the first plant it meets with, though it is par- ticularly partial to hops and nettles, and twines itself around it, attaching itself by means of little parasitical roots at the points of contact, and finally detaching itself from the soil altogether by the decay of the original root, and becoming a truly parasitical plant. Withering de- scribes the plant in his arrangement as being oiiginally parasitical; but this is certainly not the fact. 943. The Orobanche, or Broom-rape, which attaches itself by the root to the roots of other plants, is also to be regarded as being truly parasitical, though it sometimes sends out fibres which seem to draw nourishment from the earth. It is found most frequently on the roots of common Broom. 944. The Epidendron flos aeris is regarded also by botanists as a parasitical plant, because it is generally found growing on other trees. But as it is found to grow in old tan, it probably derives only support from the bark of trees, and not nourishment.
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Keywords: ., bookcentury1800, bookpublisherlondonprinte, booksubjectgardening
