This name is a synonym of Isoetes orcuttii A.A. Eaton.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26604803) with original publication details: Fern Allies 253 1905.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:130579-2.
This name was in version 1 of The Plant List, record tro-26604803, and has not been changed.