A phylogeny of Cribrariaceae among Myxomycetes derived from morphological characters. MYCOTAXON 110: 331–355.
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Abstract
Abstract – A cladistic study of the Cribrariaceae was performed to examine its
phylogenetic position among the Myxomycetes based on a data matrix comprising 54 morphological characters and 55 exemplar myxomycete species. Parsimony ratchet with implied weighting was employed as tree search strategy. Results show the Cribrariaceae as a monophyletic group that includes Cribraria and Dictydium but not Lindbladia and suggest Trichiales as the sister group. Our analyses neither support Dictydium as a genus separated from Cribraria nor the Liceales as monophyletic. This is the first attempt to evaluate the phylogenetic relationships of this group using morphological characters from representative species of all Myxomycetes within a cladistic framework.
Keywords – Echinosteliales, Physarales, slime molds, Stemonitales, taxonomy
Showing posts with label 2009. Show all posts
Showing posts with label 2009. Show all posts
De Luna, E. 2009
Typification, taxonomy and distribution of Braunia squarrulosa (Hedwigiaceae) in Mexico and Central America. The Bryologist 112(1): 202–207.
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ABSTRACT. Diagnosis and illustrations are given for Braunia squarrulosa. Relevant to the taxonomy of the species, three names needed lectotypification. A Schlechtendahl specimen at BM is the lectotype for B. squarrulosa. A collection by Ehrenberg (BM) is the lectotype for B. sphaerocarpa. The lectotype for B. liebmanniana is a Liebmann specimen located at BM. The last two names are retained as synonyms of B. squarrulosa. The worldwide distribution of the species is documented in Mexico, Guatemala, Honduras, Costa Rica and Panama.
KEYWORDS. Taxonomy, nomenclature, lectotypes, Hedwigiaceae, Braunia.
ABSTRACT. Diagnosis and illustrations are given for Braunia squarrulosa. Relevant to the taxonomy of the species, three names needed lectotypification. A Schlechtendahl specimen at BM is the lectotype for B. squarrulosa. A collection by Ehrenberg (BM) is the lectotype for B. sphaerocarpa. The lectotype for B. liebmanniana is a Liebmann specimen located at BM. The last two names are retained as synonyms of B. squarrulosa. The worldwide distribution of the species is documented in Mexico, Guatemala, Honduras, Costa Rica and Panama.
KEYWORDS. Taxonomy, nomenclature, lectotypes, Hedwigiaceae, Braunia.
García-Avila, D., E. De Luna & A.E. Newton. 2009
Phylogenetic relationships of the Thuidiaceae and the non-monophyly of the Thuidiaceae and the Leskeaceae based on rbcL, rps4 and the rps4-trnS intergenic spacer. The Bryologist 112(1): 80-93.
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ABSTRACT. We explored molecular data in order to establish the phylogenetic relationships of the Thuidiaceae. We sampled nine genera and 13 species of Thuidiaceae, and included representatives of 15 families that have been considered related to Thuidiaceae at some point. We used two chloroplast codifier genes (rbcL and rps4) and the rps4-trnS intergenic spacer. Our combined parsimony analyses retrieved a clade containing 12 exemplars of Thuidiaceae representing eight genera (Thuidium, Thuidiopsis, Pelekium, Aequatoriella,
Abietinella, Rauiella, Haplocladium and Actinothuidium) but with the inclusion of Leskea polycarpa and exclusion of Hylocomiopsis making the Thuidiaceae non-monophyletic as currently defined, and the Leskeaceae polyphyletic. The name Thuidiaceae is retained for the informal ‘‘thuidioid’’ group of taxa. The Rhytidiaceae (Rhytidium rugosum) was found sister to the clade of Thuidiaceae s.lat and Leskea polycarpa. The rps4-trnS spacer added characters that improved resolution and may be of value for similar studies at family level in other pleurocarpous mosses.
KEYWORDS. Bryopsida, Hypnales, Thuidiaceae, molecular phylogeny, Rhytidiaceae, gap codes, Leskeaceae.
ABSTRACT. We explored molecular data in order to establish the phylogenetic relationships of the Thuidiaceae. We sampled nine genera and 13 species of Thuidiaceae, and included representatives of 15 families that have been considered related to Thuidiaceae at some point. We used two chloroplast codifier genes (rbcL and rps4) and the rps4-trnS intergenic spacer. Our combined parsimony analyses retrieved a clade containing 12 exemplars of Thuidiaceae representing eight genera (Thuidium, Thuidiopsis, Pelekium, Aequatoriella,
Abietinella, Rauiella, Haplocladium and Actinothuidium) but with the inclusion of Leskea polycarpa and exclusion of Hylocomiopsis making the Thuidiaceae non-monophyletic as currently defined, and the Leskeaceae polyphyletic. The name Thuidiaceae is retained for the informal ‘‘thuidioid’’ group of taxa. The Rhytidiaceae (Rhytidium rugosum) was found sister to the clade of Thuidiaceae s.lat and Leskea polycarpa. The rps4-trnS spacer added characters that improved resolution and may be of value for similar studies at family level in other pleurocarpous mosses.
KEYWORDS. Bryopsida, Hypnales, Thuidiaceae, molecular phylogeny, Rhytidiaceae, gap codes, Leskeaceae.
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