R. nigricans may refer to:
- Rhizopus nigricans, the breadmold, a harmless mold species known to grow on bread
- Russula nigricans, the blackening brittlegill or blackening russula, a gilled mushroom species found in woodland in Europe
See also
edit
This disambiguation page lists articles associated with the same abbreviated species scientific name.
If an internal link led you here, you may wish to change the link to point directly to the intended article.
If an internal link led you here, you may wish to change the link to point directly to the intended article.