Thalloidima physaroides 4438b

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Thalloidima physaroides, medullary hyphae after staining with ink-vinegar. The literature describes these hyphae as 'thick-walled'. It may be more accurate to say that the hyphae are surrounded by a thick sheath, but whatever the true interpretation of their structure, these 'thick-walled' hyphae are diagnostic for T. physaroides (when compared with T. sedifolium and T. opuntioides).

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith