. Morphology of gymnosperms. Gymnosperms; Plant morphology. 216 217 Figs. 216, 217.—Ginkgo biloba: fig. 216, branch with dwarf shoots bearing stami- nate strobili and leaves; about natural size; fig. 217, single staminate strobilus, showing character of individual stamens (a stalk ending in a knob and bearing two pendent sporangia); —After Coulter (54). is evident that if the intermixed sterile sporophylls and bracts of the latter were ehminated, the general structure of the former would be obtained. The strobili are first evident during the early summer of the year preceding the maturing
. Morphology of gymnosperms. Gymnosperms; Plant morphology. 216 217 Figs. 216, 217.—Ginkgo biloba: fig. 216, branch with dwarf shoots bearing stami- nate strobili and leaves; about natural size; fig. 217, single staminate strobilus, showing character of individual stamens (a stalk ending in a knob and bearing two pendent sporangia); —After Coulter (54). is evident that if the intermixed sterile sporophylls and bracts of the latter were ehminated, the general structure of the former would be obtained. The strobili are first evident during the early summer of the year preceding the maturing of the pollen (53), but are hidden in buds that cannot be distinguished from leaf buds. The development of the sporophylls is in acropetal succession, and the older sporangia reach. 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; Coulter, John Merle, 1851-1928. Morphology of spermatophytes. Part I. Gymnosperms. Chicago, University of Chicago Press
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