References

References used in the 1997 profiles.  Additional references are also listed at the end of each species profile.

  • | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |


A
  • Allphin, L. 1991. Survey of Grand Gulch Primitive Area for Erigeron kachinensis. Unpublished report prepared for the Colorado Natural Areas Program, Denver, CO.
  • Anderson, J.L. 1988a. Status report for Ipomopsis polyantha var. polyantha. Unpublished report prepared for the U.S. Fish and Wildlife Service, Golden, CO.
  • Anderson, J.L. 1988b. Status report for Lesquerella pruinosa. Unpublished report prepared for the U.S. Fish and Wildlife Service, Golden, CO.
  • Anderson, J.L. and J.M. Porter. 1994. Astragalus tortipes (Fabaceae), a new species from desert badlands in southwestern Colorado and its phylogenetic relationships within Astragalus. Systematic Botany 19(1): 116-125.
  • Arft, A.M. and T.A. Ranker. 1992. Population genetics and phylogenetic systematics of the rare orchid Spiranthes diluvialis: implications for conservation. In: Proceedings of the Southwestern Rare and Endangered Plants Conference, Santa Fe, NM.
  • Argus, G.W. 1973. The genus Salix in Alaska and the Yukon. National Museum of Natural Sciences Publications in Botany, No. 2. Ottawa, Canada.
  • Atwood, D.N., J. Holland, R. Bolander, B. Franklin, D.E. House, L.
  • Armstrong, K. Thorne, and L. England. 1991. Utah Threatened, Endangered, and Sensitive Plant Field Guide. U.S. Forest Service Intermountain Region, National Park Service, Bureau of Land Management, Utah Natural Heritage Program, U.S. Fish and Wildlife Service, Environmental Protection Agency, Navajo Nation, and Skull Valley Goshute Tribe.
    • B
  • Baird, V.B. 1942. Wild Violets of North America. University of California Press, Berkeley, CA.
  • Barneby, R.C. 1947. A new monocephalous Parthenium. Leaflets of Western Botany 5:19-20.
  • Barneby, R.C. 1964. Atlas of North American Astragalus. Memoirs New York Botanical Garden Vol. 13, Bronx, NY.
  • Barneby, R.C. and S.L. Welsh. 1985. New species of Astragalus (Leguminosae) from southeastern Utah. Great Basin Naturalist 45(3):551-552.
  • Barneby, R.C. 1989. Fabales, Vol. 3, Part B. Fables. In: A. Cronquist, A.H. Holmgren, N.H. Holmgren, J.L. Reveal and P.K. Holmgren. Vascular Plants of the Intermountain West, U.S.A. New York Botanical Garden, Bronx, NY.
  • Benson. L. 1966. A revision of Sclerocactus. Cactus and Succulent Journal of America 38:54-55.
  • Boissevain, C. and C. Davidson. 1940. Colorado Cacti: An Illustrated Guide Describing All of the Native Colorado Cacti. Abbey Garden Press, Pasadena, CA.
  • Brainerd, E. 1921. Violets of North America. Free Press Printing Company, Burlington, VT.
  • Braun, R.P. 1988. Inventory of Astragalus ripleyi on the Carson National Forest. Unpublished report prepared for the U.S. Forest Service.
  • Britton, N.L. 1901. Manual of the Flora of the Northern States and Canada. Henry Holt and Co., New York, NY.
  • Brown, G. 1995. Personal communication with the Colorado Natural Heritage Program regarding Oönopsis puebloensis. University of Wyoming, Laramie, WY.
  • Brunsfeld, S.J. and F.D. Johnson. 1985. Field Guide to the Willows of East-central Idaho. Forest, Wildlife and Range Experiment Station. University of Idaho, Moscow, ID.
  • Buckner, D.L. and J.E. Bunin. 1992. Final report: 1990/91 status report for Penstemon harringtonii. Unpublished report prepared for the Colorado Natural Areas Program, Denver, CO by Esco Associates, Inc., Boulder, CO.
  • Bunin, J.E. 1991a. Status report for Astragalus wetherilli. Unpublished report prepared for the Colorado Natural Areas Program by Natural Science Association, Inc., Boulder, CO.
  • Bunin, J.E. 1991b. Status report for Lomatium concinnum. Unpublished report prepared for the U.S. Fish and Wildlife Service, Golden, CO.
  • Bureau of Land Management. 1990a. Colorado fish and wildlife 2000, a plan for the decade.
