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Elementary Notes on the Reproduction of Angiosperms (Classic Reprint)
- Item No : 404965721125
- Condition : Brand New
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- Seller : forgottenbooksuk
- Current Bid : US $18.39
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* Item Description
Excerpt from Elementary Notes on the Reproduction of Angiosperms (Classic Reprint)
In higher floral types, some of the original androecial members are adapted as coloured laminae (petals of the corolla), and the outer perianth-members are then distinguished as the sepals of the calyx. The corolla-petals are normally coloured' (other than green); as the sepals are normally green, but not invariably so; the coloured condition may be distinguished as petaloid in calyx or perianth. Symmetry of the construction, primarily centric (radial, Regular, Actino morphic); in specialized types eccentric (irregular, Dorsiventral, Zygomorphic). In extreme cases such zygomorphic flowers are orientated with the vertical, geotropically, in correlation with visitation by similarly orientated insects, as Bees.
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