a mat of hyphae giving rise to short conidiophores closely packed together forming a bed-like mass.
A mass of closely clustered conidiophores and conidia not covered by fungal tissue, initially subcuticular or subepidermal but eventually exposed. (pl. acervuli) ( 15)
(pl. = acervuli): A subepidermal, saucer-shaped, asexual fruiting body producing conidia on short conidiophores.