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Ann. Missouri Bot. Gard., vol. 73 : p. 172 (1986) [C. Buckman] [76]
drawing: C. Buckman [7]
Illustration contributed by:
Missouri Botanical Garden, St. Louis, U.S.A.
Ann. Missouri Bot. Gard., vol. 73 : p. 172 (1986) [C. Buckman]