On the relationships of mosses of the order hypnales, with special reference to Taxa traditionally classified in the Leskeaceae

: Ignatov MS, Gardiner AA, Bobrova VK, Milyutina IA, Huttunen S, Troitsky AV

: 2007

Systematics Association Special Volume

: PLEUROCARPOUS MOSSES: SYSTEMATICS AND EVOLUTION

: SYST ASSOC SPEC VOL

: 71

: 177

: 213

: 37

: 978-0-8493-3856-4

: 0309-2593

Parsimony and Bayesian analysis of nrITS and trnL-F for 134 species of Hypnales and 2 from Hookeriales found a basal grade within Hypnales, which includes Plagiotheciaceae, Stereophyllaceae, Habrodontaceae, Leucodon and Hypnum cupressiforme + Eurohypnum (and sometimes also Pterigynandrum and Platygyrium), while the rest of Hypnales are segregated in two main clades. Main clade I includes representatives of the Brachytheciaceae, Calliergonaceae, Climaciaceae, Hylocon-iaceae, Neckeraceae, Pseudoleskeaceae, Theliaceae, and genera Anomodon, Antitrichia, Claopodium, Conardia, Dolichomitriopsis, Echinodium, Glossadelphus, Heterocladium, Leptopterigynandrum, Neodolichomitra, Pilotrichella, Rhytidiopsis, Taxiphyllum, and Thelia. Main clade 2 includes representatives of Amblystegiaceae, Leskeaceae, Pylaisiaceae, Scorpidiaceae, Thuidiaceae, and genera Breidleria, Calliergonella, Campylophyllum, Drepanium, Entodon, Iwatsukiella, Myrinia, Ochyraea, Platygyrium, Ptilium, Rhytidium, Sematophyllum, Tomentypnum. The Leskeaceae as traditionally circumscribed were not monophyletic but found in both main clades. In the main clade 1 are four groups: (1) Pseudoleskeaceae, which forms a well-supported clade; (2) Leptopterigynandrum, with Taxiphyllum and Glossadelphus; (3) Claopodium, with Anomodon rostratus; (4) Pseudoleskeella serpentinensis, with Heterocladium, and Neckeraceae (incl. Leptodon and Forsstroemia). Main clade 2 includes three groups of Leskeaceae: (1) Pseudoleskeella clade; (2) Lindbergia + Mamillariella clade; (3) Leskea, Haplocladium and Pseudoleskeopsis zippelii were found among Thuidiaceae, not forming a monophyletic group.