>I'd appreciation citations to a clear >and insightful paper on the problem of reticulations to cladistic >analysis. My 1st year students would appreciate it - they've hardly Do not know if you will find it insightful but can probably help: Skala Z. & Zrzavy J. 1994 (1995) Phylogenetic reticulations and cladistics: discussion of methodological concepts Cladistics 10 305-313 Best! Zdenek Skala