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Adams, J.E. 1940. A systematic study of the genus Arctostaphylos Adans. Journal of the Elisha Mitchell Scientific Society 56(1): 1 - 62. [Ericaceae]

Aellen, P. & T. Just. 1943. Key and synopsis of the American species of the genus Chenopodium L. American Midland Naturalist 30: 47 - 76. [Chenopodiaceae]

Ahrendt, L.W.A. 195? Berberis and Mahonia: a taxonomic revision. Journ. Linn. Soc. - Botany 57: 1 - 355 (parts). [Berberidaceae]

Aiken, S.G. 1981. A conspectus of Myriophyllum (Haloragaceae) in North America. Brittonia 33(1): 57 - 69. [Haloragaceae]

Aiken, S.G. & A. Cronquist. 1988. Lectotypification of Myriophyllum sibiricum Komarov (Haloragaceae). Taxon 37(4): 958 - 966. [Haloragaceae]

Allen, G.A. 1985. The hybrid origin of Aster ascendens (Asteraceae). American Journal of Botany 72(2): 268 - 277. [Asteraceae]

Allen, G.A., M.L. Dean, & K.L. Chambers. 1983. Hybridization studies in the Aster occidentalis (Asteraceae) polyploid complex of western North America. Brittonia 35(4): 353 - 361. [Asteraceae]

Allred, K.W. 1982. Describing the grass inflorescence. Journal of Range Management 35(5): 672 - 675. [Poaceae]

Alverson, E.R. 1989. Cryptogramma cascadensis, a new parsley - fern from western North America. American Fern Journal 79: 95 - 102. [Cryptogrammaceae]

Anderson, L.C. 1963. Studies on Petradoria (Compositae): anatomy, cytology, taxonomy. Transactions of the Kansas Academy of Science 66(4): 632 - 684. [Asteraceae]

Anderson, L.C. 1966. Cytotaxonomic studies in Chrysothamnus (Astereae, Compositae). American Journal of Botany 53(2): 204 - 212. [Asteraceae]

Anderson, L.C. & P.S. Weberg. 1974. The anatomy and taxonomy of Vanclevea (Asteraceae). Great Baasin Naturalist 34(2): 151 - 160. [Asteraceae]

Anderson, L.C. 1978. New taxa in Chrysothamnus, section nauseosi (Asteraceae). Phytologia 38(4): 309 - 320. [Asteraceae]

Anderson, L.C. 1980. Identity of narrow-leaved Chrysothamnus viscidiflorus (Asteraceae). Great Basin Naturalist 40(2): 117 - 120. [Asteraceae]

Anderson, L.C. 1981. The genus Chrysothamnus in Colorado. unpublished. [Asteraceae]

Anderson, L.C. 1984. Chrysothamnus nauseosus ssp. uintahensis: a stabilized hybrid. Great Basin Naturalist 44(3): 416 - 420. [Asteraceae]

Anderson, L.C. 198?. Chrysothamnus key to the species. unpublished. [Asteraceae]

Andresen, J.W. & R.J. Steinhoff. 1971. The taxonomy of Pinus flexilis and P. strobiformis. Phytologia 22(2): 57 - 67. [Pinaceae]

Anonymous. 1938. Apocynaceae: Apocynum. North American Flora 29: 188 - 192. [Apocynaceae]

Anonymous. 1962. Quercus ajoensis in Colorado. The Southwestern Naturalist 7: 269 - 270. [Fagaceae]

Anonymous. 1982. Virgulus Raf. vis-a-vis Aster L. (Asteraceae). Taxon 31: 714 - 715. [Asteraceae]

Anonymous. 1984. Cactaceae of Colorado. unpublished. [Cactaceae]

Anonymous. 1988. Typification of Chaenactis alpina (Asteraceae). Madrono 35: 161 - 162. [Asteraceae]

Anonymous. 1988. Chenopodium simplex, an older name for C. gigantospermum (Chenopodiaceae). Madrono 35: 162.[Chenopodiaceae]

