. Morphology of spermatophytes. [Part I. Gymnosperms]. Gymnosperms; Plant morphology. 14 MoHI'IlOLOdY OP SFEK:\[AT0I'IIYTBS It is of iiitei-ortt to note that immerons stomata are found on the spovangiinu wall of Ceratozamia, EiiccpJiahnios, and Staii- qeria, and donbtlcss in other genera. They are fonnd on the wall which is oijposite to the slit of dehiscenceâthat is, toward the sporophyll. Stomata also occur npon pollen sacs of certain Angiospenns, hnt so far as recorded not upon the s])orangia of Pteridoplivtes. The d('\'(do]inient of the sporangia, their large ont]nit (if spores, their arra
. Morphology of spermatophytes. [Part I. Gymnosperms]. Gymnosperms; Plant morphology. 14 MoHI'IlOLOdY OP SFEK:\[AT0I'IIYTBS It is of iiitei-ortt to note that immerons stomata are found on the spovangiinu wall of Ceratozamia, EiiccpJiahnios, and Staii- qeria, and donbtlcss in other genera. They are fonnd on the wall which is oijposite to the slit of dehiscenceâthat is, toward the sporophyll. Stomata also occur npon pollen sacs of certain Angiospenns, hnt so far as recorded not upon the s])orangia of Pteridoplivtes. The d('\'(do]inient of the sporangia, their large ont]nit (if spores, their arrangement in sori, their severaHayered wall, and their ih'hisccncc, are all characters snggestive of ilarattiaceae; while the chief resemlilance to Angiosperms is found in the livpodormal archesporimn. T HE ilEGAS POKAXGlUII In most cases a definite ovulate stroliihis is organized, which is terminal in Cyras, and possibly so in the other genera (Figs. 11, 12, 13). In Cycas the axis of the strobiliis continues. 'â /n/â. uviilatf stroliihis.â pliotn,i.'i- talu-n ill Tark. growth after the seeds have been formed, produces foliage leaves, and finally organizes another stroliilus. In all other cases, incbiding tlie staminate strobilus of Ci/i'us, a strobilus stops the growlh of llie axis. The size of the ovulate strobilus. 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; Chamberlain, Charles Joseph, b. 1863. New York, D. Appleton
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Keywords: ., bookauthorcoulterj, bookcentury1900, bookdecade1900, bookyear1901
