As nouns the difference between isidium and psidium
is that isidium is (lichenology) a vegetative reproductive structure present in some lichens; an outgrowth of the thallus surface, usually with a columnar structure, and consisting of both fungal hyphae and algal cells while psidium is (botany) any member of the genus psidium of guava plants.
isidium
English
Noun
(
isidia)
(
wikipedia isidium)
(lichenology) A vegetative reproductive structure present in some lichens; an outgrowth of the thallus surface, usually with a columnar structure, and consisting of both fungal hyphae and algal cells. psidium
Noun
(
en noun)
(botany) Any member of the genus Psidium of guava plants.