This name is a synonym of Isoetes bolanderi Engelm..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26604521) with original publication details: Amer. Naturalist 8(4): 214 1874.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:130485-2.
This name was in version 1 of The Plant List, record tro-26604521.