Anonymous. ????. Ericaceae: Heath Family. (A key) . Unpublished. [Ericaceae]

Applegate, E.I. 1935. The genus Erythronium: a taxonomic and distributional study of the western North American species. Madrono 3(2): 58 - 113. [Liliaceae]

Arp, G.K. & D.J. Rogers. 1970. A computer aided classification of the varieties of Pediocactus simpsonii (Engelm.) B.& R. Cactus and Succulent Journal 42: 40 - 43. [Cactaceae]

Arp, G.K. 1972. A revision of Pediocactus. Cactus and Succulent Journal 44: 218 - 222. [Cactaceae]

Arp, G.K. 1973. Studies in the Colorado cacti IV. Cactus and Succulents Journal 45: 56 - 57. [Cactaceae]

Arp, G.K. 1973. Studies in the Colorado cacti V. Cactus and Succulents Journal 45: 132 - 133. [Cactaceae]

Arp, G.K. 1973. Studies in the Colorado cacti VI. Cactus and Succulent Journal 45: 219 - 221. [Cactaceae]

Arp, G.K. 1984. Opuntia heacockae (Cactaceae) a new species from central Colorado. SIDA Contributions to Botany 10(3): 207 - 210. [Cactaceae]

Ashri, A. 1973. Divergence and evolution in the Safflower genus Carthamus L. Final Research Report U.S.D.A. P.L. 480: 1 - 180. [Asteraceae]

Atwood, N.D. 1975. A revision of the Phacelia Crenulatae group (Hydrophyllaceae) for North America. The Great Basin Naturalist 35(2): 127 - 190. [Hydrophyllaceae]

Babcock, E.B. 1947. The genus Crepis: Part I - the taxonomy, phylogeny, distribution, and evolution of Crepis. University of California Publications in Botany 21: 1 - 197. [Asteraceae]

Babcock, E.B. 1947. The genus Crepis: Part II - Systematic treatment. University of California Publications in Botany 22: 199 - 1030. [Asteraceae]

Babcock, E.B. & G.L. Stebbins, Jr. 1939. Crepis exilis and C. atribarba, a correction. Carnegie Institution of Washington Publication 504. [Asteraceae]

Bailey, D.K. 1987. A study of Pinus subsection Cembroides I: the single-needle pinyons of the Californias and the Great Basin. Notes from the Royal Botanic Garden Edinburgh 44(2): 275 - 310. [Pinaceae]

Bailey, D.K. 1988. The single-needle Pinyons - one taxon or three? Natural History of the White-Inyo Range 2: 69 - 91. [Pinaceae]

Ballard, R. 1986. Bidens pilosa complex (Asteraceae) in North and Central America. American Journal of Botany 73(10): 1452 - 1465. [Asteraceae]

Barkley, F.A. 1937. A monographic study of Rhus and its immediate allies in North and Central America, including the West Indies. Annals of the Missouri Botanical Garden 24(3): 265 - 414. [Anacardiaceae]

Barkley, T.M. 1960. A revision of Senecio integerrimus Nuttall and allied species. Leaflets of Western Botany 9(7): 97 - 113. [Asteraceae]

Barkley, T.M. 1962. A revision of Senecio aureus Linn. and allied species. Transactions of the Kansas Academy of Science 65 : 318 - 408. [Asteraceae]

Barkley, T.M. 1978. Senecio. North American Flora 2(10): 50 - 139. [Asteraceae]

Barkley, T.M. 1980. Taxonomic notes on Senecio tomentosus and its allies (Asteraceae). Brittonia 32(3): 291 - 308. [Asteraceae]

Barkley, T.M. 1981. Senecio and Erechtites (Compositae) in the North American flora: supplementary notes. Brittonia 33(4): 523 - 527. [Asteraceae]

Barkley, T.M. 1985. Generic boundaries in the Senecioneae. Taxon 34(1): 17 - 21. [Asteraceae]

