. Outlines of plant life : with special reference to form and function . Botany. VEGETATIVE REPRODUCTION. 211 III. Brood buds, etc. 297. Simple forms.—In their simplest form brood buds consist of a single cell, though more commonly they are two- to several-celled. Like spores, they are supplied with re- serve food. The shape of brood buds is various. When not furnished with distinct organs, they are club-shaped, lentic- ular, or spherical. In some thalloid liverworts (^Marchantia and Lunularia) they are produced on the surface of the thal- lus, surrounded wholly or on one side by an outgrowth
. Outlines of plant life : with special reference to form and function . Botany. VEGETATIVE REPRODUCTION. 211 III. Brood buds, etc. 297. Simple forms.—In their simplest form brood buds consist of a single cell, though more commonly they are two- to several-celled. Like spores, they are supplied with re- serve food. The shape of brood buds is various. When not furnished with distinct organs, they are club-shaped, lentic- ular, or spherical. In some thalloid liverworts (^Marchantia and Lunularia) they are produced on the surface of the thal- lus, surrounded wholly or on one side by an outgrowth from the surface forming a cup or a crescentic ledge (figs. 39, 177). In some mosses broody buds arise from the apex of the Stem, either in cup-like clusters of leaves or exposed (A, A', fig. 178) ; in others they are smaller. 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 Barnes, Charles Reid, 1858-1910. New York : Henry Holt and Company
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