Asher’s Guide to botanical periodicals is a 3-weekly printed announcement of articles published in more than five thousand selected periodicals, in the field of: anatomy bibliography botanical history cytology dendrology ecology economic botany evolution floristics horticulture hydrobiology limnology medical mycology microbiology morphology palaeobotany palynology personalia pharmaceutical botany phytochemistry phytogenetics phytogeography plant physiology plant taxonomy toxicology Symposium and Congress Proceedings also to be included in the journal. An author index and plant name index taken from the titles of the articles will be added annually.