| # Festuca of North America |

S.G. Aiken, M.J. Dallwitz, C.L. McJannet, and L.L. Consaul

### Festuca canadensis E. B. Alexeev

Byull. Mosk. O-va Ispyt. Prir. Otd. Biol. 88: 104. 1983. Type: Canada. Ontario: comté de Simcoe, Wasaga Beach, sur les dunes de la Baie Georgienne, 12 July 1936, F. Marie-Victorin, F. Rolland-Germain and F. Dominique 46144. (Translated, Canada. Ontario: Simcoe County, Wasaga Beach, on the sand dunes of Georgian Bay, 12 July 1936, F. Marie-Victorin, F. Rolland-Germain, F. Dominique 46144.) Holotype: LE. Isotype: DAO!

Notes. Described by Alexeev (1983). Considered at this time to be synonymous with F. saximontana Rydb. although Darbyshire and Warwick (1992) reported differences in chloroplast DNA between the taxa. In a preliminary taxonomic study, the first author found no consistent morphological differences between candidates for F. canadensis and F. saximontana. A specimen of western F. saximontana has been growing in Ottawa since it was transplanted in 1981. An SDS-PAGE study of seed proteins of F. saximontana Aiken et al. (1993), suggested some differences between eastern and western collections considered to be this taxon. More recent studies suggest that the variation found in the seed protein banding profiles is similar to that found in the north to south distribution of other species.

We advise against extracting comparative information from the descriptions. This is much more easily achieved using the DELTA data files or the interactive key, which allows access to the character list, illustrations with detailed captions, full and partial descriptions, diagnostic descriptions, differences and similarities between taxa, lists of taxa exhibiting or lacking specified attributes, and distributions of character states within any set of taxa. See also Guidelines for using data taken from Web publications.

Cite this publication as: ‘Aiken, S.G., Dallwitz, M.J., McJannet, C.L. and Consaul, L.L. 1996 onwards. Festuca of North America: descriptions, illustrations, identification, and information retrieval. Version: 14th February 2019. delta-intkey.com’. Aiken, Dallwitz, McJannet, and Consaul (1997) should also be cited (see References).

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