| Name | Agaricus castus MacOwan |
| Authorship | MacOwan |
| Rank | Species |
| Placed in | Agaricus |
| GUID | urn:lsid:indexfungorum.org:names:486140 |
| Citation | 1881 Grevillea 9(no. 51): 114 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Agaricus castus MacOwan |
| Identification made in | [no date] (1) |