. Contributions from the Hull Botanical Laboratory. Plants. 4o8 BOTANICAL GAZETTE [DECEMBER cupule is less than the transverse diameter, as shown by figs. 12 and 1 j, which represent respectively longitudinal and transverse sections through cupules of about the same Fig. 13.—Transverse section of a Fig. 14.—Origin of cupule of Lunu- cupule about the same age as fig. 12. laria; p, gemmiparous cells elongated and dividing; rim (w) developed only on pos- terior margin; /, young air chamber. It is not necessary to follow the history of the cupule further, for it is a familiar object in all l
. Contributions from the Hull Botanical Laboratory. Plants. 4o8 BOTANICAL GAZETTE [DECEMBER cupule is less than the transverse diameter, as shown by figs. 12 and 1 j, which represent respectively longitudinal and transverse sections through cupules of about the same Fig. 13.—Transverse section of a Fig. 14.—Origin of cupule of Lunu- cupule about the same age as fig. 12. laria; p, gemmiparous cells elongated and dividing; rim (w) developed only on pos- terior margin; /, young air chamber. It is not necessary to follow the history of the cupule further, for it is a familiar object in all laboratories of instruction and has been well described. The cupule of Lunularia has also been investigated sufficiently to show that its origin is essentially the same as that of Marchantia (fig- z4)> except that the development of the rim takes place only on the posterior side of the gemmiparous region, which is also far more extensive. In some cases, late in development, a slight anterior. 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 Hull Botanical Laboratory. [Chicago : University of Chicago Press
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectplants, bookyear1895
