Martha A. Case

Extensive variation in the levels of genetic diversity and degree of relatedness among five species of <i>Cypripedium</i> (Orchidaceae)

Martha A. Case · American Journal of Botany · 1994 · 56 citations

Life Sciences, Evolutionary Biology, Genetics +11

Declining abundance of American ginseng (Panax quinquefolius L.) documented by herbarium specimens

Martha A. Case, Kathryn M. Flinn, Jean Jancaitis et al. · Biological Conservation · 2006 · 54 citations

Life Sciences, Botany, Plant Sciences +8

Conservation genetics and taxonomic status of the rare Kentucky lady's slipper: <i>Cypripedium kentuckiense</i> (Orchidaceae)

Martha A. Case, Henry T. Mlodozeniec, Lisa E. Wallace et al. · American Journal of Botany · 1998 · 52 citations · Full text

Life Sciences, Biology, Plant Sciences +16

Allozyme variation in American ginseng (Panax quinquefolius L.): Variation, breeding system, and implications for current conservation practice

Holly J. Grubbs, Martha A. Case · Conservation Genetics · 2004 · 37 citations

Agriculture, Conservation Biology, Plant Sciences +9

Contrasting Allozyme Diversity between Northern and Southern Populations of Cypripedium parviflorum (Orchidaceae): Implications for Pleistocene Refugia and Taxonomic Boundaries

Lisa E. Wallace, Martha A. Case · Systematic Botany · 2000 · 32 citations

Life Sciences, Botany, Plant Sciences +10