. Advanced biology. Biology; Physiology; Reproduction. NATURAL PROPAGATION 261. Underground rootlike stems or rhizomes are charac- teristic of some plants. As they run under the ground, they give off buds which form new plants. well as many grasses and weeds, are usually propa- gated in this way. Seeds of strawberries are so verv difficult to cultivate ft/ that horticulturists de- pend entirel}^ upon the runners for propagation. Rhizome. A common form of subterranean stem is the rhizome or rootstock. It is a hori- zontal stem running under the ground. As it grows beneath the soil, it sends off
. Advanced biology. Biology; Physiology; Reproduction. NATURAL PROPAGATION 261. Underground rootlike stems or rhizomes are charac- teristic of some plants. As they run under the ground, they give off buds which form new plants. well as many grasses and weeds, are usually propa- gated in this way. Seeds of strawberries are so verv difficult to cultivate ft/ that horticulturists de- pend entirel}^ upon the runners for propagation. Rhizome. A common form of subterranean stem is the rhizome or rootstock. It is a hori- zontal stem running under the ground. As it grows beneath the soil, it sends off roots from its under surface, and leaf-bearing branches from its upper surface. The rhizome is usually somewhat thickened with food. Growth takes place year after year from the same rootstock which bears the annual scars of the ground stems. In the common ferns, the so-called fronds are simply large leaves developed directly from the rhizome. Blood- root, Solomon's-seal, wake- robin, lily of the valley, and many other spring flowers are propagated from rootstocks. Tubers. The potato plants have slender, under- t. ground stems. Certain Potatoes can be raised trom seeds. The usual . f -r method of propagating potatoes, however, is to use a TCglOUS OI thCSe StcmS Cn- part of the tuber with an eye. The eye is a bud , + f + k T'Vi from which the stems and roots grow. large tO lOrm lUDers. ine. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Wheat, Frank Merrill; Fitzpatrick, Elizabeth T. New York ; Boston [etc. ] : American Book Company
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