. Atlas of the rare vascular plants of Ontario. Rare plants; Botany. HABITAT: Prairies. STATUS: Rare in Canada. Rare in Pennsylvania and Virginia. NOTES: Sisyrinchium albidum is recognized here although Mosquin (1970) suggests that it is best treated as a variant of the widespread S. bermudiana, in which he also includes S. montanum Greene and S. angustifolium P. Mill. Sisyrinchium albidum differs from other related species in having twinned rather than single spathes. This species occurs in a few prairie relicts in the vicinity of Windsor. HABITAT: Prairies. SITUATION: Rare au Canada. Rare en
. Atlas of the rare vascular plants of Ontario. Rare plants; Botany. HABITAT: Prairies. STATUS: Rare in Canada. Rare in Pennsylvania and Virginia. NOTES: Sisyrinchium albidum is recognized here although Mosquin (1970) suggests that it is best treated as a variant of the widespread S. bermudiana, in which he also includes S. montanum Greene and S. angustifolium P. Mill. Sisyrinchium albidum differs from other related species in having twinned rather than single spathes. This species occurs in a few prairie relicts in the vicinity of Windsor. HABITAT: Prairies. SITUATION: Rare au Canada. Rare en Pennsylvanie et en Virginie. REMARQUES: On a accepté la désignation Sisyrincfiium albidum bien que Mosquin (1970) juge préférable de la traiter comme un variant de l'espèce plus commune S. bermudiana, à laquelle il rattache également S. montanum Greene et S. angustifolium P. Mill. Sisyrinchium albidum diffère des autres espèces qui y sont apparentées par des spathes doubles et non simples. On peut observer l'espèce dans quelques reliquats de prairies près de Windsor. REFERENCES / SOURCES Hill, 1984. A floristic and chromosomal study of Sisyrinchium (Iridaceae) in Virginia. Castanea 49: 62-68. Marchand, , & Grear. 1975. Preliminary studies of Sisyrinchium (Iridaceae) in Ontario. Ontario Field Biologist 29: 36-43. Mosquin, T. 1970. Chromosome numbers and a proposal for classification in Sisyrinchium (Iridaceae). Madrono 20: 269-275. Oliver, , & Lewis. 1962. Chromosome numbers of Sisyrinchium (Iridaceae) in eastern North America. Sida 1: 43-48. Keddy 1987. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Argus, George W. (George William); National Museum of Natural Sciences (Canada). Botany Division. Ottawa : Botany Division, National Museum
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