The Various Contrivances By Which Orchids Are Fertilized By Insects
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The Various Contrivances By Which Orchids Are Fertilized By Insects
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Author : Charles Darwin
language : en
Publisher:
Release Date : 1889
The Various Contrivances By Which Orchids Are Fertilized By Insects written by Charles Darwin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1889 with Fertilization of plants categories.
The Works Of Charles Darwin Volume 17
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Author : Charles Darwin
language : en
Publisher: NYU Press
Release Date : 1989-02
The Works Of Charles Darwin Volume 17 written by Charles Darwin and has been published by NYU Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989-02 with Biography & Autobiography categories.
Charles Robert Darwin (1809–1882) has been widely recognized since his own time as one of the most influential writers in the history of Western thought. His books were widely read by specialists and the general public, and his influence had been extended by almost continuous public debate over the past 150 years. New York University Press's new paperback edition makes it possible to review Darwin's public literary output as a whole, plus his scientific journal articles, his private notebooks, and his correspondence. This is complete edition contains all of Darwin's published books, featuring definitive texts recording original pagination with Darwin's indexes retained. The set also features a general introduction and index, and introductions to each volume.
The Various Contrivances By Which Orchids Are Fertilised By Insects
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Author : Charles Darwin
language : en
Publisher:
Release Date : 1889
The Various Contrivances By Which Orchids Are Fertilised By Insects written by Charles Darwin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1889 with Fertilization of plants categories.
The Various Contrivances By Which Orchids Are Fertilized By Insects
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Author : Charles Darwin
language : en
Publisher:
Release Date : 1888
The Various Contrivances By Which Orchids Are Fertilized By Insects written by Charles Darwin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1888 with categories.
On The Various Contrivances By Which British And Foreign Orchids Are Fertilised By Insects
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Author : Charles Darwin
language : en
Publisher: London : J. Murray
Release Date : 1862
On The Various Contrivances By Which British And Foreign Orchids Are Fertilised By Insects written by Charles Darwin and has been published by London : J. Murray this book supported file pdf, txt, epub, kindle and other format this book has been release on 1862 with Gardening categories.
This 1862 publication describes the flower structure of orchids and their pollination to illustrate aspects of Darwin's evolutionary theory.
The Various Contrivances By Which British And Foreign Orchids Are Fertilized By Insects
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Author : Charles Darwin
language : en
Publisher:
Release Date : 1862
The Various Contrivances By Which British And Foreign Orchids Are Fertilized By Insects written by Charles Darwin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1862 with Fertilization of plants by insects categories.
Various Contrivances By Which Orchids Are Fertilised By Insects
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Author : CHARLES. DARWIN
language : en
Publisher:
Release Date : 2018
Various Contrivances By Which Orchids Are Fertilised By Insects written by CHARLES. DARWIN and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.
On The Various Contrivances By Which British And Foreign Orchids Are Fertilised By Insects And On The Good Effects Of Intercrossing
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Author : Charles Darwin
language : en
Publisher: Theclassics.Us
Release Date : 2013-09
On The Various Contrivances By Which British And Foreign Orchids Are Fertilised By Insects And On The Good Effects Of Intercrossing written by Charles Darwin and has been published by Theclassics.Us this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-09 with categories.
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1862 edition. Excerpt: ... ably run into the same ovarian group: thus the vessels supplying the upper sepal, the Fig. xxxii. Upper or posterior sepal. Labellum. Section Of The Flower Of An Orchid. The little circles show the position of the spiral vessels S S. Stigmas; Sr, stigma modified into the rostellum. Ai. Fertile anther of the outer whorl; A 2 A3, anthers of the same whorl comhined with the lower petal, forming the labellum. ai 02. Kudimentary anthers of the inner whorl (fertile in Cypripedium), generally forming the clinandrum; 03, third anther of the same whorl, when present, forming the front of the column. fertile anther (A 1), and the upper pistil or stigma (i. e. rostellum S r), all unite and form the posterior ovarian group. Again, the vessels supplying one of the lower sepals, the corner of the labellum, and one of the two stigmas (S), unite and form the antero-lateral group; and so with all the other vessels. Hence, if the existence of groups of spiral vessels can be trusted, and Dr. Hooker informs me that he has never known them to speak falsely, the flower of an Orchid certainly consists of fifteen organs, in a much modified and confluent condition. "We see three stigmas, with the two lower ones generally confluent, and with the upper one modified into the rostellum. We see six stamens, arranged in two whorls, with one alone (A 1) generally fertile. In Cypripedium, however, two stamens of the inner whorl (a 1 and a 2) are fertile, and in other Orchids these two are represented in various ways more plainly than the remaining stamens. The third stamen of the inner whorl (o 3), when its vessels can be traced, forms the front of the column: Brown thought that it often formed a medial excrescence, or ridge, cohering to the labellum; or, in the case of...
The Various Contrivances By Which Orchids Are Fertilised By Insects
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Author : Darwin Charles
language : en
Publisher:
Release Date : 2018-12-12
The Various Contrivances By Which Orchids Are Fertilised By Insects written by Darwin Charles and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-12-12 with categories.
On The Various Contrivances By Which British And Foreign Orchids Are Fertilised By Insects
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Author : Charles Darwin
language : en
Publisher: BoD – Books on Demand
Release Date : 2022-05-15
On The Various Contrivances By Which British And Foreign Orchids Are Fertilised By Insects written by Charles Darwin and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-05-15 with Fiction categories.
Reprint of the original, first published in 1862.