References for Lentibulariaceae

Casper, J.S. 1962. On Pinguicula macroceras Link in North America. Rhodora 64:212-221.
Casper, S.J. and H. Manitz. 1975. Beitrage zur Taxonomie und Chorologie der mitteleuropaischen Utricularia-Arten. 2. Feddes Repert. 86: 211-232.
Ceska, A. and M.A.M. Bell. 1973. Utricularia (Lentibulariaceae) in the Pacific Northwest. Madrono 22:74-84.
Thor, G. 1987. Sumpbladdra, Utricularia stygia, en ny svensk art. Svensk Bot. Tidskr. 81: 273-280.
Thor, G. 1988. The genus Utricularia in the Nordic countries, with special emphasis on U. stygia and U. ochroleuca. Nord. J. Bot. 8: 213-225.
Thor, G. 1979. Utricularia i Sverige, speciellt de forbisedda arterna U. australis och U. ochroleuca. Svensk Bot. Tidskr. 73: 381-395.

Source for the Reference Lists

George W. Douglas, Del Meidinger and Jim Pojar. 1998-2002. Illustrated Flora of British Columbia.