. Morphology of gymnosperms. Gymnosperms; Plant morphology. Figs. 328-331.—Pollen tube structiires of Cupressineae: figs. 328, 329, Thuja occidentalis, fig. 328 showing the body cell with stalk and tube nuclei in advance, and fig. 329 the two male cells; Xs6o; after Land (72); fig. 330, Cupressus Govenimm, end of pollen tube with complex of male cells, the stalk and tube nuclei in advance; X3S0; after JuEL (91); fig. 331, Libocedrus decurrens, the two male cells; after Law- son (131). to be related to the tendency to eliminate one of the male cells. In Tsuga canadensis (60) one male cell becom
. Morphology of gymnosperms. Gymnosperms; Plant morphology. Figs. 328-331.—Pollen tube structiires of Cupressineae: figs. 328, 329, Thuja occidentalis, fig. 328 showing the body cell with stalk and tube nuclei in advance, and fig. 329 the two male cells; Xs6o; after Land (72); fig. 330, Cupressus Govenimm, end of pollen tube with complex of male cells, the stalk and tube nuclei in advance; X3S0; after JuEL (91); fig. 331, Libocedrus decurrens, the two male cells; after Law- son (131). to be related to the tendency to eliminate one of the male cells. In Tsuga canadensis (60) one male cell becomes larger than the 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
Size: 1343px × 1861px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookpublisherchicagouniversityo
