Interesting and seeing that Demoulin and Dring are european that would explain the synonomy in IF. Obviously, Guzman did not agree as he still uses the name and discribes Veligaster nitidum from the Virgin Islands in 2004.
DNA information seems to put Veligaster in the middle of the Scleroderma clade (see Lucan, et al.; Mycoscience (2007)48:66-69)
(both papers available online, just google)