Phylogeny and habitat adaptations within a monophyletic group of wetland moss genera (Amblystegiaceae) |
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Authors: | Lars Hedenäs Annemieke Kooijman |
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Institution: | (1) Department of Cryptogamic Botany, Swedish Museum of Natural History, Box 50007, S-104 05 Stockholm, Sweden;(2) Fysisch geografisch en bodemkundig laboratorium, Universiteit van Amsterdam, Nieuwe Prinsengracht 130, NL-1018 VZ Amsterdam, The Netherlands |
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Abstract: | Genus level phylogenetic patterns within a monophyletic group of wetland mosses consisting ofTomentypnum, Hamatocaulis, Scorpidium, Conardia, Calliergon, Warnstorfia, Straminergon, andLoeskypnum (Amblystegiaceae) are cladistically analysed, usingPalustriella and partlyCratoneuron as outgroups. The ingroup consists of two clades, one withTomentypnum, Hamatocaulis andScorpidium, the other with the other ingroup genera. The second clade gets completely resolved only with the inclusion of habitat data. The adaptation to relatively dry wetland habitats probably evolved in the ancestor ofStraminergon andLoeskypnum, the species ofCalliergon andWarnstorfia, which are more ancestral, growing in wetter habitats. The more primitive taxa of the ingroup, as well asPalustriella species, occur in relatively mineral-rich habitats and adaptations to poorer habitats occurred several times in the two clades. |
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Keywords: | Musci Amblystegiaceae Habitat adaptations phylogeny wetlands |
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