. Atlas of the rare vascular plants of Ontario. Rare plants; Botany. HABITAT: Dunes, sandy woods, and shallow soil over linnestone. STATUS: Rare in Canada. Threatened in Michigan and Wisconsin. NOTES: Iris lacustris is endemic to the shorelines of lakes Erie, Huron, and Michigan. It is currently under review in the United States for threatened or endangered status (United States Fish & Wildlife Service 1985). According to Krotkov (1940), the distribution of Iris lacustris on the Bruce Peninsula is "shores of Lake ; A collection at TRT nnade by Krotkov in 1933 from "Big
. Atlas of the rare vascular plants of Ontario. Rare plants; Botany. HABITAT: Dunes, sandy woods, and shallow soil over linnestone. STATUS: Rare in Canada. Threatened in Michigan and Wisconsin. NOTES: Iris lacustris is endemic to the shorelines of lakes Erie, Huron, and Michigan. It is currently under review in the United States for threatened or endangered status (United States Fish & Wildlife Service 1985). According to Krotkov (1940), the distribution of Iris lacustris on the Bruce Peninsula is "shores of Lake ; A collection at TRT nnade by Krotkov in 1933 from "Big Bay" was not plotted because it is on the Georgian Bay side of the Bruce Peninsula. The locality on the label is likely an error since it was not included in Krotkov's 1940 description of this plant's distribution on the peninsula. HABITAT: Dunes, forêts sablonneuses et sols suerficiels sur calcaire. SITUATION: Rare au Canada. Menacée au Michigan et au Wisconsin. REMARQUES: Iris lacustris est endémique aux rivages des lacs Ãrié, Huron et Michigan. Aux Ãtats- Unis, l'espèce fait actuellement l'objet d'une étude qui devrait préciser son statut d'espèce menacée ou menacée d'extinction (United States Fish and Wildlife Service 1985). Selon Krotkov (1940), l'aire d'Iris lacustris sur la péninsule Bruce correspond aux rives du lac Huron. On n'a pas indiqué l'emplacement du spécimen récolté par Krotkov en 1933 à "Big Bay" (TRT) parce que cet endroit se trouve sur le côté de la baie géorgienne de la péninsule Bruce. L'endroit mentionné sur l'étiquette est sans doute erroné, car Krotkov ne l'a pas inclus dans sa description de 1940 de l'aire de cette plante sur la péninsule. REFERENCES / SOURCES Cruise, , & Catling. 1972. A white-flowered form of Iris lacustris irom Ontario. Rhodora 74: 271. Guire, , & Voss. 1963. Distributions of distinctive shoreline plants in the Great Lak
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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectbotany
