A key to structural, physiological, and systematic botanyéditeur non identifié, 1835 - 80 sider |
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Side 40
... subclasses , groups , alliances , natural orders and genera of botanists have no real existence in nature , it follows that they have no fixed limits , and consequently that it is impossible to define them . 564. They are to be ...
... subclasses , groups , alliances , natural orders and genera of botanists have no real existence in nature , it follows that they have no fixed limits , and consequently that it is impossible to define them . 564. They are to be ...
Side 41
... subclasses , subclasses in classes . 570. The genera , orders , and classes may be considered as agreed upon by botanists . The other divisions are unsettled . 571. Hence the natural orders seldom follow in the same manner in the ...
... subclasses , subclasses in classes . 570. The genera , orders , and classes may be considered as agreed upon by botanists . The other divisions are unsettled . 571. Hence the natural orders seldom follow in the same manner in the ...
Side 43
... Subclasses are CLASS I. EXOGENÆ . Complete Plants ;. Exogens ( 80. ) with their seeds in an ovary Exogens with naked seeds having spiral vessels Propagated by sexes Endogens ( 80. ) without spiral vessels , or with scarcely any ...
... Subclasses are CLASS I. EXOGENÆ . Complete Plants ;. Exogens ( 80. ) with their seeds in an ovary Exogens with naked seeds having spiral vessels Propagated by sexes Endogens ( 80. ) without spiral vessels , or with scarcely any ...
Side 44
John Lindley. The Subclasses are CLASS I. EXOGENÆ . Complete Plants ; with both their calyx and corolla perfect ; or ... SUBCLASS I. POLYPETALE . These comprehend the following groups : — 1. ALBUMINOSA . Embryo very considerably shorter ...
John Lindley. The Subclasses are CLASS I. EXOGENÆ . Complete Plants ; with both their calyx and corolla perfect ; or ... SUBCLASS I. POLYPETALE . These comprehend the following groups : — 1. ALBUMINOSA . Embryo very considerably shorter ...
Side 47
... subclass , and that the mutual affinities of the alliances may be demonstrated . Take Anonales and Ranales for the centre of the circumference of a circle composed of the six foregoing alliances : and the relative position of the ...
... subclass , and that the mutual affinities of the alliances may be demonstrated . Take Anonales and Ranales for the centre of the circumference of a circle composed of the six foregoing alliances : and the relative position of the ...
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3d Edit abortive absent Acrid Acrogens affinities albumen Alliance Anthers apex Apocarpous Aromatic arranged Astringent axils axis bark base botanists Botany bracts buds called calyx carpels Carpels solitary cells cellular tissue characters cloth coloured concentric layers connected consists corolla cotyledons dehiscence developed Dicotyledonous dissepiments Ditto elongation embryo Endogens Engravings Epigynosæ epigynous Estivation Exogenous plants Fcap floral envelopes flower-buds Flowers unisexual formed Fruit eatable genera germination Gymnospermæ hilum HISTORY hypogynous imbricated indehiscent indusium inflorescence integument involucre lamina latter leaf leaf-buds leaves Maps margins medullary system membranous MEMOIRS Menispermaceæ modifications monopetalous natural nucleus one-celled operculum organs ovary ovule oxygen parietal pedicel peduncle pericarp petals petiole pistil pith Pittosporales placenta Plates Polyandrous polypetalous radicle Rhizantheæ root Seeds sepals separate sometimes spiral vessels Stamens Stamens distinct stem stigma stipules stomates style SUBCLASS succulent sup.-roy Syncarpous Thecæ tonic Tubiferosæ vascular vascular tissue veins vesicles Vols whorl wood woody tissue
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