  • Bureau of Land Management. 1990b. Osterhout milkvetch inventory. Unpublished report prepared by Western Resource Development, Boulder, CO.
  • Bureau of Land Management. 1995. Endangered, Threatened and Sensitive Plant Field Guide, Farmington District, New Mexico. Prepared by Ecosphere Environmental Services, Inc., Farmington, NM.
  • Burt, J. and S. Spackman. 1995. Status report for Phacelia submutica. Unpublished report prepared for U.S. Fish and Wildlife Service, Golden, CO. by the Colorado Natural Heritage Program, Fort Collins, CO.
  • Caddis-Burrell, K. 1989. Letter to Colorado Program of The Nature Conservancy regarding Penstemon cyathophorus.
    • C
  • Carter, J.L. 1988. Trees and Shrubs of Colorado. Johnson Books, Boulder, CO.
  • Cholewa, A.F. and D.M. Henderson. 1984. Biosystematics of Sisyrinchium section Bermudiana (Iridaceae) of the Rocky Mountains. Brittonia 36:342-363.
  • Coffin, B. and L. Pfannmuller. 1988. Minnesota’s Endangered Flora and Fauna. University of Minnesota Press, St. Paul, MN.
  • Coles, J. 1990. Status report for Mentzelia densa. Unpublished report prepared for U.S. Fish and Wildlife Service, Golden, CO.
  • Colorado Native Plant Society. 1989. Rare plants of Colorado. Colorado Native Plant Society, in cooperation with the Rocky Mountain Nature Association, Estes Park, CO.
  • Colorado Natural Heritage Program. 1996. Rare and imperiled animals, plants, and natural communities. Vol. 2(1). Fort Collins, CO.
  • Cooper, D.J. 1990. Ecology of wetlands in Big Meadows, Rocky Mountain National Park, Colorado. Biological report 90(15). Unpublished report prepared for the U.S. Fish and Wildlife Service, Golden, CO.
  • Coyner, J. 1990. Report for population study: Spiranthes diluvialis. University of Utah, Salt Lake City, UT. Unpublished report prepared for the Colorado Natural Areas Program, Denver, CO.
  • Cronquist, A., A.H. Holmgren, N.H. Holmgren, J.L. Reveal and P.K. Holmgren. 1977. Intermountain Flora Vascular Plants of the Intermountain West, U.S.A: Vol. 6. New York Botanical Garden, Bronx, NY.
  • Cronquist, A., A.H. Holmgren, N.H. Holmgren, J.L. Reveal, and P.K. Holmgren. 1984. Intermountain Flora Vascular Plants of the Intermountain West, U.S.A: Vol. 4. New York Botanical Garden, Bronx, NY.
  • Cronquist, A., A.H. Holmgren, N.H. Holmgren, J.L. Reveal, P.K. Holmgren. 1994. Intermountain Flora Vascular Plants of the Intermountain West, U.S.A: Vol. 5. New York Botanical Garden, Bronx, NY.
  • Cully, A.C. 1985. Status report on Atriplex pleiantha. Unpublished report prepared for the U.S. Fish and Wildlife Service, Albuquerque, NM.
  • Culver, D., M. March, S. Kettler, and C. Pague. 1996. Natural Heritage inventory of significant animals and plants and classification of riparian plant associations; Timpas grazing district and Kim grazing association. Unpublished report prepared for the U.S. Forest Service, Pike and San Isabel National Forests by the Colorado Natural Heritage Program, Fort Collins, CO.
    • D
  • Dorn, R.D. 1975. A systematic study of Salix section Cordatae in North America. Canadian Journal of Botany 53:1491-1522.
  • Dorn, R.D. 1977. Willows of the Rocky Mountain states. Rhodora 79:390- 429.
  • Dorn, R.D. 1982. A new species of Penstemon (Scrophulariaceae) from Wyoming. Brittonia 34(3):334-335.
  • Dorn, R.D. 1990. Report on the status of Penstemon gibbensii, candidate threatened species. Unpublished.
  • Dorn, R.D. 1992. Vascular Plants of Wyoming. Mountain West Publishing, Cheyenne, WY.
  • Douglas, P. 1992. Vascular flora of the Conejos River Basin, San Juan Mountains, Conejos County, Colorado. Colorado State University, Fort Collins, CO. Unpublished thesis.
