Bibliography and Citations
An Erigeron from Nevada and a Penstemon from Idaho. Great Basin Naturalist. 48(4):495-498.
.
1988. .
1993. .
1991. Epiphyte habitats in an old conifer forest in western Washington, U.S.A. Bryologist. 103(3):417-427.
.
2000. Epipactis gigantea revisited. Orchid Digest. 51(4):203-204.
.
1987. .
2016. Epipactis gigantea. American Orchid Society Bulletin. 51(10):1038-1040.
.
1982. Epipactis gigantea. Pacific Horticulture. 47(4):31-32.
.
1984. Epipactis gigantea. Environment Southwest. 490(Summer):24-27.
.
1980. Epilobium davuricum Fisch. (Onagraceae) in eastern Fennoscandia compared with E. palustre L.: A morphological, ecological and distributional study. Annales Botanici Fennici. 6:35-58.
.
1972. Enzyme polymorphism, morphometric variation and population structure in a restricted endemic, Silene diclinis (Caryophyllaceae). Biological Journal of the Linnean Society. 22:125-143.
.
1984. .
1995. .
1992. .
1985. .
1980. .
1978. .
2002. .
2004. .
1988. Enumeration of Endangered Marine and Anadromous Species, 50 C.F.R. § 224.101. :383-386. Available from https://www.gpo.gov/fdsys/pkg/CFR-2011-title50-vol9/pdf/CFR-2011-title50-vol9-chapII.pdf
.
2011. .
1983. An enthusiasm for orchids: sex and deception in plant evolution. New York (NY): Oxford University Press. Available from http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780195182743.001.0001/acprof-9780195182743
.
2006. Entanglement threatens ospreys at Saskatchewan nests. Journal of Raptor Research. 40(3):226-228. Available from http://www.bioone.org/doi/full/10.3356/0892-1016%282006%2940%5B226%3AETOASN%5D2.0.CO%3B2
.
2006. The enigma of yellow-cedar decline: what is killing these long-lived, defensive trees? Journal of Forestry. 95(12):4-10.
.
1997. Enhancing a landscape assessment with intensive data: a case study in the Upper Juniata watershed. Wetlands. 27(3):446-461.
.
2007.