Pseudothalline margin

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pseudothalline margin (noun, pl. pseudothalline margins;ascocarp term) – an irregular margin-like rim of thalline origin; (1) in immersed lecideine apothecia referring to the areole that immediately surrounds the disk (e. g., Rhizocarpon lecanorinum or certain species of Buellia); or (2) a false thalline margin, an irregular rim of thalline material that resembles a thalline margin, e. g., in certain species of Buellia s. l. (sect. Diplotomma). Related terms: thalline collar; thalline veil. This is:part of ascocarp.

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