Two morphologically distinct classes of epidermal trichomes, termed simple and branched hairs, are shown to occur in Azolla caroliniana Willd. leaf cavities. The two hair types have significantly ...
This is a preview. Log in through your library . Abstract A study has been made of the cytology of the heterocysts of Anabaena cylindrica Lemm. at different stages during the growth of this alga in ...
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This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...
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