Stem apices of Anacharis densa were fixed, sectioned at 40 g, and stained in Feulgen and in ruthenium red. The three-dimensional shapes of 400 cells in various stages of division in the interior of ...

I SHOULD esteem it as a favour if you would allow me to ask, through the medium of NATURE, if there be any published account of observations, confirmatory or otherwise, of Mr. Wenham's notes on the ...

Rhodora is a peer-reviewed journal of botany devoted primarily to the flora of North America. Monographs or scientific papers and notes concerned with biogeography, conservation biology, ecology, ...

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 ...