Plural form of autobasidium; multiple fungal structures that directly produce spores without cell division.
Latin plural of autobasidium, following the -ium/-ii pattern common in scientific nomenclature borrowed from Latin. This form is used in mycological texts when discussing multiple such structures.
Scientific plurals like this one show how English borrows directly from Latin—scientists loved the prestige and precision of classical languages, so fungi get Latin grammar even in English textbooks.
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