. Studies in fossil botany . Paleobotany. LEPIDOSTROBUS 183 on this subject I am indebted to Mr. R. Kidston, This strobilus is only about 1 cm. in diameter, and was probably not more than 4 cm. in length. In general morphology and structure it is essentially similar to L. oldhamius, but all the parts are on a smaller scale, and the slender stele of the axis has but little pith (see Fig. 72). The sporophylls have the. Fig. 72.—Lepidostrobits Veltheimianus. Transverse section of cone, through microspore- region. stele of axis; $/•., laminae of sporophylls (only partially shown); sm.
. Studies in fossil botany . Paleobotany. LEPIDOSTROBUS 183 on this subject I am indebted to Mr. R. Kidston, This strobilus is only about 1 cm. in diameter, and was probably not more than 4 cm. in length. In general morphology and structure it is essentially similar to L. oldhamius, but all the parts are on a smaller scale, and the slender stele of the axis has but little pith (see Fig. 72). The sporophylls have the. Fig. 72.—Lepidostrobits Veltheimianus. Transverse section of cone, through microspore- region. stele of axis; $/•., laminae of sporophylls (only partially shown); sm., microsporangia; in the two to the left trabeculae are shown. X about 7. S. Coll. 400. (G. T. G.) same general form as in the previous species (Fig. 74), but the pedicels on which the sporangia are seated are relatively flatter and wider. In some, at least, of the specimens, their arrangement is in alternating verticils. The heterospory is beautifully shown in several specimens ; from the longitudinal sections it is 1 This Lepidostrobus was described and figured by Williamson in his " Organisation of the Fossil Plants of the Coal-measures," Part iii. 1872, and Part xix. 1893, Phil. 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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