Vessel Grouping in Dicotyledon Wood : Significance and Relationship to Imperforate Tracheary Elements

@inproceedings{Carlquist2017VesselGI,
  title={Vessel Grouping in Dicotyledon Wood : Significance and Relationship to Imperforate Tracheary Elements},
  author={Sherwin Carlquist},
  year={2017}
}
-A hitherto unappreciated correlation exists between nature of vessel grouping and nature of imperforate tracheary elements in wood of dicotyledons at large: families and genera with true tracheids (large fully bordered pits common on both radial and tangential walls) have solitary vessels. Presence of true tracheids as a subsidiary conductive system is hypothesized to render vessel grouping a superfluous adaptation. Vessel grouping does occur to various degrees in taxa with fiber-tracheids or… CONTINUE READING

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