Ashley Clayton and Peter Zale, Longwood Gardens At the Valmont Bog in Hazelton, PA, there are populations of three, state-listed taxa of Platanthera: P. ciliaris, P. blephariglottis, and P. xbicolor, a natural hybrid of the other two species. They are threatened by forest succession, climate change, silt-laden runoff, and herbicide spraying. However, as is the […]
In vitro, symbiotic germination of Platanthera species for conservation efforts
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