The Geological History of PlantsK. Paul, Trench, 1888 - 290 pagini |
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... FLORA - CULMINATION OF THE ACROGENS - FOR- MATION OF COAL CHAPTER V. THE FLORA OF THE EARLY MESOZOIC - REIGN OF PINES AND CYCADS . CHAPTER VI . THE REIGN OF ANGIOSPERMS IN THE LATER CRETACEOUS AND EARLY TERTIARY OR KAINOZOIC P viii ...
... FLORA - CULMINATION OF THE ACROGENS - FOR- MATION OF COAL CHAPTER V. THE FLORA OF THE EARLY MESOZOIC - REIGN OF PINES AND CYCADS . CHAPTER VI . THE REIGN OF ANGIOSPERMS IN THE LATER CRETACEOUS AND EARLY TERTIARY OR KAINOZOIC P viii ...
Pagina 24
... flora to which I have already referred . They are trees of large size , with a coaly bark and large spreading roots , having the surface of the stem smooth or irregularly ribbed , but with a nodose or jointed appearance . Internally ...
... flora to which I have already referred . They are trees of large size , with a coaly bark and large spreading roots , having the surface of the stem smooth or irregularly ribbed , but with a nodose or jointed appearance . Internally ...
Pagina 25
... the author on " Erian Flora of Canada , " 1871 and 1882 , for full description of these fossils . " American Journal of Science , " 1878 . gard the supposed stigmaria - like roots as really stems LAURENTIAN AND EARLY PALEOZOIC . 25.
... the author on " Erian Flora of Canada , " 1871 and 1882 , for full description of these fossils . " American Journal of Science , " 1878 . gard the supposed stigmaria - like roots as really stems LAURENTIAN AND EARLY PALEOZOIC . 25.
Pagina 26
... flora extending back even to the Laurentian itself ? Multitudes of markings occurring on the surfaces of the older rocks have been referred to the Algæ or sea- weeds , and indeed this group has been a sort of refuge for the destitute to ...
... flora extending back even to the Laurentian itself ? Multitudes of markings occurring on the surfaces of the older rocks have been referred to the Algæ or sea- weeds , and indeed this group has been a sort of refuge for the destitute to ...
Pagina 39
... Flora , " 1852 , p . 92 , Table xli . Ibid . , p . 88 , Table ii . ‡ Brongniart , " Vegeteaux Fossiles , " Plate vi . , Figs . 7 to 12 . # " Proceedings of the Vienna Academy , " 1881. Hostinella , of this author , is almost certainly ...
... Flora , " 1852 , p . 92 , Table xli . Ibid . , p . 88 , Table ii . ‡ Brongniart , " Vegeteaux Fossiles , " Plate vi . , Figs . 7 to 12 . # " Proceedings of the Vienna Academy , " 1881. Hostinella , of this author , is almost certainly ...
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Termeni și expresii frecvente
acrogens aërial roots Algæ allied America appear arctic areoles bark beds belong bituminous branches Brongniart bundles Calamites Canada Carboniferous Caulopteris cells cellular character climate coal coal-formation conifers Cordaites cycads cylinder Dadoxylon Dawson Demy 8vo described Devonian diameter Eocene Erian Europe exogenous Fcap ferns flora formation forms fossil plants fronds fructification fruit Gaspé genera genus Geological Society graphite Greenland hemisphere Illustrations Journal Laramie Laurentian leaf-bases leaf-scars leaves Lepidodendron Lepidophloios Lesquereux limestone Lower Carboniferous Lycopods macrospores medullary rays Mesozoic Middle modern Nova Scotia occur outer Paleozoic period Permian petioles pines pinnate pinnules pith present probably Prof Psilophyton referred resemble Rhizocarps ribbed rocks sandstones scalariform scars Second Edition Sequoia shales Sigillaria Silurian similar Small crown 8vo species specimens Sphenophyllum Sporangites spore-cases spores sporocarps stems Sternbergia structure Tertiary thick Third Edition tion tissue tree-ferns trees trunks Upper Cretaceous vascular vegetable vols Williamson wood woody
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