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Isoetes tegetiformans, commonly known as mat-forming quillwort or mat-forming Merlin's grass, is an aquatic pteridophyte endemic to the U.S. State of Georgia. It grows exclusively in shallow, temporary pools on granite outcrops, often with only 2 cm of soil. Only 7 populations are known to exist, and three of these have been destroyed since the plant's discovery in 1976. The remaining populations are threatened with habitat destruction due to quarrying, though the species is protected under the U.S. Endangered Species Act. New leaves quickly sprout after fall and winter rains, but during the dry summer months these typically shrivel.[1][2]
[edit] References
- ^ a b Isoetes tegetiformans. NatureServe Explorer. NatureServe. Retrieved on 2008-01-25.
- ^ Taylor, W. Carl; Luebke, Neil T.; Britton, Donald M.; Hickey, R. James; Brunton, Daniel F. (1993), “Isoetes tegetiformans”, in Flora of North America Editorial Committee, eds. 1993+, Flora of North America, vol. 2, New York & Oxford: Oxford University Press
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