| Coal forests of giant lycopods, calamites, pteridophytes and ferns cover the tropical landmasses. |
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| The site is rich in acidophilic species, particularly pteridophytes and bryophytes, and contains a number of regionally rare taxa. |
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| The other especially weedy fern is bracken, which also unusually for pteridophytes has vessels. |
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| These features also occur in spores of bryophytes and some pteridophytes. |
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| The earliest of the vascular plants are the pteridophytes and lycopods. |
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| Electrophoresis is modifying our concepts of evolution in homosporous pteridophytes. |
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| A pteridologist is a specialist in the study of pteridophytes in a broader sense that includes the more distantly related lycophytes. |
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| Algae formed 9 per cent of the total new species while pteridophytes and bryophytes contributed to 2 and 3 per cent, respectively. |
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| The taxonomic treatments cover pteridophytes and gymnosperms, dicotyledons, and monocotyledons. |
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| Airborne pollen of entomophilous plants and spores of pteridophytes in Rzeszow and its environs. |
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| The study of ferns and other pteridophytes is called pteridology. |
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| Hence, together with the other spore-bearing vascular plants, the Lycophytes, Psilophytes and Pterophytes, Equisetum species are classified as pteridophytes. |
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| A preliminary phylogenetic analysis of sporogenesis in Pteridophytes. |
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| Cryptogamic Botany, Volume II, Bryophytes and Pteridophytes. |
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