Just beat me to it - I have arrived back home to my reference books. For anyone who feels they may have a lot of pottery marks to identify, I would again recommend Miller's Pottery and Porcelain marks by Gordon Lang. (Constantly updated - mine is 2007.)  It allows searching for marks not only by name or initials but also by what they call "devices" - ie designs. This falls into the Devices - Plants, Flowers and Trees category - there it is, page 257, 4th one down, - many hours of Googling saved.