Click on a term to go to the online illustrated glossary. Many terms include an image (click on “eye” icon) and a pronunciation guide (click on “speaker” icon). The linked word should appear at the top of the page unless it is at the end of a Glossary section (A-D, E-H, I-M, N-R, S-V, W-Z).
binomial, Latin
bud
center of origin
cultivar
disease
disease cycle
disease triangle
flagellum (pl. flagella)
genus
germ theory
hypha (pl. hyphae)
Koch’s postulates
lesion
mating types
parasite
pathogen
pathogenicity
pathology
resistant
saprophyte
species
specific epithet
spontaneous generation, theory of
sporangium (pl. sporangia)
spore
susceptible
tuber
vegetative propagation
zoospore