the affinities of the ophioglossaceae and marsiliaceae

The Affinities of the Ophioglossaceae and MarsiliaceaeAuthor(s): Douglas H. CampbellSource: The American Naturalist, Vol. 38, No. 454 (Oct., 1904), pp. 761-775Published by: The University of Chicago Press for The American Society of NaturalistsStable URL: http://www.jstor.org/stable/2455282 .

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