Bibliography and Citations
.
1981. .
1994. .
1992. .
2008. .
1992. .
1998. .
1994. .
1989.
Rare mosses in Estonia and their protection. Biological Conservation. 59:201-203.
.
1992. .
2001. Rare Iowa plant notes from the R. V. Drexler Herbarium. Journal of the Iowa Academy of Science. 97(1):55-73.
.
1990. Rare ferns of Hungary. III. The establishment of fern species in a planted pine forest. Studia Botanica Hungarica. 17:15-22.
.
1984. Rare, declining, and poorly known butterflies and moths (Lepidoptera) of forest and woodlands in the eastern United States. Edition 2nd. Morgantown (W.V.): Forest Health Technology Enterprise Team.
.
2018. Rare butterfly assessment for the Columbia River Basin in the Pacific Northwest. Available from http://www.icbemp.gov/science/hammond2.pdf
.
1994. Rare bryophytes of the interior Columbia River Basin and northern Great Basin. Journal of the Hattori Botanical Laboratory. 82:61-75.
.
1997. Rare bryophytes of Oregon. Salem (OR): Bureau of Land Management, Salem District. Available from http://www.societequebecoisedebryologie.org/documents/Rare-Bryophytes-Lower-Quality-Web.pdf
.
2016. .
2015. .
1996. Rare Beauty. Wyoming Wildlife. :24-29.
.
1995. .
2003. .
2003. .
0. .
2003. .
1990. .
1996.