This note is a continuation of the articles  and . In , trees with a given partition α = (a1; a2, …), where ai is the number of vertices (points) of valency (degree) i were enumerated. After the determination of the number of plane trees in , the number of planted plane trees with a given partition α was found explicitly in . In the present note, the number of plane trees with a given partition is expressed as a function of the number of planted trees with a given partition. The method, which is not new, consists of an application of the enumeration techniques of Otter  and Pólya ; it was used in  and also by Riordan .