Barkley, T.M. 1990. A geo-historical perspective on the distribution and variation in Senecio s. l. (Asteraceae, Senecioneae) in Mexico and C. America. Plant Systematic Evolution Suppl. 4: 113 - 119. [Asteraceae]

Barkworth, M.E., D.R. Dewey, & R.J. Atkins. 1983. New generic concepts in the Triticeae of the Intermountain region: key and comments. Great Basin Naturalist 43(4): 561 - 572. [Poaceae]

Barkworth, M.E. & R.J. Atkins. 1984. Leymus hochst. (Gramineae: Triticeae) in North America: taxonomy and distribution. American Journal of Botany 71(5): 609 - 625. [Poaceae]

Barkworth, M.E. & D.R. Dewey. 1985. Genomically based genera in the perennial Triticeae of North America: identification and membership. American Journal of Botany 72(5): 767 - 776. [Poaceae]

Barneby, R.C. 1952. A revision of the North American species of Oxytropis DC. Proceedings of the California Academy of Sciences 27(7): 177 - 312. [Fabaceae]

Barneby, R.C. 1964. Atlas of North American Astragalus. Memoirs of the New York Botanical Garden 13: Part 1. [Fabaceae]

Barneby, R.C. 1964. Atlas of North American Astragalus. Memoirs of the New York Botanical Garden 13: Part II. [Fabaceae]

Barneby, R.C. 1977. Dalea Imageres. Memoirs of the New York Botanical Garden 27: 1 - 892. [Fabaceae]

Baum, B.R., J.R. Estes, & P.K. Gupta. 1987. Assessment of the genomic system of classification in the Triticeae. American Journal of Botany 74(9): 1388 - 1395. [Poaceae]

Bayer, R.J. & G.L. Stebbins. 1981. Chromosome numbers of North American species of Antennaria Gaertner (Asteraceae: Inuleae). American Journal of Botany 68(10): 1342 - 1349. [Asteraceae]

Bayer, R.J. 1987. Morphometric analysis of western North American Antennaria (Asteraceae: Inuleae). I. Sexual species of Alpinae, Dioicae, and Plantaginifoliae. Canadian Journal of Botany 65: 2389 - 2395. [Asteraceae]

Bayer, R.J. 1988. Typification of western North American Antennaria Gaertner (Asteraceae: Inuleae); sexual species of sections Alpinae, Dioicae, and Plantaginifoliae. Taxon 37(2): 292 - 298. [Asteraceae]

Beaman, J.H. 1957. The systematics and evolution of Townsendia (Compositae). Contributions from the Gray Herbarium of Harvard University 183: 1 - 151. [Asteraceae]

Beaman, J.H. 1990. Revision of Hieracium (Asteraceae) in Mexico and Central America. Systematic Botany Monographs 29: 1 - 77. [Asteraceae]

Beatley, J.C. 1973. Russian-thistle (Salsola) species in western United States. Journal of Range Management 26(3): 225 - 226. [Chenopodiaceae]

Beckmann, R.L. Jr. 1979. Biosystematics of the genusHydrophyllum L. (Hydrophyllaceae). American Journal of Botany 66(9): 1053 - 1061. [Hydrophyllaceae]

Beetle, A.A. & A. Young. 1965. A third subspecies in the Artemisia tridentata complex. Rhodora 67: 405 - 406. [Asteraceae]

Beetle, A.A. 1938. Eleocharis in the Rocky Mountain region. University of Wyoming Publications 5(3): 19 - 27. [Cyperaceae]

Beetle, A.A. 1940. Studies in the genus Scirpus L. I. Delimination of the subgenera Euscirpus and Aphylloides. American Journal of Botany 27(2): 63-64. [Cyperaceae]

Beetle, A.A. 1941. Studies in the genus Scirpus L. II. the section Baeothryon Ehrh. American Journal of Botany 28(6): 469 - 476. [Cyperaceae]

Beetle, A.A. 1941. Studies in the genus Scirpus L. III. the American species of the section Lacustres Clarke. American Journal of Botany 28(8): 691 - 700. [Cyperaceae]

