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Slender Moonwort, Botrychium lineare (Ophioglossaceae), Rediscovered in Quebec.

Cayouette, J. and Farrar, D.R. (2009). "Slender Moonwort, Botrychium lineare (Ophioglossaceae), Rediscovered in Quebec.", Canadian Field Naturalist, 123(3), pp. 255-259.


Slender Moonwort (Botrychium lineare), described in 1994, is a very rare fern in eastern North America. It was known in Québec, Canada, from only two sites in the Gaspé Peninsula but has not been relocated since its discovery at these sites in 1902 and 1942. An ongoing study of B. lineare and its recent discovery in northern Minnesota prompted a re-examination of a 1972 collection made in western Québec, in Gatineau Park, previously identified under various names, including B. campestre. A recent visit (2008) to the Gatineau Park site disclosed continued presence of similar plants. Based on morphological characters, spore size, genotype (allozyme electrophoresis), and appropriate habitat features, we conclude that the newly discovered plants and those of the 1972 collection are B. lineare. B. lineare appears on the Québec government list of plant species likely to be designated threatened or vulnerable.

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