A group of organisms formerly classified among the fungi (water moulds) but with stronger affinities to algae, having cell walls containing cellulose rather than chitin. There are over 100 species, many of which are plant pathogens.
- Phytophthora alni,
- Phytophthora austrocedrae,
- Phytophthora cactorum and P. syringae,
- Phytophthora kernoviae,
- Phytophthora lateralis,
- Phytophthora pseudosyringae,
- Phytophthora ramorum
This definition is abridged from A – Z of tree terms: A companion to British arboriculture.
Read the preface. Order the book.