Origin Of A Land Flora

Author: F. O. (Frederick Orpen) 1855-194 Bower
Publisher: Wentworth Press
ISBN: 9781371782207
Size: 37.50 MB
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This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.

The Origin Of A Land Flora

Author: Bower F O (Frederick Orpen 1855-1948
Publisher: Hardpress Publishing
ISBN: 9781314293791
Size: 25.38 MB
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Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.

Bryophyte Biology

Author: A. Jonathan Shaw
Publisher: Cambridge University Press
ISBN: 9780521667944
Size: 26.16 MB
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Origin. and. phylogenetic. relationships. of. bryophytes. 4.1 Introduction The
origin of a land flora during the Upper Ordovician-Lower Silurian border (± 440
millions years ago) represents a significant evolutionary event in the history of life
. The subsequent evolution of a diverse autotrophic land flora created the
conditions necessary for the diversification of a terrestrial heterotrophic fauna (
Behrensmeyer et al. 1992). Today the land flora comprises roughly 300000
species distributed ...

Conquest Of Land And Evolutionary Patterns In Early Land Plants

Author: Pran Nath Mehra
Size: 25.54 MB
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Lam (1957) has rightly remarked that Greguss's views are based on incomplete
knowledge of the morphology of vascular plants, both living and fossil. In recent
years polyphylesis in the origin of land plants has been supported by three well
known palaeobotanists. Andrews (1956) on the basis of the occurrence of two
peculiar fossils possibly of marine algal ancestory, Nematothallus and
Crocalophyton, the latter with peculiar tra- cheid like conducting system*, and
others with cuticle ...

The Chain Of Life In Geological Time A Sketch Of The Origin And Succession Of Animals And Plants

Author: Sir John William Dawson
Publisher: Library of Alexandria
ISBN: 1465541942
Size: 10.88 MB
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It is probable that these discoveries represent merely a small proportion of the
plants actually existing in the Silurian period. All the deposits of this age at
present known to us are marine; and most of them were probably formed at a
distance from land, so that it is little likely that land plants could find their way into
them. At any time the discovery of an estuarine or lacustrine deposit of Silurian
age might wonderfully extend our knowledge of this ancient flora. The Devonian
or Erian age, ...