. Morphology of gymnosperms. Gymnosperms; Plant morphology. 240 MORPHOLOGY OF GYMNOSPERMS THE MICROSPORANGIUM The microsporangiate strobili are never terminal on the primary axis or even upon the larger branches (figs. 263-265). Their rela- tion to the axes, foliage leaves, and scales is variable. Sometimes. Figs. 263-265.—Strobili of araucarians: fig. 263, Agathis australis; staminate (right) and ovulate strobili of same age; fig. 264, Araucaria imhricata; two staminate strobili with a vegetative bud between them; fig. 265, Agathis bornensis; transverse section of sporophyll and pendent micro
. Morphology of gymnosperms. Gymnosperms; Plant morphology. 240 MORPHOLOGY OF GYMNOSPERMS THE MICROSPORANGIUM The microsporangiate strobili are never terminal on the primary axis or even upon the larger branches (figs. 263-265). Their rela- tion to the axes, foliage leaves, and scales is variable. Sometimes. Figs. 263-265.—Strobili of araucarians: fig. 263, Agathis australis; staminate (right) and ovulate strobili of same age; fig. 264, Araucaria imhricata; two staminate strobili with a vegetative bud between them; fig. 265, Agathis bornensis; transverse section of sporophyll and pendent microsporangia.—From photographs by Thomson. they appear terminal on small leafy shoots of the last order, and sometimes they occur in the axils of the leaves of stronger shoots. In Pinus they replace dwarf shoots in the axils of scales, being usually numerous and forming a cluster beyond which the parent axis continues its 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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