Fungi with "doubly reflective walls"

[herewego]

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So UWORLD is pretty inconsistent about which fungus this actually describes (I have test question #s to prove it)

UWORLD has described both coccidiodes and blastomyces with "doubly reflective walls" as pretty much diagnostic.

Which one is it?

EDIT: Nevermind, blasto is "doubly refractive" and Coccidio is "double reflective".....

Any help would be appreciated.