This name is a synonym of Mimulus guttatus subsp. micranthus (A. Heller) Munz.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50084314) with original publication details: Ann. Missouri Bot. Gard. 11(2–3): 331 1924.
⥇ A cross-taxon basionym link was ignored while processing this record,
see Mimulus micranthus A. Heller.
This name was in version 1 of The Plant List, record tro-50084314.