. Studies in fossil botany . Paleobotany. 484 STUDIES IN FOSSIL BOTANY scattered, dark groups of sclerotic tissue, such as we find in the pith of L. oldhamium. The most characteristic feature of Lyginodendron, however, namely the strands of primary wood on the. _£C' Fig. 178.—Cycadoxylon rolmstiim. Part of transverse section, showing inner portion of normal wood, with two anomalous zones of wood and bast. _r2, normal secondary wood ; x^ypjft, first inverted band of medullary xylem and phloem ; .r4, /A4, second band of the same ; /, pith. X 12. S. Coll. 457. (G. T. G.) border of the pith, canno
. Studies in fossil botany . Paleobotany. 484 STUDIES IN FOSSIL BOTANY scattered, dark groups of sclerotic tissue, such as we find in the pith of L. oldhamium. The most characteristic feature of Lyginodendron, however, namely the strands of primary wood on the. _£C' Fig. 178.—Cycadoxylon rolmstiim. Part of transverse section, showing inner portion of normal wood, with two anomalous zones of wood and bast. _r2, normal secondary wood ; x^ypjft, first inverted band of medullary xylem and phloem ; .r4, /A4, second band of the same ; /, pith. X 12. S. Coll. 457. (G. T. G.) border of the pith, cannot be recognised with certainty in Nield's specimen, and if present, must, it would seem, have been much reduced. The remains of leaf- traces, passing out through the secondary wood, are seen at several places, but even here the primary xylem of the outgoing bundle has not been detected, It must. 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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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherlondonaandcblack
