New York Natural Heritage Program
Appalachian Firmoss
Huperzia appressa (Desv.) A. L?ve & D. L?ve
Clubmosses
Links
Best Identification Reference
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.

Other References
Beitel, J.M. and J.T. Mickel. 1992. The Appalachian Firmoss, a New Species in the Huperzia selago (Lycopodiaceae) Complex in Eastern North America, with a New Combination for the Western Firmoss. American Fern Journal 82: 41-46.
Fernald, M.L. 1950. Gray's manual of botany. 8th edition. D. Van Nostrand, New York. 1632 pp.
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.
Haines, A. 2003. The families Huperizaceae and Lycopodiaceae of New England: a taxonomic and ecological reference. V.F. Thomas Co., Bowdoin, ME.
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.
Mitchell, Richard S. and Gordon C. Tucker. 1997. Revised Checklist of New York State Plants. Contributions to a Flora of New York State. Checklist IV. Bulletin No. 490. New York State Museum. Albany, NY. 400 pp.
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.
Wagner, H.W. Jr. and J.M. Beitel. 1993. Lycopodiaceae Mirbel. Pages 18-37 in Flora of North America Editorial Committee (Editors), Flora of North America, north of Mexico, Volume 2, Pteridophytes and Gymnosperms. Oxford University Press, New York, NY, USA
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 http://www.fccdr.usf.edu/. University of South Florida http://www.usf.edu/

Acknowledgements

Funding from the NYSDEC Hudson River Estuary Program made the initial development of these guides possible.

Additional support has been provided by

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Modifications and updates: David Marston.

Global data are provided by NatureServe and its Natural Heritage member programs, a leading source of information about rare and endangered species, and threatened ecosystems.

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To continue building a comprehensive, up-to-date database of information on the locations of rare species and ecological communities in New York State, we invite your contributions. If you have information on a rare species or ecological community, please fill out a Natural Heritage Reporting Form (two-page MS Word document).

This guide was authored by:
Information for this guide was last updated on: 18-Mar-2013