    • E
  • England, J.L. 1982. A new species of Penstemon (Scophulariaceae) from the Unita Basin of Utah and Colorado. Great Basin Naturalist 42(3):367-368.
    • F
  • Fertig, W. 1993. Field Survey for Cleome multicaulis, Cymopterus williamsii, and Sullivantia hapemanii in north central Wyoming. Unpublished report prepared for the Bureau of Land Management, Casper, WY by Wyoming Natural Diversity Database, Laramie, WY.
  • Fertig, W. 1994a. Status report on Gaura neomexicana ssp. coloradensis, a candidate threatened species. Unpublished report prepared for the U.S. Fish and Wildlife Service by the Wyoming Natural Diversity Database, Laramie, WY.
  • Fertig, W. 1994b. Wyoming Rare Plant Field Guide. The Wyoming Natural Diversity Database, Laramie, WY.
  • Fletcher, R., B. Isaacs, P. Knight, W. Martin, D. Sabo, R. Spellenberg, and T. Todsen. 1984. A Handbook of Rare and Endemic Plants of New Mexico. University of New Mexico Press, Albuquerque, NM. Flora of North America Editorial Committee. 1993. Flora of North America North of Mexico: Vol. 2. Oxford University Press, NY.
  • Floyd, S. 1995. Survey for Gaura neomexicana ssp. coloradensis (Colorado butterfly plant) on Meadow Springs Ranch. Unpublished report prepared for the City of Fort Collins, CO. by the Colorado Natural Heritage Program, Fort Collins, CO.
  • Foote, P.W. 1989. Germination studies in Atriplex pleiantha. Department of Agronomy and Horticulture, Colorado State University, Ft. Collins, CO. Unpublished thesis.
G
  • Galatowitsch, S. 1985. Plant Species of Special Concern for Colorado. Unpublished report prepared for the Colorado Natural Areas Program, Denver, CO.
  • Galatowitsch, S. and S.L. O’Kane. 1985. Plant species of special concern: Penstemon grahamii. Unpublished report prepared for the Colorado Natural Areas Program, Denver, CO.
  • Gillett, J.M. 1957. A revision of the North American species of Gentianella. Annals of the Missouri Botanical Garden 44:195-249.
  • Goodrich, S. 1986. Utah Flora: Apiaceae. Great Basin Naturalist 46(1).
  • Goodrich, S. and E. Neese. 1986. Uinta Basin Flora. U.S.D.A. Forest Service, Ogden, UT.
  • Graff, D. 1992. Status report for Cleome multicaulis on Blanca wetlands. Unpublished report prepared for the Bureau of Land Management, Alamosa, CO.
  • Graham, E.H. 1937. Botanical studies in the Uinta Basin of Utah and Colorado. Annals of the Carnegie Museum 26:28-432.
  • Grant, V. and D.H. Wilken. 1986. Taxonomy of the Ipomopsis aggregata group (Polemoniaceae). Botanical Gazette Sept.:359-371.
  • Great Plains Flora Association. 1986. Flora of the Great Plains. University Press of Kansas, Lawrence, KS.
    • H
  • Haber, E. 1987. Variability, distribution, and systematics of Pyrola picta (Ericaceae) in western North America. Systematic Botany 12(2):324-335.
  • Hall, H.M. 1928. The genus Haplopappus: a phylogenetic study in the Compositae. Carnegie Institution of Washington, Washington D.C., Publication 389:391.
  • Halse, R.R. 1981. Taxonomy of Phacelia sect. Miltitzia (Hydrophyllaceae). Madroño 28(3):121-132.
  • Harrington, H.D. 1950. Colorado Ferns and Fern Allies. Colorado Agricultural Research Foundation, Fort Collins, CO.
  • Harrington, H.D. 1954. Manual of the Plants of Colorado. Sage Books, Denver, CO.
  • Harris, J.G. 1985. A revision of the genus Braya (Cruciferae) in North America. University of Alberta, Edmonton, Alberta, Canada. Unpublished dissertation.
  • Hartman, R.L. 1992. Report on the status of Sisyrinchium pallidum, a candidate threatened species. Unpublished.
  • Hartman, R.L. 1994. Personal communication with Colorado Natural Heritage Program regarding Aletes eastwoodiae.
  • Haufler, C.H. and M.D. Windham. 1991. New Species of North American Cystopteris and Polypodium, with comments on their reticulate relationships. American Fern Journal 81(1):7-23.