Beetle, A.A. 1942. Studies in the genus Scirpus L. IV. the section Bolboschoenus Palla. American Journal of Botany 29(1): 82 - 88. [Cyperaceae]

Beetle, A.A. 1942. Studies in the genus Scirpus L. V. notes on the section Actaeogeton Reich. American Journal of Botany 29(8): 653 - 656. [Cyperaceae]

Beetle, A.A. 1943. Studies in the genus Scirpus L. VI. the section Schoenoplectus Palla. American Journal of Botany 30(6): 395 - 401. [Cyperaceae]

Beetle, A.A. 1944. Studies in the genus Scirpus VII. conspectus of sections represented in the Americas. American Journal of Botany 31(5): 261 - 265. [Cyperaceae]

Beetle, A.A. 1960. A Study of Sagebrush : the section Tridentatae of Artemisia. University of Wyoming Agricultural Experiment Station Bulletin 368: 1 - 83. [Asteraceae]

Beidleman, R.G. 1960. The Colorado blue spruce. The Green Thumb 17(3): 81 - 84. [Pinaceae]

Benson, L. 1940. The cacti of Arizona. University of Arizona Biological Science Bulletin 4: 6 - 134. [Cactaceae]

Benson, L. 1941. The mesquites and screw-beans of the United States. American Journal of Botany 28(9): 748 - 754. [Fabaceae]

Benson, L. 1961. A revision and amplification of Pediocactus I. Cactus and Succulent Journal 33(2): 49 - 54. [Cactaceae]

Benson, L. 1962. A revision and amplification of Pediocactus parts II and III. Cactus and Succulent Journal 34(1): 17 - 61. [Cactaceae]

Benson, L. 1962. A revision and amplification of Pediocactus part IV. Cactus and Succulent Journal 34(6): 163 - 168. [Cactaceae]

Benson, L. 1966. A revision of Sclerocactus. Cactus and Succulent Journal 38: 50 - 57; 100 - 106. [Cactaceae]

Berger, A. 1924. A taxonomic review of currants an gooseberries. New York State Agricultural Experiment Station Technical Bulletin 109: 3 - 118. [Grossulariaceae]

Biddulph, S.F. 1944. A revision of the genus Gaillardia. Research Studies of the State College of Washington 12(4): 195 - 256. [Asteraceae]

Bierner, M.W. 1974. A systematic study of Dugaldia (Compositae). Brittonia 26:385 - 392. [Asteraceae]

Blasdell, R.F. 1963. A monographic study of the fern genus Cystopteris. Memoirs of the Torrey Botanical Club 21(4): 1 - 102. [Dryopteridaceae]

Bogin, C. 1955. Revision of the genus Sagittaria (Alismataceae). Memoirs of the New York Botanical Garden 9(2): 179 - 233. [Alismataceae]

Boivin, B. 1956. Stellaria sectio Umbellatae schischkin (Caryophyllaceae). Svensk Botanisk Tidskrift 50(1): 113 - 114. [Caryophyllaceae]

Bookman, S.S. 1981. The floral morphology of Asclepias speciosa (Asclepiadaceae) in relation to pollination and a clarification in terminology for the genus. American Journal of Botany 68(5): 675 - 679. [Asclepiadaceae]

Boufford, D.E. 1983. The systematics and evolution of Circaea (Onagraceae). Annals of the Missouri Botanical Garden 69(4): 804 - 994. [Onagraceae]

Bretting, P.K. 1983. The taxonomic relationship between Proboscidea louisianica and Proboscidea fragrans (Martyniaceae). The Southwestern Naturalist 28(4): 445 - 449. [Martyniaceae]

Bretting, P.K. 1985. Nomenclatural changes in Proboscidea (Martyniaceae). The Southwestern Naturalist 30(1): 150 - 152. [Martyniaceae]

Britton, D.M. 1972. Spinulose wood ferns Dryopteris, in western North America. The Canadian Field Naturalist 86: 241 - 247. [Dryopteridaceae]

