Regeneration . B. Fig. 8. — Aftt-r Gmber. Stentor cceruleus. A. Cut into three pieces. B. This row shows regen-eration of anterior piece. C. This row shows regeneration of middle piece, D. Ihis rowshows regeneration of posterior piece. is brought about, not by the development of new protoplasm over thecut-end, but by a change of the old protoplasm into the new form. Asimilar experiment is shown in Fig. 8, in which a stentor was cut intothree pieces, each piece containing a part of the old nucleus. REGENERATION IN PLANTS In the higher plants the production of a new plant from a piecetakes place


Regeneration . B. Fig. 8. — Aftt-r Gmber. Stentor cceruleus. A. Cut into three pieces. B. This row shows regen-eration of anterior piece. C. This row shows regeneration of middle piece, D. Ihis rowshows regeneration of posterior piece. is brought about, not by the development of new protoplasm over thecut-end, but by a change of the old protoplasm into the new form. Asimilar experiment is shown in Fig. 8, in which a stentor was cut intothree pieces, each piece containing a part of the old nucleus. REGENERATION IN PLANTS In the higher plants the production of a new plant from a piecetakes place in a different way from that by which in animals a newindividual is formed. The piece does not complete itself at the cut-ends, nor does it change its form into that of a new plant, but theleaf-buds that are present on the piece begin to develop, especiallythose near the distal end of the piece, as shown in Fig. 32, A, androots appear near the basal end of the piece. The changes that takeplace in the piece are


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