| Name | Maxillaria umbratilis L. O. Williams |
| Authorship | L. O. Williams |
| Rank | Species |
| Placed in | Maxillaria Ruiz & Pavon |
| GUID | urn:lsid:ipni.org:names:643877-1 |
| Citation | 1941 Ann. Missouri Bot. Gard. 28(4): 425 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Maxillaria umbratilis L. O. Williams |
| Identification made in | [no date] (2) |
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