Brooks, R.E. 1980. Additions to the Pteridophyte Flora of the Great Plains. American Fern Journal 70: 91 - 92. [Ophioglossaceae]

Brown, G.K. 1983. Chromosome numbers in Platyschkuria Rydberg (Compositae) and their systematic significance. American Journal of Botany 70(4): 591 - 601. [Asteraceae]

Camp, W.H. 1942. A survey of the American species of Vaccinium subgenus Euvaccinium. Brittonia 4(2): 205 - 247. [Ericaceae]

Canne, J.M. 1977. A revision of the genus Galinsoga (Compositae: Heliantheae). Rhodora 79: 319 - 378. [Asteraceae]

Canne, J.M. 1978. Circumscription and generic relationships of Galinsoga (Compositae: Heliantheae). Madrono 25(2): 81 - 93. [Asteraceae]

Card, H.H. 1931. A revision of the genus Frasera. Annals of the Missouri Botanical Garden 18: 245 - 282. [Gentianaceae]

Ceska, A. & O. Ceska. 1986. Notes on Myriophyllum (Haloragaceae) in the Far East: the identity of Myriophyllum sibiricum Komarov. Taxon 35(1): 95 - 100.

Chambers, K.L. 1955. A biosystematic study of the annual species of Microseris. Contributions ffrom the Dudley Herbarium 4(7): 207 - 312. [Asteraceae]

Channell, R.B. 1957. A revisional study of the genus Marshallia. Contributions from the Gray Herbarium of Harvard University 181: 41 - 132. [Asteraceae]

Cholewa, A.F. & D.M. Henderson. 1984. Biosystematics of Sisyrinshium section Bermudiana (Iridaceae) of the Rocky Mountains. Brittonia 36(4): 342 - 363. [Iridaceae]

Chuang, T. & L. Constance. 1969. A systematic study of Perideridia (Umbelliferae - Apioideae). University of California Publications in Botany 55: 1 - 74. [Apiaceae]

Clark, C. 1975. Ecogeographic races of Lesquerella engelmannii (Cruciferae): distribution, chromosome numbers, and taxonomy. Brittonia 27: 263 - 278. [Brassicaceae]

Clausen, R.T. 1938. A monograph of the Ophioglossaceae. Memoirs of the Torrey Botanical Club 19(2): 1 - 177. [Ophioglossaceae]

Clokey, I.W. 1919. Carex notes. Rhodora, Journal of the New England Botanical Club 21: 83 - 85. [Cyperceae]

Cockerell, T.D.A. 1907. A new Mertensia from Colorado. Muhlenbergia 3: 68. [Boraginaceae]

Coleman, J.R. 1974. Verbesina section Ximenesia (Compositae): biosystematics and adaptive variation. American Journal of Botany 61(1): 25 - 35. [Asteraceae]

Constance, L. 1937. A systematic study of the genus Eriophyllum Lag. University of California Publications in Botany 18(5): 69 - 136. [Asteraceae]

Constance, L. & R.H. Shan. 1948. The genus Osmorhiza (Umbelliferae): a study in geographic affinities. University of California Publications in Botany 23(3): 111 - 156. [Apiaceae]

Constance, L. 1949. A revision of Phacelia subgenus Cosmanthus (Hydrophyllaceae). Contributions from the Gray Herbarium of Harvard University 168: 3 - 48. [Hydrophyllaceae]

Cook, C.D.K. & K. Urmi-Konig. 1985. A revision of the genus Elodea (Hydrocharitaceae). Aquatic Botany 21: 111 - 156. [Hydrocharitaceae]

Correll, D.S. 1943. The genus Habenaria in western North America. Leaflets of Western Botany 3(11): 233 - 247. [Orchidaceae]

Correll, D.S. & M.C. Johnston. 1970. Manual of the vascular plants of Texas: Liliaceae. Texas Research Foundation Publication: 389 - 390. [Liliaceae]

