Journal
PLANT SYSTEMATICS AND EVOLUTION
Volume 252, Issue 1-2, Pages 49-61Publisher
SPRINGER WIEN
DOI: 10.1007/s00606-004-0281-5
Keywords
Calliergonaceae; cladistics; phylogeny; ITS; atpB-rbcL spacer; trnL (UAA) 5 ' exon-trnF (GAA) region; morphology; mosses
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Phylogeny of the Calliergonaceae is reconstructed based on nuclear and chloroplast sequence data, and morphology. Depending on treatment of insertions and deletions, the total number of informative characters was 194 or 163. The study yielded good support for two major clades, one with Hamatocaulis, Scorpidium, and possibly Hygrohypnum ochraceum (Wils.) Loeske, and one with Calliergon, Loeskypnum, Straminergon, and Warnstorfia. Inclusion of H. ochraceum in the ingroup increased tree length, markedly decreased consistency and retention indices, and decreased support for the structure of the Hamatocaulis-Scorpidium clade, and its position within the family is challenged. When H. ochraceum was excluded, good support is found for the genera Hamatocaulis and Scorpidium. Within the other major subclade the monophyly of a clade with Loeskypnum, Straminergon, and Warnstorfia, of a portion of Calliergon, and of Warnstorfia fluitans plus W. pseudostraminea are well supported.
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