physiophyly

from The Century Dictionary.

• noun The tribal history of function; that branch of phylogeny which treats of function alone, without reference to form, the tribal history or phylogeny of which latter Haeckel calls morphophyly.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Biol.) The tribal history of the functions, or the history of the paleontological development of vital activities, -- being a branch of phylogeny. See morphophyly.