TY - Generic T1 - Gas exchange and reproduction of Spiranthes vernalis (Orchidaceae) in a Kansas tallgrass prairie Y1 - 1995 A1 - Johnson, S.R. ED - D.C. Hartnett KW - tallgrass prairie UR - http://images.library.wisc.edu/EcoNatRes/EFacs/NAPC/NAPC14/reference/econatres.napc14.sjohnson.pdf ER -