This name is a synonym of Impatiens mannii var. adenopus N. Hallé.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 3100115) with original publication details: Bot. Jahrb. Syst. 43: 108 1909.
This name was in version 1 of The Plant List, record tro-3100115.