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n.1.(Bot.) A spore borne at the extremity of the cells of fructification in fungi.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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The organism grows quickly as a white colony on that pigments with age secondary to gray to brown conidia (1) Cleistothecia are produced which are 2-3 micrometers wide with thick walls and house asci with 8 acrospores. (1) Scedosporium apiospermum have similar appearing colonies, but differ from Pseudallescheria boydii by their singly produced conidia, bundled appearing hyphae, and lack of acrospores.