. Morphology of spermatophytes. [Part I. Gymnosperms]. Gymnosperms; Plant morphology. CONIFERALES 89 THE MALE GAMETOPHYTE The male gametophyte of Conifers has long been known in a general way, but Belajeff,**' investigating Taxus baccata and Juniperus communis in 1891, seems to have been the first to recognize the homologies and functions as at present understood. In 1892 Strasburger,^^ studying a somewhat wider range of forms, notably Larix and Cupressus, extended Belajeff's con- clusions to Conifers in general. This was followed in 1893 by the further studies of Belajeff^^ upon Taxus and Jun
. Morphology of spermatophytes. [Part I. Gymnosperms]. Gymnosperms; Plant morphology. CONIFERALES 89 THE MALE GAMETOPHYTE The male gametophyte of Conifers has long been known in a general way, but Belajeff,**' investigating Taxus baccata and Juniperus communis in 1891, seems to have been the first to recognize the homologies and functions as at present understood. In 1892 Strasburger,^^ studying a somewhat wider range of forms, notably Larix and Cupressus, extended Belajeff's con- clusions to Conifers in general. This was followed in 1893 by the further studies of Belajeff^^ upon Taxus and Juniperus. In 1894 Dixon** published a detailed account of the male gametophyte of Pinus silvestris, which was followed by us in 1896 with confirmatory studies of Pinu^ Laricio. In 1896 Shaw** published partial results of his studies of Sequoia; in 1899 Jager *" investigated Taxus haccata anew, and with .abundant material; recently Coker *^ has published some notes. Fig. 68.—Pinus Laricio, showing mitosis in pollen mother cells, May 3d ; x 500. on Taxodium disUchum; while Arnoldi ** has obtained some interesting results from a study of Cephalotaxus Fortunei. These accounts indicate a fairly uniform series of events, a uni- formity somewhat obscured by the varying terminology of the writers. We have secured a very complete series of prepara- tions from Pinus Laricio, and the following account is written from them (Figs. 68, 69).. 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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