The Origin of Floral Structures Through Insect and Other AgenciesKegan Paul, Trench, Trübner & Company, Limited, 1888 - 349 pagini |
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Pagina xv
... in orientation of the cords ... 13. Anatomy of the floral receptacle of Pelargonium , showing changes in the orientation , in the separation and in the union of the cords ... 65 FIGURE ... PAGE 68 14. Anatomy of the floral receptacle PAGE.
... in orientation of the cords ... 13. Anatomy of the floral receptacle of Pelargonium , showing changes in the orientation , in the separation and in the union of the cords ... 65 FIGURE ... PAGE 68 14. Anatomy of the floral receptacle PAGE.
Pagina 5
... union of parts of any , but of the same whorl . The original or ancestral condition of the parts composing every whorl is presumed , on the principles of evolution , to have been one of entire freedom ; so that the members were as ...
... union of parts of any , but of the same whorl . The original or ancestral condition of the parts composing every whorl is presumed , on the principles of evolution , to have been one of entire freedom ; so that the members were as ...
Pagina 10
... union of two pairs of opposite and decussate parts . 6 , 8 , 10 are merely the doubles of the preceding , and mostly represent two pairs of whorls or cycles blended together , thus forming one whorl , or so closely approximated as ...
... union of two pairs of opposite and decussate parts . 6 , 8 , 10 are merely the doubles of the preceding , and mostly represent two pairs of whorls or cycles blended together , thus forming one whorl , or so closely approximated as ...
Pagina 21
... union of their fibro - vascular 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 ...
... union of their fibro - vascular 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 ...
Pagina 33
... union is a result of close contact , and that the normal separation is not due to chorisis , but to a primitive freedom , which has been retained from a multistaminate condition . PENTAMEROUS WHORLS . - These are by far the commonest ...
... union is a result of close contact , and that the normal separation is not due to chorisis , but to a primitive freedom , which has been retained from a multistaminate condition . PENTAMEROUS WHORLS . - These are by far the commonest ...
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 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.
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