The Origin of Floral Structures Through Insect and Other AgenciesKegan Paul, Trench, Trübner & Company, Limited, 1888 - 349 pagini |
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... CONDITIONS of EXISTENCE as they affect Animal Life . By KARL SEMPER . Third Edition . With 2 Maps and 106 Woodcuts . 56 . XXXII . GENERAL PHYSIOLOGY of MUSCLES and NERVES . By Prof. J. ROSENTHAL . Third Edition . With 75 Illustrations ...
... CONDITIONS of EXISTENCE as they affect Animal Life . By KARL SEMPER . Third Edition . With 2 Maps and 106 Woodcuts . 56 . XXXII . GENERAL PHYSIOLOGY of MUSCLES and NERVES . By Prof. J. ROSENTHAL . Third Edition . With 75 Illustrations ...
Pagina v
... conditions of life , or the ' monde ambiant , ' as the cause of change . ' " ' * In 1801 , Lamarck " attributed something to the direct action of the physical conditions of life " as the means of modification , " something to the ...
... conditions of life , or the ' monde ambiant , ' as the cause of change . ' " ' * In 1801 , Lamarck " attributed something to the direct action of the physical conditions of life " as the means of modification , " something to the ...
Pagina vi
... conditions , than on a tendency to vary , due to causes of which we are quite ignorant . " He had , however , previously said , “ Changed conditions of life are of the highest importance in causing variability . ... . It is not probable ...
... conditions , than on a tendency to vary , due to causes of which we are quite ignorant . " He had , however , previously said , “ Changed conditions of life are of the highest importance in causing variability . ... . It is not probable ...
Pagina x
... conditions as bringing about all sorts of changes in the vegetative system . He stops short of discussing floral ... conditions of life . " * We conclude , then , that the production of • · varieties is the result of the influence of the ...
... conditions as bringing about all sorts of changes in the vegetative system . He stops short of discussing floral ... conditions of life . " * We conclude , then , that the production of • · varieties is the result of the influence of the ...
Pagina xvi
... condition 21. Ovary , stamens , and stigmas of Aristolochia 22. Vertical sections of buds of Pyrus and Cotoneaster , showing degrees of adhesion or undifferentiated condition between the ovary and receptacular tube ...
... condition 21. Ovary , stamens , and stigmas of Aristolochia 22. Vertical sections of buds of Pyrus and Cotoneaster , showing degrees of adhesion or undifferentiated condition between the ovary and receptacular tube ...
Alte ediții - Afișează-le pe toate
The Origin of Floral Structures Through Insect and Other Agencies George Henslow Vizualizare completă - 1893 |
The Origin of Floral Structures Through Insect and Other Agencies George Henslow Vizualizare completă - 1888 |
Termeni și expresii frecvente
adaptation to insect androecium anemophilous anthers appear arrested atrophy autogamy axial axis bear become bracts calyx capsules carpellary carpels cause cells character chorisis cleistogamous cleistogamous flowers colour condition corolla crossed Darwin degeneracy degradation Demy 8vo diclinism differentiated fact female flowers fertile fertilisation fibro-vascular cords filaments floral whorls florets foliaceous Forms of Flowers Fourth Edition genera genus grains hermaphrodite heterostyled hypertrophy Illustrations insect agency insects intercrossing irregular irritation Journ Labiata latter leaf leaves less long-styled form male flowers marginal mature Müller nature normally observed occur Orchids origin ovary ovules ovuliferous pedicel perianth petaline petals petioles phyllotaxis pistil placentas pollen pollen-tubes Primula produced protandrous protogynous Ranunculus receptacular tube regard remarkable result seedlings seeds seen self-fertilisation self-fertilised plants sepaline sepals short-styled form Small crown 8vo species spiral stamens stigmas structure style superposed temperature Teratology Third Edition tion tissue usually visited weight whorls
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Pagina 30 - II. Physics and Politics ; or, Thoughts on the Application of the Principles of "Natural Selection " and " Inheritance
Pagina 23 - REYNOLDS, Rev. JW— The Supernatural in Nature. A Verification by Free Use of Science. Third Edition, Revised and Enlarged, Demy 8vo, 14^.
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Pagina 7 - COX, Rev. Sir GW, MA, Bart., and JONES, Eustace Hinton.— Popular Romances of the Middle Ages. Third Edition, in I vol. Crown Svo, 6s.
Pagina 21 - HDM SPENCE. Genesis. By the Rev. T. WHITELAW, MA With Homilies by the Very Rev. JF MONTGOMERY, DD, Rev. Prof. RA REDFORD, MA, LL.B., Rev. F. HASTINGS, Rev. W. ROBERTS, MA An Introduction to the Study of the Old Testament by the Venerable Archdeacon...
Pagina 26 - STRECKER- WISLICENUS.— Organic Chemistry. Translated and Edited, with Extensive Additions, by WR HODGKINSON, Ph.D., and AJ GREENAWAY, FIC Second and cheaper Edition. Demy 8vo, 12s. 6d. Suakin, 1885 ; being a Sketch of the Campaign of this year. By an Officer who was there.