The Geological History of PlantsK. Paul, Trench, 1888 - 290 pagini |
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... Trees ( two Figures ) Lepidodendron Lepidophloios Asterophyllites , & c .. Calamites ( five Figures ) Ferns of the Coal - formation ( six Figures ) Noeggerathia dispar Cordaites Fruits of Cordaites , & c . Conifers of the Coal ...
... Trees ( two Figures ) Lepidodendron Lepidophloios Asterophyllites , & c .. Calamites ( five Figures ) Ferns of the Coal - formation ( six Figures ) Noeggerathia dispar Cordaites Fruits of Cordaites , & c . Conifers of the Coal ...
Pagina 7
... trees of temperate climates belong to this group . On referring to the geological table , it will be seen that there is a certain rough correspondence between the order of rank of plants and the order of their appearance in time . The ...
... trees of temperate climates belong to this group . On referring to the geological table , it will be seen that there is a certain rough correspondence between the order of rank of plants and the order of their appearance in time . The ...
Pagina 16
... Devonian of Gaspé , when he met the late Professor Agassiz , and remarked that the specimen was the re- mains of a Devonian tree contemporaneous with his fishes of that age . " How I wish I 16 THE GEOLOGICAL HISTORY OF PLANTS .
... Devonian of Gaspé , when he met the late Professor Agassiz , and remarked that the specimen was the re- mains of a Devonian tree contemporaneous with his fishes of that age . " How I wish I 16 THE GEOLOGICAL HISTORY OF PLANTS .
Pagina 18
... trees . This would be quite in harmony with what is observed in the development of other plants in primitive geological times ; and a little later in this his- tory we shall see that there is evidence in the flora of the Silurian of a ...
... trees . This would be quite in harmony with what is observed in the development of other plants in primitive geological times ; and a little later in this his- tory we shall see that there is evidence in the flora of the Silurian of a ...
Pagina 23
... trees which Unger had described from the Erian of Thuringia , under the name Aporoxylon . * Later examples of more lax tissues from branches or young stems , and the elaborate examinations kindly undertaken for me by Professor Penhallow ...
... trees which Unger had described from the Erian of Thuringia , under the name Aporoxylon . * Later examples of more lax tissues from branches or young stems , and the elaborate examinations kindly undertaken for me by Professor Penhallow ...
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Termeni și expresii frecvente
Acrogens aërial roots Algæ allied America appear Archæopteris arctic areoles bark beds belong bituminous branches Brongniart bundles Calamites Canada Carboniferous Caulopteris cellular character clay climate coal coal-formation cones conifers Cordaites cycads cylinder Dadoxylon Dawson Demy 8vo deposits described Devonian dicotyledonous Eocene Erian Europe exogenous Fcap ferns flora formation forms fossil plants fronds fructification fruit Gaspé genera genus Geological Society Greenland Heer hemisphere Illustrations land Laramie leaf-bases leaf-scars leaves Lepidodendron Lepidophloios Lesquereux limestone Lower Carboniferous Lycopods macrospores medullary rays Mesozoic Middle Miocene modern northern Nova Scotia occur outer Palæozoic period Permian pines pinnules pith present probably Prof Psilophyton referred resemble Rhizocarps ribbed rocks sandstones scalariform Sequoia shales Sigillaria Silurian similar Small crown 8vo species specimens Sphenophyllum Sphenopteris Sporangites spore-cases spores sporocarps stems Sternbergia structure Tertiary thick tion tissue transverse tree-ferns trees trunks types Upper Cretaceous vascular scar vegetable wood woody
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