Encyclopedia of Plant Anatomy - Handbuch der Pflanzenanatomie
Encyclopedia of Plant Anatomy (formerly: Handbuch der Pflanzenanatomie) is a book series covering all aspects of plant anatomy and pathology. The initial volumes of the series were in German, while more recent volumes are all in the English language.
The volumes are internally consistent and either treat functional units (e.g. plant hair, seeds) or provide detailed information on the the anatomy and histology of a group of plants, or deal with general principles (e.g.Pathological and Regenerative Plant Anatomy).
  The series is subdivided as follows:
  Vol. I-III: Cytology
  Vol. IV-V:  Anatomy of individual tissues 
  Vol. VI-VII: Cryptogam anatomy
  Vol. VIII-X: Histology of spermatophytes
  Vol. XI-XII: Anatomy of phylogenetically important plant groups
  Vol. XIII-XIV: Ecological, experimental and pathological anatomy