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Serpoleskea minutissima comb. nov., a micro-rheophyte in the Pylaisiadelphaceae

WILLIAM R. BUCK, BRUCE H. ALLEN

Abstract


A recent collection of Platydictya minutissima from Kentucky, U.S.A., prompted a re-examination of the species. Based on rhizoid placement and pseudoparaphyllium form, the taxon is transferred to Serpoleskea as S. minutissima (Sull. & Lesq.) W.R.Buck & B.H.Allen. The species is restricted to eastern North America. Ecologically the taxon grows on moist rocks in or along streams, becoming submerged at times of high water.


Keywords


Plagiotheciaceae, Platydictya, Pylaisiadelphaceae, rheophyte, Serpoleskea

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DOI: http://dx.doi.org/10.11646/bde.39.1.11

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