Coulter, J.M. & J.N. Rose. 1900. Monograph of the North American Umbelliferae. Contributions from the U.S. National Herbarium 7(1): 1 - 256. [Apiaceae]

Coville, F.V. 1896. Juncus confusus, a new rush from the Rocky Mountain region. Proceedings of the Biological Society of Washington 10: 127 - 130. [Juncaceae]

Crawford, D.J. 1975. Systematic relationships in the narrow-leaved species of Chenopodium of the western United States. Brittonia 27: 279 - 288. [Chenopodiaceae]

Crawford, D.J. 1977. A study of morphological variability in Chenopodium incanum (Chenopodiaceae) and the recognition of two new varieties. Brittonia 29: 291 - 296. [Chenopodiaceae]

Critchfield, W.B. 1986. Hybridization and classification of the white pines (Pinus section Strobus). Taxon 35(4): 647 - 656. [Pinaceae]

Critchfield, W.B. & E.L. Little, Jr. 1966. Geographic distribution of the pines of the world. U.S. Department of Agriculture Miscellaneous Publication 991: 1 - 97. [Pinaceae]

Croat, T. 1972. Solidago canadensis complex of the Great Plains. Brittonia 24: 317 - 326. [Asteraceae]

Croizat, L. 1945. "Euphorbia Esula" in North America. American Midland Naturalist 33(1): 231 - 243. [Euphorbiaceae]

Cronquist, A. 1943. Revision of the Western North American species of Aster centering about Aster foliaceus Lindl. The American Midland Naturalist 29(2): 429 - 468. [Asteraceae]

Cronquist, A. 1943. The separation of Erigeron from Conyza. Bulletin of the Torrey Botanical Club 70(6): 629 - 632. [Asteraceae]

Cronquist, A. 1943. The North American species of Erigeron centering about E. speciosus (Lindl.) DC. an E. glabellus Nutt. Bulletin of the Torrey Botanical Club 70(3): 265 - 274. [Asteraceae]

Cronquist, A. 1943. The identity of Aster salsuginosus Richardson. Rhodora 45: 262 - 264. [Asteraceae]

Cronquist, A. 1947. Revision of the North American species of Erigeron, north of Mexico. Brittonia 6(2): 121 - 302. [Asteraceae]

Cronquist, A. & D.D. Keck. 1957. A reconstitution of the genus Machaeranthera. Brittonia 9(4): 231 - 239. [Asteraceae]

Cronquist, A. 1963. Two new varieties in Machaeranthera. Leaflets of Western Botany 10(1): 11 - 13. [Asteraceae]

Crow, G.E. 1978. A taxonomic revision of Sagina (Caryophyllaceae) in North America. Rhodora 80: 1 - 91. [Caryophyllaceae]

Crow, G.E. & C.B. Hellquist. 1985. Aquatic vascular plants of New England: Part 8. Lentibulariaceae. New Hampshire Agricultural Experiment Station Bulletin 528: 1 - 19. [Lentibulariaceae]

Cutler, H.C. 1939. Monograph of the North American species of the genus Ephedra. Annals of the Missouri Botanical Garden 26: 373 - 428. [Ephedraceae]

Darlington, J. 1934. A monograph of the genus Mentzelia. Annals of the Missouri Botanical Garden 21(1): 103 - 226. [Loasaceae]

Daubenmire, R. 1974. Taxonomic and ecologic relationships between Picea glauca and Picea engelmannii. Canadian Journal of Botany 52(7):1545 - 1560. [Pinaceae]

Dean, M.L. & K.L. Chambers. 1983. Chromosome numbers and evolutionary patterns in the Aster occidentalis (Asteraceae) polyploid complex of western North America. Brittonia 35(3): 189 - 196. [Asteraceae]

Denton, M.F. 1973. A monograph of Oxalis, section Ionoxalis (Oxalidaceae) in North America. Biological Series 4(10): 459 - 615. [Oxalidaceae]

Detling, L.E. 1939. A revision of the North American species of Descurainia. The American Midland Naturalist 22(3): 481 - 520. [Brassicaceae]

