The Geological History of PlantsD. Appleton & Company, 1892 - 294 pagini |
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Pagina
... Calamites Asterophyllites Dadoxylon • • 21 22 , 23 28 28 • 29 · 30 • 31 . · 33 34 36 • 37 · 40 49 · • 54 62 , 63 64 , 66 • 65 66 72 , 73 • 74 75 · 76 77 78 79 Cordaites Erian Fruits • Foliage from the Coal - formation.
... Calamites Asterophyllites Dadoxylon • • 21 22 , 23 28 28 • 29 · 30 • 31 . · 33 34 36 • 37 · 40 49 · • 54 62 , 63 64 , 66 • 65 66 72 , 73 • 74 75 · 76 77 78 79 Cordaites Erian Fruits • Foliage from the Coal - formation.
Pagina
... Calamites ( five Figures ) . 123-125 Ferns of the Coal - formation ( six Figures ) 126-129 Noeggerathia dispar 130 Cordaites . 131 Sternbergia Fruits of Cordaites , & c . Conifers of the Coal - formation ( four Species ) Trigonocarpum ...
... Calamites ( five Figures ) . 123-125 Ferns of the Coal - formation ( six Figures ) 126-129 Noeggerathia dispar 130 Cordaites . 131 Sternbergia Fruits of Cordaites , & c . Conifers of the Coal - formation ( four Species ) Trigonocarpum ...
Pagina 49
... Calamites , Psilo- phyton , Leptophleum , Lepidodendron , Cordaites , Sigillaria , Dadoxy- lon , Asterophyllites , Platyphyllum . sequent chapter , these curious little bodies were again reviewed. raised as to the share of spores and ...
... Calamites , Psilo- phyton , Leptophleum , Lepidodendron , Cordaites , Sigillaria , Dadoxy- lon , Asterophyllites , Platyphyllum . sequent chapter , these curious little bodies were again reviewed. raised as to the share of spores and ...
Pagina 50
... Calamites inornatus and Lepidodendron primævum , and I not unnaturally supposed that the Sporangites might be the fruit of the latter plant . I also noticed their resemblance to the spore - cases of L. corrugatum of the Lower ...
... Calamites inornatus and Lepidodendron primævum , and I not unnaturally supposed that the Sporangites might be the fruit of the latter plant . I also noticed their resemblance to the spore - cases of L. corrugatum of the Lower ...
Pagina 77
... Calamites radiatus ( Erian , New Brunswick ) . The history of the ferns in geological time is remark- ably different from that of the Lycopods ; for while the * " Journal of the Geological Society , " London , 1881 . " Sphenopteris ...
... Calamites radiatus ( Erian , New Brunswick ) . The history of the ferns in geological time is remark- ably different from that of the Lycopods ; for while the * " Journal of the Geological Society , " London , 1881 . " Sphenopteris ...
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Termeni și expresii frecvente
abundant Acrogens aërial roots Algæ allied America animal appear arctic areoles bark beds belong bituminous branches Brongniart Calamites Canada carbon Carboniferous Caulopteris cellular character clay climate coal coal-formation conifers Cordaites cycads Dadoxylon Dawson deposits described Devonian diameter dicotyledonous Eocene Europe exogenous fact ferns flora formation forms fossil fossil plants fronds fructification fruit Gaspé genera genus Geological Society graphite Greenland gymnospermous Heer hemisphere Journal known land land-plants Laramie Laurentian leaf-bases leaf-scars leaves Lepidodendron Lepidophloios Lesquereux limestone Lower Carboniferous Lycopods macrospores matter medullary rays Mesozoic Miocene modern Nematophyton northern Nova Scotia occur outer Palæozoic period Permian pines pinnules pith present preserved probably Prof Psilophyton referred remarkable resemble Rhizocarps rocks sandstones scalariform scars Sequoia shales Sigillaria Silurian similar species specimens Sphenophyllum Sporangites spore-cases spores sporocarps stems Sternbergia structure surface Tertiary thick tion tissue tree-ferns trees trunks types Upper Cretaceous vascular vegetable wood woody