. Studies in fossil botany . Paleobotany. LEPIDOSTROBUS i»5 about .02 mm. in diameter. The megaspores are relatively of enormous dimensions, so that they are easily visible .to the naked eye. Their mean diameter. OK Fig. 74.—Lepidostrobus Veltkeimianus. Longitudinal section of cone, showing micro- sporangia above and megasporangia below, ax, axis of cone, showing stele (zy) and leaf-traces, passing out to sporophylls, br; mi, microsporangia ; ma, megasporangia, containing a few spinose megaspores. X about 4. S. Coll. 1008. (G. T. G.) is at least .8 mm., quite forty times that of the micro- spo
. Studies in fossil botany . Paleobotany. LEPIDOSTROBUS i»5 about .02 mm. in diameter. The megaspores are relatively of enormous dimensions, so that they are easily visible .to the naked eye. Their mean diameter. OK Fig. 74.—Lepidostrobus Veltkeimianus. Longitudinal section of cone, showing micro- sporangia above and megasporangia below, ax, axis of cone, showing stele (zy) and leaf-traces, passing out to sporophylls, br; mi, microsporangia ; ma, megasporangia, containing a few spinose megaspores. X about 4. S. Coll. 1008. (G. T. G.) is at least .8 mm., quite forty times that of the micro- spores (see Fig. 75, C). The number of megaspores in each sporangium was small, certainly not more than sixteen, and perhaps as few as eight (cf. Figs. 73 and. 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 Scott, Dukinfield Henry, 1854-1934. London, A. and C. Black
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