. Fossil plants : for students of botany and geology . Paleobotany. 108 LYCOPODIALES [CH, found its way into the interior of a cushion. Each leaf-trace is accompanied by a parichnos strand as in the true Lepidodendron; at the base of the leaf-cushion the parichnos branches into two arms which diverge slightly right and left of the leaf-trace, finally entering the base of the leaf lamina as two lateral strands (fig. 147, p). At one point in fig. 146, D the section has shaved a leaf-trace represented by a black patch resting on the parichnos. Pig. 147. Lepidophloios leaf-cushion in tangential se
. Fossil plants : for students of botany and geology . Paleobotany. 108 LYCOPODIALES [CH, found its way into the interior of a cushion. Each leaf-trace is accompanied by a parichnos strand as in the true Lepidodendron; at the base of the leaf-cushion the parichnos branches into two arms which diverge slightly right and left of the leaf-trace, finally entering the base of the leaf lamina as two lateral strands (fig. 147, p). At one point in fig. 146, D the section has shaved a leaf-trace represented by a black patch resting on the parichnos. Pig. 147. Lepidophloios leaf-cushion in tangential section. (From a section in the Williamson Collection, British Museum, No. 1973.) just above the line ef, but it passes through one of the parichnos arms p' which debouches on to the leaf-scar sc at p. Had the section been cut along the line cd of fig. 146, A the leaf- trace would have been seen in a position similar to that occupied by the parichnos p' in fig. 146, D. Fig. 147, A, affords a good example of a tangential section through a Lepidophloios leaf-cushion, 1 cm. broad, like that repre-. 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 Seward, A. C. (Albert Charles), 1863-1941. Cambridge : University Press
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishercambr, bookyear1898
