The Origin of Floral Structures Through Insect and Other AgenciesKegan Paul, Trench, Trübner & Company, Limited, 1888 - 349 pagini |
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Pagina xv
... alternate arrangements ... PAGE 3 11 15 ... 3. Diagrams of floral æstivations , showing the passage from the two - fifth or quincuncial , to the contorted ... 4. Diagram of flower of Garidella , with stamens superposed to petals ...
... alternate arrangements ... PAGE 3 11 15 ... 3. Diagrams of floral æstivations , showing the passage from the two - fifth or quincuncial , to the contorted ... 4. Diagram of flower of Garidella , with stamens superposed to petals ...
Pagina 9
... alternates in position with the whorl immediately above and below it . The second system is when only one leaf occurs at a node ; the leaves are then said to be alternate . The leaves are then arranged on a continuous spiral line , and ...
... alternates in position with the whorl immediately above and below it . The second system is when only one leaf occurs at a node ; the leaves are then said to be alternate . The leaves are then arranged on a continuous spiral line , and ...
Pagina 10
... alternate arrangements . Now , opposite leaves present a more primitive type than alternate ; that this is so , is not only reasonable from the primordial condition of the cotyledons of Dicotyledons , but the transition from an opposite ...
... alternate arrangements . Now , opposite leaves present a more primitive type than alternate ; that this is so , is not only reasonable from the primordial condition of the cotyledons of Dicotyledons , but the transition from an opposite ...
Pagina 11
... alternate arrangements is the order in which the opposite leaves separate so as to assume successive positions on the continuous spiral line passing through their insertions , when they have become alternate . This will be understood ...
... alternate arrangements is the order in which the opposite leaves separate so as to assume successive positions on the continuous spiral line passing through their insertions , when they have become alternate . This will be understood ...
Pagina 13
... alternate and oppo- site leaves respectively , but to discover what may have been the interfering causes which have modified what would have been the immediate effects of the fundamental laws of phyllotaxis . Thus , it will be found ...
... alternate and oppo- site leaves respectively , but to discover what may have been the interfering causes which have modified what would have been the immediate effects of the fundamental laws of phyllotaxis . Thus , it will be found ...
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^.
Pagina 30 - XI. Animal Mechanism : a Treatise on Terrestrial and Aerial Locomotion. By Professor EJ Marey. With 117 Illustrations. Third Edition. Crown 8vo, 5^.
Pagina 17 - NEWMAN, JH, DD— Characteristics from the Writings of. Being Selections from his various Works. Arranged with the Author's personal Approval.
Pagina 29 - FIRST BOOK OF BOTANY. Designed to Cultivate the Observing Powers of Children. With 300 Engravings. New and Cheaper Edition. Crown 8vo.
Pagina 11 - HAWEIS, Rev. HR, MA— Current Coin. Materialism— The Devil — Crime — Drunkenness — Pauperism — Emotion — Recreation —The Sabbath.
Pagina 16 - MARKHAM, Capt. Albert Hastings, RN— The Great Frozen Sea : A Personal Narrative of the Voyage of the Alert during the Arctic Expedition of 1875-6.
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.