The Collaborative International Dictionary of English v.0.48:

Erythrophyll \E*ryth"ro*phyll\, Erythrophyllin
\Er`y*throph"yl*lin\, n. [Gr. 'eryqro`s red + ? leaf.] (Physiol.
   Bot.)
   The red coloring matter of leaves, fruits, flowers, etc., in
   distinction from chlorophyll.
   [1913 Webster]