  • Heil, K.D. 1984. Recovery plan for the Mesa Verde cactus; Sclerocactus mesae-verdae. Unpublished report prepared for the U.S. Fish and Wildlife Service, Golden, CO.
  • Heil, K.D. 1985. Knowlton cactus (Pediocactus knowltonii) recovery plan. Unpublished report prepared for the U.S. Fish and Wildlife Service, Albuquerque, NM.
  • Heil, K.D. and J.M. Porter. 1990. Status report for Astragalus microcymbus. Unpublished report prepared for the U.S. Fish and Wildlife Service, Golden, CO.
  • Hermann, F.J. 1970. Manual of the Carices of the Rocky Mountains and Colorado Basin. U.S.D.A. Forest Service Agriculture Handbook No. 374.
  • Hessl, A. and S. Spackman. 1995. Effects of Fire on Threatened and Endangered Plants: An Annotated Bibliography. U.S. Fish and Wildlife Service, Washington, D.C.
  • Higgins, L.C. 1971. A revision of Cryptantha subgenus oreocarya. Brigham Young University Science Bulletin, 13:1-63.
  • Hitchcock, C.L. 1941. A revision of the Drabas of Western North America. University of Washington Publications in Biology 11:1-132.
  • Hitchcock, C.L. and A. Cronquist. 1973. Flora of the Pacific Northwest. University of Washington Press, Seattle, WA.
  • Hitchcock, C.L., A. Cronquist, and M. Ownbey. 1969. Pt.1: Vascular Cryptogams, Gymnosperms, and Monocotyledons. In: C.L.
  • Hitchcock, A. Cronquist, M. Ownbey, and J.W. Thompson. Vascular Plants of the Pacific Northwest. University of Washington Publications Biology 17(1).
  • Hultén, E. 1968. Flora of Alaska and Neighboring Territories. Stanford University Press, Stanford, CA.
    • I
  • Iltis, H.H. 1958. Studies in the Capparidaceae-V. Capparids of New Mexico. The Southwestern Naturalist 3:133-144.
    • J
  • Jennings, W.F. 1988. The search for orchids. Colorado Native Plant Society. Aquilegia 12(4):7.
  • Jennings, W.F. 1989. Final report for Eustoma grandiflorum, Spiranthes diluvialis, Malaxis brachypoda, Hypoxis hirsuta, Physaria bellii, and Aletes humilis. Unpublished report prepared for The Nature Conservancy, Boulder, CO.
  • Jennings, W.F. 1990a. Final report for Spiranthes diluvialis and Sisyrinchium pallidum. Unpublished report prepared for The Nature Conservancy, Boulder, CO.
  • Jennings, W.F. 1990b. Status report on four plants considered rare in Colorado: Aletes humilis, Platanthera sparsiflora, Listera borealis, and Listera convallarioides. Unpublished report prepared for the U.S. Forest Service.
  • Jennings, W.F. 1991. Status report on four plants considered rare in Colorado: Cypripedium fasiculatum, Lilium philadelphicum, Pyrola picta, and Goodyera repens. Unpublished report prepared for U.S. Forest Service.
  • Johnston, B.C. 1979. Status information for Astragalus microcymbus and Cryptantha aperta. U.S. Forest Service Summary Sheet.
  • Johnston, B.C. 1980. Studies of population variability leading to a new classification of Potentilla sect. Multijugae (Rosaceae). University of Colorado, Boulder, CO. Unpublished thesis.
  • Johnston, B.C. and L. Hendzel. 1981. Revision of status report on Ptilagrostis porteri. Unpublished report prepared for the U.S. Fish and Wildlife Service, Golden, CO.
  • Johnston, B.C., J.S. Peterson and W. Harmon. 1981a. Status report for Eriogonum brandegei. Unpublished report prepared for U.S. Fish and Wildlife Service, Golden, CO.
  • Johnston, B.C., J.S. Peterson and W. Harmon. 1981b. Status report for Ipomopsis globularis. Unpublished report prepared for U.S. Fish and Wildlife Service, Golden, CO.
    • K
  • Kartesz, J.T. 1994. A Synonymized Checklist of the Vascular Flora of the United States, Canada, and Greenland (second edition). Timber Press, Inc., Portland, OR.
  • Keck, D.D. 1938. Studies in Penstemon VI sect. Aurator. Bulletin of the Torrey Botanical Club 65:233-255.
