Source : Webster's Revised Unabridged Dictionary (1913)

Congenerous \Con*gen"er*ous\, a. [L. congener; con- + genus,
   generis, birth, kind, race. See {Genus}, and cf. {Congener}.]
   Allied in origin or cause; congeneric; as, congenerous
   diseases. [Obs.] --Sir T. Browne. -- {Con*gen"er*ous*ness},
   n. [Obs.] --Hallywell.

Source : WordNet®

congenerous
     adj : belonging to the same genus [syn: {congeneric}, {congenerical}]