. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. D.(SR,H,S) Bl~CuE, (P,) Bz"C2V2 (P2) B4"C^E'<W FEMALE PLANT ON BODY WALL (Anth.) A, ^C2-(Anth.) A2vC3-(Anth1 , B, B-(H) MALE PLANT FIGURE 55. Diagrams of cell lineage in developing plants of H. stylopygae. See text for explanation. Tn the female plant growing on the body wall proper of the antenna, the third or subbasal cell (B:) produces by budding a cell (Q) which in turn gives rise to two cells (Di and E:) which produce the secondary receptacle (SR) and peri- thecium (P), respectively. But, simultaneously
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. D.(SR,H,S) Bl~CuE, (P,) Bz"C2V2 (P2) B4"C^E'<W FEMALE PLANT ON BODY WALL (Anth.) A, ^C2-(Anth.) A2vC3-(Anth1 , B, B-(H) MALE PLANT FIGURE 55. Diagrams of cell lineage in developing plants of H. stylopygae. See text for explanation. Tn the female plant growing on the body wall proper of the antenna, the third or subbasal cell (B:) produces by budding a cell (Q) which in turn gives rise to two cells (Di and E:) which produce the secondary receptacle (SR) and peri- thecium (P), respectively. But, simultaneously some of the "B" cell series have divided to give additional cells "B3" and "B4" (and sometimes a "B5"). ' Cell "B2" then differentiates in a manner similar to that of "B^" and later cell "B3" does like- wise. When seven cells are present instead of six it seems that cell "B4" also does likewise at a still later time. Cells "Alf" "A2," and the last one of the "B" series contribute nothing except that the whole of the "A" and "B" series, after budding off of the "C" series, remain as the so-called primary receptacle. And, finally, the first secondary receptacle (SR) gives rise to the single large haustorium (H) and then later hypertrophies to produce the peculiar "shield" (S) covering the base of the plant. In the male plant, the basal cell (B2) forms the attachment to the host and sends a haustorium (H) into the insect, while the apical cell (At) buds off cells (the "C" series) each of which gives rise to an antheridium (Anth.).. 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laborat
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
