Could you get some pics of the base and oral disc? That would help in determination of type.
I have bunches of ricordias, a few miscellaneous discosoma(stopped searching for these once I got into ricordea) and some really nice and some very rare leathers, like pulsing sinularia, ORA green polyp toadstool, darker(but not Tyree) green polyp toadstool frags. I just need to ID the type, because some carpets are very hard to keep and I also do not want an Atlantic type. I'll do some leg work and find out, but the above asked for pictures would be a huge help.