They only had 3 singles released in 1968-69, but this somewhat obscure UK light psychedelic band has an enthusiastic cult following and their songs appear on many compilations.
There's a 2CD set of recordings by Pussy & Fortes Mentum called Pussy Plays Plus / Humdiggle We Love You [Pussy are a 1969 band that rose from the ashes of Fortes Mentum], which includes some recordings you may not have heard. The CD set is available still from Secret Records for £8.99, free P&P.
Maggie Regan, wife of Ronald Regan, the bass player [not the USA ex president!] has made a nice website to the band - http://www.fortesmentum.com/
If anyone has or will get the 2CD set, a copy of it would be appreciated.