  • Kelso, S., K. Heckmann, J. Lawton, and G. Maentz. 1995. The ecology and distribution of Oxybaphus rotundifolius and Penstemon versicolor: geobotany and endemism in the Arkansas Valley, CO. Unpublished report prepared for the Colorado Natural Areas Program, Denver, CO. and Colorado Native Plant Society.
  • Kettler, S.M., N.D. Lederer, D. Bacher, and S. Spackman. 1993. Pike and San Isabel National Forest and Comanche and Cimarron National Grasslands Plants of Special Concern. Unpublished report prepared for the U.S. Forest Service.
  • Knight, P.J. 1981a. Rare, threatened, endangered and other plants of concern to the Bureau of Land Management. Unpublished report.
  • Knight, P.J. 1981b. Status report for Astragalus humillimus. Unpublished report prepared for the New Mexico Department of Natural Resources Heritage Program, Santa Fe, NM.
  • Knight, P.J. 1981c. Status report for Sclerocactus mesae-verdae. Unpublished report prepared for the New Mexico Department of Natural Resources Heritage Program, Santa Fe, NM.
  • Knight, P.J. 1989. Mancos milkvetch recovery plan. Unpublished report prepared for the U.S. Fish and Wildlife Service, Albuquerque, NM.
    • L
  • Larson, G.E. 1993. Aquatic and wetland vascular plants of the northern Great Plains. General Technical Report RM-238. U.S. Forest Service, Rocky Mountain Forest and Range Experiment Station, Fort Collins, CO.
  • Lawrence, S. 1993. Endangered species petition for Astragalus microcymbus. Unpublished report prepared for the U.S. Fish and Wildlife Service, Washington, D.C.
  • Lefebvre, C. 1969. Self fertility in maritime and zinc mine populations of Armeria maritima. Evolution 24:571-577.
  • Lellinger, D.B. 1985. A Field Manual of the Ferns and Fern-allies of the United States and Canada. Smithsonian Institution Press, Washington D.C.
  • Linhart, Y.B. and A.C. Premoli. 1993. Genetic variation in Aletes acaulis and its relative, the narrow endemic A. humilis (Apiaceae). American Journal of Botany 80(5):598-605.
  • Locklear, J.H. 1989. Status of Ambrosia linearis in Colorado. Unpublished report prepared for the U.S. Fish and Wildlife Service, Golden, CO.
  • Locklear, J.H. 1990. A Colorado specialty: Ambrosia linearis. Colorado Native Plant Society. Aquilegia 14(5):10.
  • Locklear, J.H. 1991. Status of Asclepias uncialis in eastern Colorado and northeastern New Mexico. Unpublished report prepared for The Nature Conservancy Colorado Field Office, Boulder, CO.
  • Locklear, J.H. 1996. The biology, ecology, and conservation needs of Asclepias uncialis in Colorado. Unpublished report prepared for the Colorado Natural Areas Program, Denver, CO.
M
  • Mackenzie, K.K. 1940. North American Cariceae, Vol.II. The New York Botanical Garden, Bronx, NY.
  • McArthur, G.R. 1980. Special plant element abstract: Rorippa coloradensis. Unpublished report prepared for the Colorado Natural Areas Program, Denver, CO.
  • Munz, P.A. 1946. Aquilegia chrysantha var. rydbergii and A. micrantha var. mancosana. In: Aquilegia: the wild and cultivated columbines. Gentes Herbarum 7:136-137;128.
  • Munz, P.A. and D.D. Keck. 1959. A California Flora. University of California Press, Berkeley, CA.
    • N
  • Naumann, T.S. 1988. Revised status report for Eutrema penlandii. Unpublished report prepared for U.S. Fish and Wildlife, Golden, CO.
  • Naumann, T.S. 1990a. Inventory of plant species of special concern and the general flora of Dinosaur National Monument 1987-1989. Unpublished report prepared for the National Park Service, Denver, CO.
  • Naumann, T.S. 1990b. Status report for Astragalus ripleyi. Unpublished report prepared for U.S. Fish and Wildlife Service, Golden, CO.
  • Naumann, T.S. 1990c. Status report for Oxybaphus rotundifolius. Unpublished report prepared for U.S. Fish and Wildlife, Golden, CO.
  • Naumann, T.S. 1991. Status report for Frasera coloradensis. Unpublished report prepared for U.S. Fish and Wildlife, Golden, CO.
