From the second edition (1989):
fimicolous, a.
(fɪˈmɪkələs) [f. L. fim-us dung + col-ĕre to inhabit + -ous.]


Inhabiting dung.

1874 Cooke Fungi (1875) 245 Only seven or eight‥do not occur on dung, whilst fifty-six are fimicolous.