In the came of Cribbage any two pairs is called a Morgan's Orchard. I was taught this 50 years ago by my father. I asked him if he knew where it came from and he said that he had learned it during the 2nd World War and he thought that it had English origins. Refer also http://www.karlsforums.com/forums/viewthread.php?tid=9321 - there is a reference to it there.