  • Neely, E.E. 1987. Astragalus humillimus inventory. Unpublished report prepared for the Colorado Natural Areas Program, Denver, CO.
  • Neese, E.C. 1986. New taxa and nomenclatural changes in Utah Penstemon (Scrophulariaceae). Great Basin Naturalist 46(3):459-460.
  • Nelson, A. 1902. Chenopodium cycloides. In: Contributions from the Rocky Mountain Herbarium IV. Botanical Gazette 34:363.
    • O
  • O’Kane, S.L. 1986. Endangered Species Information System Species Workbook Part VII. Unpublished report for the U.S. Fish and Wildlife Service, Golden, CO.
  • O’Kane, S.L. 1987a. Status report for Phacelia submutica. Unpublished report prepared for U.S. Fish and Wildlife Service, Golden, CO.
  • O’Kane, S.L. 1987b. Status report for Physaria obcordata. Unpublished report prepared for U.S. Fish and Wildlife Service, Golden, CO.
  • O’Kane, S.L. 1987c. Status report for Thalictrum heliophilum. Unpublished report prepared for U.S. Fish and Wildlife Service, Golden, CO.
  • O’Kane, S.L. 1988. Colorado’s rare flora. Great Basin Naturalist 48(4):434- 484.
  • O’Kane, S.L. 1990. A new species of Erigeron (Asteraceae: Astereae) from Colorado. Madroño 37(3):184-189.
  • O’Kane, S.L. and J.L. Anderson. 1987. Penstemon debilis (Scrophulariaceae): a new species from Colorado endemic to oil shale. Brittonia 39(4):412-416.
  • O’Kane, S.L., D.H. Wilken, and R.L. Hartman. 1988. Noteworthy Collections. Madroño 35(1):72-74.
  • Olwell, P. 1986. The Knowlton cactus. Audubon Wildlife Report, National Audubon Society: 943-949.
  • Olwell, P. and A. Schull. 1985. Endangered and threatened wildlife and plants; final rule to determine Astragalus humillimus to be endangered. Federal Register 50(124):26568-26572.
  • Osterhout, G. 1928. Astragalus linifolius. Bulletin of the Torrey Botanical Club 55:75.
    • P
  • Pavlick, L.E. and J. Looman. 1984. Taxonomy and nomenclature of rough fescues, Festuca altaica, F. campestris, and F. hallii, in Canada and the adjacent United States. Canadian Journal of Botany 62(8):1739-1749.
  • Payson, E.B. 1915. New and noteworthy plants from southwestern Colorado. Botanical Gazette 60:374-376.
  • Payson, E.B. 1922. Species of Sisymbrium native to America north of Mexico. University of Wyoming Publications in Science, Botany 1(1):1-27.
  • Penland, C.W.T. 1958. Two new species of Penstemon in Colorado. Madroño 14:153-160.
  • Pennell, F.W. 1920. Scrophulariaceae of the central Rocky Mountain States. Contributions from the National Herbarium 20:313-381.
  • Peterson, J.S. 1981a. Status report on Astragalus deterior. Unpublished report prepared for U.S. Fish and Wildlife Service, Golden, CO.
  • Peterson, J.S. 1981b. Status report on Astragalus schmolliae. Unpublished report prepared for U.S. Fish and Wildlife Service, Golden, CO.
  • Peterson, J.S. 1981c. Status report on Gilia pentstemonoides. Unpublished report prepared for U.S. Fish and Wildlife Service, Golden, CO.
  • Peterson, J.S. 1982. Threatened and endangered plants of Colorado. Unpublished report prepared for the U.S. Fish and Wildlife Service, Golden, CO.
  • Peterson, J.S. 1983a. Field inventory of selected areas of CO (Vol. II) plant species of special concern. Unpublished report prepared for the Colorado Natural Areas Program, Denver, CO.
  • Peterson, J.S. 1983b. Status report for Lupinus crassus. Unpublished report prepared for the Colorado Natural Areas Program, Denver, CO.
  • Peterson, J.S. 1983c. Status report of Mimulus gemmiparus. Unpublished report prepared for U.S. Fish and Wildlife Service, Golden, CO.
  • Peterson, J.S. 1983d. Status report on Parthenium tetraneuris. Unpublished report prepared for the Colorado Natural Areas Program, Denver, CO.
  • Peterson, J.S. and W.L. Baker. 1982. Inventory of the Piceance Basin, Colorado: threatened and endangered plants, plant associations, and the general flora. Unpublished report prepared for the Bureau of Land Management, Craig, CO.
