Phylogenetic analysis provides a rational basis for comparative studies of phloem structure and phloem loading. Although several types of minor vein companion cell have been identified, and progress ...

For over half a century, Botanical Review has been a leading international journal noted for its in-depth articles on a broad spectrum of botanical fields. Systematics, phytogeography, cladistics, ...

R. D. PRESTON (Chronica Botanica, 7, 414; 1943) points out that there is now considerable scope for the botanist, and especially the biophysicist, to make his contribution to the knowledge of the fine ...