as an example, the loosely delimited C. maxima interdigitates with the other members of the Maxima clade (C. bacsonenses and C. obtusa) and is resolved as paraphyletic in the cpDNA analyses.
several clearly related species have been described including C.aequatirialis, and C gigas Hahn ex Hodel, C. kiriwonses Hodel and C. ochlandra
Hance but,for lack of clearly defined morphological difference among them, all of these taxa were lumped in C. maxima for the current study.
Resurrection of one or more of these described species might possible alleviate the problems of paraphyly in this clade but the lack of convincing morphological