Reference:Foster1937a
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Verbatim text: Foster, R. C. 1937. A cytotaxonomic survey of the North American species of Iris. Contr. Gray Herb. 119: 3–79.
Author: Foster, R.C.
Year: 1937
Title: A cytotaxonomic survey of the North American species of Iris
Journal: Contr. Gray Herb
Volume: 119
Pages: 3–79