Detling, L.E. 1951. The cespitose lupines of Western North America. The American Midland Naturalist 45(2): 474 - 499. [Fabaceae]

de Vries, I.M. & C.E. Jarvis. 1987. Typification of seven Linnaean names in the genus Lactuca L. (Compositae: Lactuceae). Taxon 36: 142 - 154. [Asteraceae]

Dewey, D.R. 1983. Historical & current taxonomic perspectives of Agropyron, Elymus, and related genera. Crop Science 23: 637 - 642. [Poaceae]

Dewey, D.R. 1983. New nomenclatural combinations in the North American perennial Triticeae (Gramineae). Brittonia 35(1): 30 - 33. [Poaceae]

Dietrich, W. & W.L. Wagner. 1988. Systematics of Oenothera section Oenothera subsection Raimannia and subsection Nutantigemma (Onagraceae). Systematic Botany Mongraphs 24: 1 - 91. [Onagraceae]

Dorn, R.D. 1972. The nomenclature of Isoetes echinospora and Isoetes muricata. American Fern Journal 62: 80 - 81. [Isoetaceae]

Dorn, R.D. & R.L. Hartman. 1988. Notes: nomenclature of Lomatium nuttallii, L. kingii, and L. megarrhizum (Apiaceae). Madrono 35(1): 70 - 71. [Apiaceae]

Drury, W.H. & R.C. Rollins. 1952. The North American representatives of Smelowskia (Cruciferae). Rhodora 54: 85 - 119. [Brassicaceae]

Dugle, J.R. 1966. A taxonomic study of western Canadian species in the genus Betula. Canadian Journal of Botany 44: 929 - 1007. [Betulaceae]

Dunford, M.P. 1986. Chromosome relationships of diploid species of Grindelia (Compositae) from Colorado, New Mexico, and adjacent areas. American Journal of Botany 73(2): 297 - 303. [Asteraceae]

Dunn, D.B. 1957. A revision of the Lupinus arbustus complex of the Laxiflori. Madrono 14(2): 54 - 73. [Fabaceae]

Dunn, D.B. 1959. Lupinus pusillus and its relationship. The American Midland Naturalist 62(2): 500 - 510. [Fabaceae]

Dunn, D.B. 1965. Lupinus notes III: a reevaluation and redefinition of the Lupinus perennis L. complex. Leaflets of Western Botany 10(9): 151 - 154. [Fabaceae]

Eastwood, A. 1934. A revision of Arctostaphylos with key and descriptions. Leaflets of Western Botany 1(11): 105 - 127. [Ericaceae]

Ebinger, J.E. 1974. A systematic study of the genus Kalmia (Ericaceae). Rhodora 76: 315 - 341. [Ericaceae]

Elisens, W.J. & J.G. Packer. 1980. A contribution to the taxonomy of the Oxytropis campestris complex in northwestern North America. Canadian Journal of Botany 58: 1820 - 1831. [Fabaceae]

Ellison, W.L. 1964. A systematic study of the genus Bahia (Compositae). Rhodora 66: 67 - 86, 178 - 311. [Asteraceae]

Ellison, W.L. 1971. Taxonomy of Platyschkuhria (Compositae). Brittonia 23: 269 - 279. [Asteraceae]

Epling, C.C. 1925. Monograph of the genus Monardella. Annals of the Missouri Botanical Garden 12: 1 - 106. [Lamiaceae]

Epling, C.C. 1925. Studies on South American Labiatae I. Annals of the Missouri Botanical Garden 12: 107 - 132. [Lamiaceae]

Epling, C.C. 1940. A revision of Salvia, subgenus Calosphace. Publications of the University of California at Los Angeles in Biological Sciences 2: 1 - 383. [Lamiaceae]

Epling, C.C. 1942. The American species of Scutellaria. University of California Publications in Botany 20(1): 1 - 146. [Lamiaceae]

Evans, R.A. & J.A. Young. 1980. Establishment of barbwire Russian thistle in desert environments. Journal of Range Management 33(3): 169 - 173. [Chenopodiaceae]

