Patterns of Variation in Sphagnum capillifolium Sensu Lato

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Abstract
Complex patterns of morphological variation within Sphagnum capillifolium sensu lato have led to a confusing array of taxonomic treatments. An exploratory investigation was undertaken of the variation within a single peatland. Results of a multivariate analysis of a random sample of the population indicates that two taxa, a woodland taxon corresponding to S. subtile (Russow) Warnst. and an open bog taxon corresponding to S. rubellum Wils., may be recognized. Both taxa remained distinct in a common garden without any evidence of intergradation between them. These results are significant since S. subtile has been viewed by some taxonomists as a taxon of doubtful value. It is recommended that S. subtile deserves taxonomic recognition although further investigations are desirable to determine the taxonomic status of these and other taxa in S. capillifolium sensu lato since this investigation was limited to a single peatland.

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