Abstract
A steady increase in the number of lycophyte taxa discovered in Manitoba over the last 20 years prompted a determination of which species should be included in an updated provincial list. Collections made throughout the province since 2008 and a critical examination of over 1000 herbarium specimens enabled a substantive review and update of Manitoba’s lycophyte flora. It now comprises 22 taxa: 14 species and two hybrid clubmosses (Lycopodiaceae), three spikemosses (Selaginellaceae), and two species and one hybrid quillwort (Isoetaceae). Thirteen of the 21 species are designated to be of conservation concern, with NatureServe ranks of Critically Imperilled (S1; three), Imperilled (S2; two), or Vulnerable (S3; nine). Based on verified specimens, we describe the abundance and habitats, and summarize recent changes in nomenclature and systematics for all Manitoba lycophyte taxa.
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