Colonies white, the reverse yellow, rapidly growing on BDA at 25 ° C. Sporangiophores poorly branched, erect or curved. Sporangia hyaline to yellowish, globose to subglobose, wall deliquescent, 58-65 μm, multisporate. Columellae elongated-conical, rare subglobose and ellipsoidal with lightly incrusted wall, 15–30 × 5.5–14.5 μm, majority with 15–20 × 5.0–8.5 μm; collar small or absent. Sporangiospores hyaline, smooth walled, 3.5–8 × 2–4.5 μm, ellipsoid and cylindrical to reniform, some irregular, with a droplet at each end. hlamydospores globose, 12.5–23 μm, subglobose, cylindrical and doliiform, 10–22.5 × 8–22 μm. Zygospores not observed.
Due to the lack of distribution I would suggest this species to be categorized as insufficient data (DD).
The species in known in 5 countries. In Brazil, it is known in 1 of the 26 states.
It is a rare species, only known in 5 countries and not frequently isolated.
Isolated from dung, soil, indoor air of refrigerator.
In Brazil, this species was recorded in the Atlantic Forest, a hotspot.
SCHIPPER, M. A. A. 1990. On certain species of Mucor with a key to all accepted species. Studies in Mycology 25: 1–53.
Nadson MMG, Philippov G. 1925. Une nouvelle Mucorinée. Mucor guilliermondii nov. sp. et ses forms-levures. Rev. Gén. Bot. 37: 450–463.