. A manual of botany. Botany. 298 MANUAL OF BOTANY basal portion or venter containing the oosphere, and surmounted by a neck or narrow portion, the length of which varies in different groups of plants {fig. 497). A good deal of difference in completeness of differentiation of the ganietangium is fomid in different groups. Its reduction reaches its greatest extent in the Angiosperms, where the archegonium is apparently unrepresented, or represented only Fig. Fig. 490. A. Portion of the axis of Ghara fragilis. s. Nucule or oogoniiiiQ. a. Globule or antlieridium. b. luteruode. c. Crown or c
. A manual of botany. Botany. 298 MANUAL OF BOTANY basal portion or venter containing the oosphere, and surmounted by a neck or narrow portion, the length of which varies in different groups of plants {fig. 497). A good deal of difference in completeness of differentiation of the ganietangium is fomid in different groups. Its reduction reaches its greatest extent in the Angiosperms, where the archegonium is apparently unrepresented, or represented only Fig. Fig. 490. A. Portion of the axis of Ghara fragilis. s. Nucule or oogoniiiiQ. a. Globule or antlieridium. b. luteruode. c. Crown or corona of nucule. j3. Abortive leaves. /3', j3", )3". Sterile leaflets, b. sk. Nucule, and a, globule, both in an early stage of develop- ment, -w. Nodal cell of leaf. u. Union cell between it and basal node of globule. /. Cavity of internode of leaf. hr. Cells of leaf covered with cortex. After Sachs. l''i>/. 491. A portion of a filament, fli, oifig. 492, in the cells of which the antherozoids are developed ; vnth. a 2-ciliated antherozoul by its side. Fig. 492. A globule cut in half to show the oblong cells or manubria, c, and the septate fi'aments, J\l. After Henfrej'. Fig. 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 Green, J. Reynolds (Joseph Reynolds), 1848-1914. London, J. & A. Churchill
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