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Taxonomic and Phylogenetic Studies on the Bartramiaceae

Dana Griffin III and William R. Buck
The Bryologist
Vol. 92, No. 3 (Autumn, 1989), pp. 368-380
DOI: 10.2307/3243406
Stable URL: http://www.jstor.org/stable/3243406
Page Count: 13
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Taxonomic and Phylogenetic Studies on the Bartramiaceae
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Abstract

The Bartramiaceae are divided into three subfamilies: the bartramioideae, the Breutelioideae subfam. nov., and the Conostomoideae subfam. nov. A key to the subfamilies and genera of the Bartramiaceae is provided. Axillary hairs are particularly useful in the phylogenetic assessment and they are illustrated for all the genera of the Bartramiaceae as well as for the genera in allied families, i.e., Meesiaceae, Timmiaceae, and Aulacomniaceae. The Catoscopiaceae are synonymized with the Bartramiaceae and Catoscopium is considered allied to Plagiopus. Other characters used in phylogenetic speculation are stem anatomy, spore morphology, rhizoid ornamentation, and chromosome numbers. The Bartramioideae contain Bartramia, Catoscopium, Leiomela, Plagiopus, and Flowersia gen. nov. (a segregate of Anacolia s.l.). The Conostomoideae are monotypic. The Breutelioideae accommodate Breutelia, Philonotis, Anacolia, Fleischerobryum, and Quathlamba. The sections of Breutelia are typified. Bartramidula is shown to be polyphyletic and is synonymized with Philonotis; the appropriate combinations are made. A new species of Philonotis, P. sharpiana, from Mexico is described. A dendrogram is presented to summarize the phylogenetic speculations.

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