The Origin of Floral Structures Through Insect and Other AgenciesKegan Paul, Trench, Trübner & Company, Limited, 1888 - 349 pagini |
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Pagina xv
... anthers ; method of fertilisation by " piston - action " ( b ) , nectary and direc- tion of insect - proboscis , etc. ... 413 50 51 ... 60 ... 64 12. Anatomy of the floral receptacle of Hellebore , showing the changes in orientation of ...
... anthers ; method of fertilisation by " piston - action " ( b ) , nectary and direc- tion of insect - proboscis , etc. ... 413 50 51 ... 60 ... 64 12. Anatomy of the floral receptacle of Hellebore , showing the changes in orientation of ...
Pagina xvi
... anthers are deve- loped instead of one ( a ) 24. Receptacular tube of Rose , bearing a leaf and a stipular sepal 25. Vertical section of the receptacular tube of Hawthorn , with supernumerary carpels arising from the summit ... 76 77 82 ...
... anthers are deve- loped instead of one ( a ) 24. Receptacular tube of Rose , bearing a leaf and a stipular sepal 25. Vertical section of the receptacular tube of Hawthorn , with supernumerary carpels arising from the summit ... 76 77 82 ...
Pagina xviii
... anther 65. Glumes of Lolium , both antheriferous and stigmatiferous 66. Ranunculus with a foliaceous sepal ... anthers of Sempervivum ... ... ... 76. Stigmatiferous and ovuliferous stamens of Begonia 289 290 291 292 292 ... 292 ...
... anther 65. Glumes of Lolium , both antheriferous and stigmatiferous 66. Ranunculus with a foliaceous sepal ... anthers of Sempervivum ... ... ... 76. Stigmatiferous and ovuliferous stamens of Begonia 289 290 291 292 292 ... 292 ...
Pagina xix
... anther - cells ... ... ... 85. Metamorphosed and foliaceous ovules of Mignonette ... PAGE 302 305 86. Metamorphosed and foliaceous ovules of Sisymbrium Alliaria 306 87. Tubular excrescence on the labellum of Cattleya , homologous with ...
... anther - cells ... ... ... 85. Metamorphosed and foliaceous ovules of Mignonette ... PAGE 302 305 86. Metamorphosed and foliaceous ovules of Sisymbrium Alliaria 306 87. Tubular excrescence on the labellum of Cattleya , homologous with ...
Pagina 3
... Anthers of the five Stamens superposed to the sepals ; the fourth being those of five Stamens super- posed to the petals . These two whorls of stamens together constitute the Androecium . Lastly , there are represented two GENERAL ...
... Anthers of the five Stamens superposed to the sepals ; the fourth being those of five Stamens super- posed to the petals . These two whorls of stamens together constitute the Androecium . Lastly , there are represented two GENERAL ...
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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