. Plant studies; an elementary botany. Botany. Fig. 384. Section through cupule of Marchantia, showing wall in which are chloro- phyll-bearing air-chambers with air-poree, and gemmae (a) in various 6tages of development.—After Fro. 285. Harchantia polymorpha : the lower figure represents a gametophyte bear- ing a mature antheridial branch (d), some young antheridial branches, and also some cupnles with toothed margins, in which the gemmae may be seen; the upper figure represents a partial section through the antheridial disk, and shows antheridia within the antheridial cavities (a
. Plant studies; an elementary botany. Botany. Fig. 384. Section through cupule of Marchantia, showing wall in which are chloro- phyll-bearing air-chambers with air-poree, and gemmae (a) in various 6tages of development.—After Fro. 285. Harchantia polymorpha : the lower figure represents a gametophyte bear- ing a mature antheridial branch (d), some young antheridial branches, and also some cupnles with toothed margins, in which the gemmae may be seen; the upper figure represents a partial section through the antheridial disk, and shows antheridia within the antheridial cavities (a, b, c, d, «,/).—After Knt. 21. 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 Coulter, John Merle, 1851-1928. New York, D. Appleton and Company
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