South African Flowering Plants: For the Use of Beginners, Students and TeachersLongmans, Green, and Company, 1903 - 287 páginas |
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Página 20
... sepals are coherent . The smaller brackets stand for the petals , which are also coherent . The black spots represent the anthers , and the central figure shows that the ovary has two cells. 20 SOUTH AFRICAN FLOWERING PLANTS .
... sepals are coherent . The smaller brackets stand for the petals , which are also coherent . The black spots represent the anthers , and the central figure shows that the ovary has two cells. 20 SOUTH AFRICAN FLOWERING PLANTS .
Página 52
... represent two families in which the stamens are quite free from the corolla . Receptacular Tube . - The third peculiarity among the changes of structure in flowers resides in a peculiar growth of the receptacle . This end of the flower ...
... represent two families in which the stamens are quite free from the corolla . Receptacular Tube . - The third peculiarity among the changes of structure in flowers resides in a peculiar growth of the receptacle . This end of the flower ...
Página 57
... represents a male flower . These degrada- tions are regarded in most cases as indicative of their having descended ... representing the earliest stages , when Nature had not yet contrived to make either a corolla or calyx . Such , e.g. ...
... represents a male flower . These degrada- tions are regarded in most cases as indicative of their having descended ... representing the earliest stages , when Nature had not yet contrived to make either a corolla or calyx . Such , e.g. ...
Página 58
... representing ancestral states , when they doubtless were possessed of perfect functions . Thus a remnant of a pistil often exists in male flowers . To try and solve this problem we must observe what goes on in Nature . The first thing ...
... representing ancestral states , when they doubtless were possessed of perfect functions . Thus a remnant of a pistil often exists in male flowers . To try and solve this problem we must observe what goes on in Nature . The first thing ...
Página 73
... represent the word , and free carpels , constituting an apocarpous pistil . All parts of the flower are perfectly separate or free . When the pistil becomes a fruit , the sepals , petals , and stamens fall off or are deciduous ; but the ...
... represent the word , and free carpels , constituting an apocarpous pistil . All parts of the flower are perfectly separate or free . When the pistil becomes a fruit , the sepals , petals , and stamens fall off or are deciduous ; but the ...
Otras ediciones - Ver todas
South African Flowering Plants: For the Use of Beginners, Students and Teachers George Henslow Sin vista previa disponible - 2015 |
South African Flowering Plants; For the Use of Beginners, Students and Teachers George Henslow Sin vista previa disponible - 2018 |
South African Flowering Plants; For the Use of Beginners, Students and Teachers George Henslow Sin vista previa disponible - 2015 |
Términos y frases comunes
achenes adherent anther-cells anthers B.Sc base blade BOTANY bracts bulbs called calyx Cape capsule carpels cells CHEMISTRY coherent College Coloured common corolla cotyledons Crown 8vo cultivated D.Sc Description drupe ELEMENTARY embryo endosperm Engineer female flower filaments five sepals fleshy floral florets fruit Fruit-Capsule genera genus glands glumes Green grow hairs Herbs honey honey-glands Illus Illustrations inferior inflorescence insects irregular leaf leaves Lecturer LL.D lobes Lond London male flower orchids order contains ovary ovary-cell ovules Ox'alis Pelargonium perianth pericarp petals petiole PHYSIOLOGY pistil placentas plants Plates pollen PRACTICAL Professor published by Longmans R. A. PROCTOR receptacle receptacular tube roots round Royal 8vo Scientific Works published section of flower seed seen sepals sheath showing shrubs South Africa species in South stalk stamens stem stigmas structure Students style Text three stamens trations TREATISE trees tribes Vertical section whorl yellow
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