The Geological History of PlantsK. Paul, Trench, 1888 - 290 pagini |
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... Genera . By WILLIAM PHILLIPS , F.L.S. 58 . LXII . INTERNATIONAL LAW . With Materials for a Code of International Law . By Professor LEONE LEVI . 58 . LXIII . THE ORIGIN OF FLORAL STRUCTURES THROUGH INSECT AGENCY . By Prof. G. HENSLOW ...
... Genera . By WILLIAM PHILLIPS , F.L.S. 58 . LXII . INTERNATIONAL LAW . With Materials for a Code of International Law . By Professor LEONE LEVI . 58 . LXIII . THE ORIGIN OF FLORAL STRUCTURES THROUGH INSECT AGENCY . By Prof. G. HENSLOW ...
Pagina 29
... genera are really Algae related to Caulerpa , or even branches of Conifers of the genus Brachyphyllum . Nereites and Planulites are tracks and burrows of worms , with or without marks of setæ , and some of the * The name Bilobites was ...
... genera are really Algae related to Caulerpa , or even branches of Conifers of the genus Brachyphyllum . Nereites and Planulites are tracks and burrows of worms , with or without marks of setæ , and some of the * The name Bilobites was ...
Pagina 37
... genera . All of these plants have either car- bonaceous matter or produce organ- ic stains on the matrix . The organism with diverging FIG . 13. - Buthotrephis Grantii , a genuine Alga from the Silurian , Canada . wedge - shaped fronds ...
... genera . All of these plants have either car- bonaceous matter or produce organ- ic stains on the matrix . The organism with diverging FIG . 13. - Buthotrephis Grantii , a genuine Alga from the Silurian , Canada . wedge - shaped fronds ...
Pagina 45
... which all but seven are terrestrial plants , representing * Jena , 1860 . a large number of the genera occurring in the succeeding CHAPTER III THE ERIAN OR DEVONIAN FORESTS-ORIGIN OF PETROLEUM-THE AGE OF ACROGENS AND GYMNOSPERMS.
... which all but seven are terrestrial plants , representing * Jena , 1860 . a large number of the genera occurring in the succeeding CHAPTER III THE ERIAN OR DEVONIAN FORESTS-ORIGIN OF PETROLEUM-THE AGE OF ACROGENS AND GYMNOSPERMS.
Pagina 46
... genera , and including all the great types of vascular Cryptogams , the Gymnosperms , and even one ( still doubtful ) Angiosperm , Many new forms have also been described from the De- vonian of Scotland and of the Continent of Europe ...
... genera , and including all the great types of vascular Cryptogams , the Gymnosperms , and even one ( still doubtful ) Angiosperm , Many new forms have also been described from the De- vonian of Scotland and of the Continent of Europe ...
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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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