| Name | Microthamnium mauiense Brotherus | 
| Authorship | Brotherus | 
| Rank | Species | 
| NomenclaturalStatus | NomLeg | 
| Placed in | Microthamnium | 
| Citation | 1904 Bull. Soc. Bot. Ital. 1904: 20 | 
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Microthamnium mauiense Brotherus | 
| Identification made in | [no date] (1) | 
