Other References
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Fernald, M.L. 1950. Gray's manual of botany. 8th edition. D. Van Nostrand, New York. 1632 pp.
Gleason, H.A. 1952. Change of Name for Certain plants on the 'Manual Range.' Phytologia 4(1): 20-25.
Gleason, Henry A. and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada. The New York Botanical Garden, Bronx, New York. 910 pp.
Holmgren, Noel. 1998. The Illustrated Companion to Gleason and Cronquist's Manual. Illustrations of the Vascular Plants of Northeastern United States and Adjacent Canada. The New York Botanical Garden, Bronx, New York.
Keys, Jr.,J.; Carpenter, C.; Hooks, S.; Koenig, F.; McNab, W.H.; Russell, W.;Smith, M.L. 1995. Ecological units of the eastern United States - first approximation (cd-rom), Atlanta, GA: U.S. Department of Agriculture, Forest Service. GIS coverage in ARCINFO format, selected imagery, and map unit tables.
NatureServe. 2005. NatureServe Central Databases. Arlington, Virginia. USA
New York Natural Heritage Program. 2010. Biotics database. New York Natural Heritage Program. New York State Department of Environmental Conservation. Albany, NY.
Reschke, Carol. 1990. Ecological communities of New York State. New York Natural Heritage Program, New York State Department of Environmental Conservation. Latham, NY. 96 pp. plus xi.
Rettig, J.H. 1988. A biosystematic study of the Carex pensylvanica group (section Acrocystis) in North America. Ph.D. dissertation. University of Georgia, Athens.
Rettig, J.H. 1990. Achene micromorphology of the Carex nigromarinata complex (section Acrocystis, Cyperaceae). Rhodora 92: 70-79.
Rettig, J.H. and D.E. Giannasi. 1990. Foliar flavonoids of the Carex nigromarginata complex (section Acrocystis, Cyperaceae). Biochemical Syst. and Ecol. 18: 393-397.
Reznicek, A.A. and P.M. Catling. 1982. Cyperaceae new to Canad from Long Point, Morfolk County. Can. Field Nat. 96: 184-188.
Rhoads, Ann F. and Timothy A. Block. 2000. The Plants of Pennsylvania, an Illustrated Manual. University of Pennsylvania Press, Philadelphia, PA.
Roalson, E.H. and E.A. Friar. 2004. Phylogenetic relationships and biogeographic patterns in North American members of Carex section Acrocystis (Cyperaceae) using nrDNA its and ETs sequence data. Plant Systematics and Evolution 243: 175-187
Weldy, T. and D. Werier. 2010. New York flora atlas. [S.M. Landry, K.N. Campbell, and L.D. Mabe (original application development), Florida Center for Community Design and Research
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Acknowledgements
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