⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-35209444, and has not been changed.
Ptychanthus mamillilobulus
is a synonym
of Spruceanthus mamillilobulus
This name is a synonym of Spruceanthus mamillilobulus .
The record derives from Tropicos which reports it as a synonym (record 35209444) with original publication details: Symb. Sin. 5: 44 44 1930.