  • Peterson, J.S. and W. Harmon. 1981a. Status report for Astragalus naturitensis. Unpublished report for U.S. Fish and Wildlife Service, Golden, CO.
  • Peterson, J.S. and W. Harmon. 1981b. Status report on Penstemon degeneri. Unpublished report prepared for the Colorado Natural Areas Program, Denver, CO.
  • Peterson, J.S. and W. Harmon. 1981c. Status report for Physaria bellii. Unpublished report prepared for U.S. Fish and Wildlife Service, Golden, CO.
  • Peterson, J.S., W. Harmon, and J.C. Kennison. 1981. Status report on Saussurea weberi. Unpublished report prepared for the U.S. Fish and Wildlife Service, Golden, CO.
  • Peterson, J.S, B.C. Johnston, and W. Harmon. 1981a. Status report on Neoparrya lithophila. Unpublished report prepared for the U.S. Fish and Wildlife Service, Golden, CO.
  • Peterson, J.S., B.C. Johnston, and W. Harmon. 1981b. Status report on Penstemon retrorsus. Unpublished report for the U.S. Fish and Wildlife Service, Golden, CO.
  • Peterson, J.S. and K.L. Wiley-Eberle. 1986. Phacelia formosula recovery plan. Unpublished report prepared for U.S. Fish and Wildlife Service, Golden, CO.
  • Phillips, B.G. 1988. Status Report Asplenium adiantum-nigrum. Unpublished report prepared for the U.S. Fish and Wildlife Service, Albuquerque, NM.
  • Price, R. 1985. Locality information for Draba (Brassicaceae) in Colorado. Unpublished report prepared for the Colorado Natural Areas Program, Denver, CO.
    • R
  • Reveal, J.L. 1969. A revision of the genus Eriogonum (Polygonacae). Brigham Young University, Provo, UT. Unpublished dissertation.
  • Reveal, J.L. 1973. A new subfruticose Eriogonum (Polygonaceae) from western Colorado. Great Basin Naturalist 33:120-122.
  • Reveal, J.L. 1981. Notes on endangered buckwheats (Eriogonum: Polygonaceae) with three newly described from the western United States. Brittonia 33(3):441-448.
  • Rollins, R.C. 1982. A new species of Asiatic Genus Stroganouia (Cruciferae) from North America and its biogeographic implications. Systematic Botany 7(2):214-220.
  • Rollins, R.C. 1993. The Cruciferae of Continental North America, Systematics of the Mustard Family from the Arctic to Panama. Stanford University Press, Stanford, CA.
  • Rouse, L. 1981. Element stewardship abstract for Lesquerella pruinosa. Unpublished report prepared for The Nature Conservancy, Colorado Field Office, Boulder, CO.
  • Rydberg, P.A. 1902. Aquilegia chrysantha var. rydbergii. In: Studies on the Rocky Mountain Flora. Bulletin of the Torrey Botanical Club 29:145-160, 232-246, 680-693.
  • Rydberg, P.A. 1905. Ambrosia linearis. In: Studies on the Rocky Mountain Flora XIV. Bulletin of the Torrey Botanical Club 32(3):123-138.
  • Rydberg, P.A. 1906. Flora of Colorado. Bulletin 100. Colorado Agricultural Experiment Station, Ft. Collins, CO.
  • Rydberg, P.A. 1913. Mimulus eastwoodiae. In: Studies on the Rocky Mountain Flora. Bulletin of the Torrey Botanical Club, 40:483- 484.
S
  • Scheck, C. 1994. Special status plants handbook Glenwood Springs Resource Area. Unpublished report prepared for the Bureau of Land Management, Glenwood Springs, CO.
  • Schulz K.A. and R. B. Shaw. 1992. Status of Haploppapus fremontii ssp. monocephalus (Asteraceae) in Colorado. Prairie Naturalist 24(3):143-148.
  • Schwendinger, R.B., G.K. Carlson, and C.O. Spielman. 1991. Status report of Eutrema penlandii as a result of field investigations in Park, Summit, Gunnison, Chaffee, and Clear Creek counties. Unpublished report prepared for the U.S. Fish and Wildlife Service, Golden, CO.
  • Sheviak, C.J. 1984. Spiranthes diluvialis (Orchidaceae), a new species from the western United States. Brittonia 36:8-14.
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