. Fossil plants : for students of botany and geology . Paleobotany. 306 FILICALES [CH. aceae and thalloid Liverworts^ is worthy of mention as one of the many possible pitfalls to be avoided by the palaeobotanical student. The long linear fronds of such genera as Vittaria and Monogramme might well be identified in a fossil state as the leaves of a grass-like Monocotyledon, or compared with the. Fig. 236 h. Pteris aquilina. Leaf from the same plant grown out of doors, (i nat. size.) After Boodle. foliage of Isoetes or Pilulana. The resemblance of some fern leaves with reticulate venation to thos

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. Fossil plants : for students of botany and geology . Paleobotany. 306 FILICALES [CH. aceae and thalloid Liverworts^ is worthy of mention as one of the many possible pitfalls to be avoided by the palaeobotanical student. The long linear fronds of such genera as Vittaria and Monogramme might well be identified in a fossil state as the leaves of a grass-like Monocotyledon, or compared with the. Fig. 236 h. Pteris aquilina. Leaf from the same plant grown out of doors, (i nat. size.) After Boodle. foliage of Isoetes or Pilulana. The resemblance of some fern leaves with reticulate venation to those of Dicotyledons has led astray experienced palaeobotanists; it is not only the anasto- mosing venation in the leaves of several ferns that simulates 1 Goebel (05) ; Baker (67).. 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 work.. Seward, A. C. (Albert Charles), 1863-1941. Cambridge : University Press