Then any mixing provided opportunities for more varieties of fungi.

This seems to have the nain cause of the Queen Charlotte's problems with dry rot as she had seasoned English oak, unseasoned English oak, Canadian oak, pitch pine and English fir.

The page linked below discusses the Queen Charlotte (at the top of the page), then goes on to discuss ships of other navies and the problems of dry rot. It it a Quarterly Review from 1813, so an issue "well known".

Apparently there is a list for the Royal Navy of each ship's status with respect to dry rot in William Layman's Precursor to an Exposé on Forest Trees and Timber published in 1813. (While on Google, I can not allowed to "see" it.)

Enjoy. - R