The Origin of Floral Structures Through Insect and Other AgenciesKegan Paul, Trench, Trübner & Company, Limited, 1888 - 349 pagini |
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Pagina xv
... cords originate those of the rest of the floral organs ( see fig . 15 , p . 71 ) ... ... ... ... ... ... ... 9 ... cords ... 13. Anatomy of the floral receptacle of Pelargonium , showing changes in the orientation , in the separation and ...
... cords originate those of the rest of the floral organs ( see fig . 15 , p . 71 ) ... ... ... ... ... ... ... 9 ... cords ... 13. Anatomy of the floral receptacle of Pelargonium , showing changes in the orientation , in the separation and ...
Pagina xvi
... cords , etc. 15. Anatomy of the floral receptacle of Campanula medium , showing the distribution of the cords , etc. ( see fig . 8 , p . 43 ) 71 16. Origin and development of the ovule in Beta ... 223 ... 73 ... 75 17. Carpels of Acer ...
... cords , etc. 15. Anatomy of the floral receptacle of Campanula medium , showing the distribution of the cords , etc. ( see fig . 8 , p . 43 ) 71 16. Origin and development of the ovule in Beta ... 223 ... 73 ... 75 17. Carpels of Acer ...
Pagina 7
... cords , three for each whorl of the perianth . Each of these cords can give rise by branching , first , to a whorl of stamens and subsequently to a whorl of carpels , furnishing at least two marginal and one dorsal cord for each of the ...
... cords , three for each whorl of the perianth . Each of these cords can give rise by branching , first , to a whorl of stamens and subsequently to a whorl of carpels , furnishing at least two marginal and one dorsal cord for each of the ...
Pagina 21
... cords ; so that they become ar- ranged in superposition instead . of being alternate , or vice versa . Thus , in Garidella ( Fig . 4 ) ( with which Helleborus fœtidus partly agrees ) , the sepals and petals are both arranged , and arise ...
... cords ; so that they become ar- ranged in superposition instead . of being alternate , or vice versa . Thus , in Garidella ( Fig . 4 ) ( with which Helleborus fœtidus partly agrees ) , the sepals and petals are both arranged , and arise ...
Pagina 23
... cords of the stamens and carpels are not inde- pendent as they are in the " leaf traces " of an axial cylinder , where the cord or cords belonging to each leaf are simply intercalated side by side with those of the leaves most nearly ...
... cords of the stamens and carpels are not inde- pendent as they are in the " leaf traces " of an axial cylinder , where the cord or cords belonging to each leaf are simply intercalated side by side with those of the leaves most nearly ...
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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