. Fecundation in plants. Plant embryology; Plants, Sex in; Karyokinesis. 24 INTRODUCTION. The nuclear membranes are not formed about the daughter nuclei in Lilium tnartagon until after the division of the cell, at least in many instances. Soon after the division of the cell, however, the nuclear membranes are laid dovsm. In all plants examined, each appears first. Fig. to.—Telophase and daughter nucleus of heterotypic mitosis i^Liliuvn martagon). G, daughter spirem formed hy union of granddaughter segments end to end; each daughter spirem is in the form of a disk from whose edges kinoplasmic H
. Fecundation in plants. Plant embryology; Plants, Sex in; Karyokinesis. 24 INTRODUCTION. The nuclear membranes are not formed about the daughter nuclei in Lilium tnartagon until after the division of the cell, at least in many instances. Soon after the division of the cell, however, the nuclear membranes are laid dovsm. In all plants examined, each appears first. Fig. to.—Telophase and daughter nucleus of heterotypic mitosis i^Liliuvn martagon). G, daughter spirem formed hy union of granddaughter segments end to end; each daughter spirem is in the form of a disk from whose edges kinoplasmic Hbers extend out in direction of cell-wall; system of connecting libers slightly bulged out at middle. H, the cell-plate appears in center of system of connecting fibers, I, Jf cell-division is completed, but the daughter nuclei are not yet provided with membranes. K, a daughter nucleus at a later stage with nuclear membrane; chromatin spirem continuous, the free ends having been made by knife in sectioning. as a weft of kinoplasmic fibers, which are undoubtedly derived from the spindle. It is interesting to note that in Lilium and Podo-phyllum the nuclear membrane appears in the same form in which it disap- peared during the formation of the spindle. The fact that the nuclear membrane arises first as a weft of kinoplasmic fibers is a strong proof that it is of a kinoplasmic 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 Mottier, David Myers. [Washington] The Carnegie Institution of Washington
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