. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. THE AXIAL GRADIENTS IN HYDROZOA. 187 resorbed and extensive stolon systems developed from practically all tips (Fig. 10). These stolons bear a few erect stems with hydranth buds (Fig. 10; h, h}, but these did not develop 11. In HC1 W/5OOO ± pH , after forty-eight hours, most terminal hydranths of upper branches disintegrated and many subapical stolons present. Many hydranths at lower levels intact; no stolons. In controls in sea water, changed daily, termi- nal hydranths mostly disintegrated but new hydranths de
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. THE AXIAL GRADIENTS IN HYDROZOA. 187 resorbed and extensive stolon systems developed from practically all tips (Fig. 10). These stolons bear a few erect stems with hydranth buds (Fig. 10; h, h}, but these did not develop 11. In HC1 W/5OOO ± pH , after forty-eight hours, most terminal hydranths of upper branches disintegrated and many subapical stolons present. Many hydranths at lower levels intact; no stolons. In controls in sea water, changed daily, termi- nal hydranths mostly disintegrated but new hydranths develop- ing and very few stolons present. 12. In HC1 m/i5OO ± pH hydranths disintegrate in one to two days, terminal hydranths usually first. After three days numerous stolons appeared in basal halves of pieces, but all development was inhibited in the apical halves. In sea water controls after three days the original hydranths were gone, many new hydranths were developing and few stolons appeared. 13. In pieces kept in standing water in closed vessels without air the changes during the first forty-eight hours are essentially. 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 Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