Ewan, J. 1945. Sources of the fern flora of Colorado. American Fern Journal 35: 114 - 128. [Pteridophyta]

Ewan, J. 1942. A review of the North American weedy Heliotropes. Bulletin of the Southern California Academy of Sciences 41: 51 - 57. [Boraginaceae]

Fassett, N.C. 1935. Notes from the Herbarium of the University of Wisconsin XII: A study of Streptopus. Rhodora 37: 89 - 113. [Liliaceae]

Fernald, M.L. 1945. Some North American Corylaceae (Betulaceae). Contributions from the Gray Herbarium of Harvard University 159: 303 - 361. [Betulaceae]

Galloway, L.A. 1975. Systematics of the North American desert species of Abronia and Tripterocalyx (Nyctaginaceae). Brittonia 27: 328 - 347. [Nyctaginaceae]

Gardner, R.C. 1974. Systematics of Cirsium (Compositae) in Wyoming. Madrono 22: 239 - 265. [Asteraceae]

Gates, R.R. 1917. A systematic study of the North American genus Trillium, its variability and its relation to Paris and Medeola. Annals of the Missouri Botanical Garden 4: 43 - 92. [Liliaceae]

Gentry, J.L. 1972. A new combination and a new name in Hackelia (Boraginaceae). Madrono 21: 490. [Boraginaceae]

Gentry, J.L. 1974. Studies in the genus Hackelia (Boraginaceae) in the western United States and Mexico. The Southwestern Naturalist 19(2): 139 - 146. [Boraginaceae]

Gentry, J.L. & R.L. Carr. 1976. A revision of the genus Hackelia (Boraginaceae) in North America, North of Mexico. Memoirs of the New York Botanical Garden 26(1): 121 - 227. [Boraginaceae]

Gillett, G.W. 1968. Systematic relationships in the cosmanthus phacelias (Hydrophyllaceae). Brittonia 20(4): 368 - 374. [Hydrophyllaceae]

Gillett, J.M. & H.A. Senn. 1960. Cytotaxonomy and infraspecific variation of Agropyron smithii Rydb. Canadian Journal of Botany 38: 747 - 760. [Poaceae]

Gillis, W.T. 1971. The systematics and ecology of poison ivy and the poison oaks (Toxicodendron, Anacardiaceae). Rhodora Journal of the New England Botanical Club 73(794): 161 - 402. [Anacardiaceae]

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Shinners, L.H. 1946. Revision of the genus Leucelene Greene. Wrightia 1(2): 82 - 89. [Asteraceae]

Shinners, L.H. 1946. Revision of the genus Kuhnia L. Wrightia 1(2): 122 - 144. [Asteraceae]

Shinners, L.H. 1947. Revision of the genus Krigia Schreber. Wrightia 1(3): 187 - 206. [Asteraceae]

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Smith, C.P. 1938. Paper two: A preliminary catalog of the lupines of Baja California and Sonora. Species Lupinorum 2: 22 - 32. [Fabaceae]

Smith, C.P. 1938. Paper three: A preliminary survey of the lupines of Northern Mexico, exclusive of Sonora and Baja California. Species Lupinorum 3-4: 33 -54. [Fabaceae]

Smith, C.P. 1938. Paper four: A preliminary survey of the lupines of Southern Mexico. Species Lupinorum 4-6: 54 - 89. [Fabaceae]

Smith, C.P. 1938. Paper five: The lupines of Central America, south of Mexico. Species Lupinorum 6: 89 - 93. [Fabaceae]

Smith, C.P. 1938- 1939. Paper six: The genus Lupinus in Venezuela. Species Lupinorum 6-7: 94 - 104. [ Fabaceae]

Smith, C.P. 1939. Paper seven: Some local lupines of Oregon. Species Lupinorum 7: 104 - 109. [Fabaceae]

Smith, C.P. 1939. Paper eight: Lupinus leucopsis Agardh. Species Lupinorum 7: 110 - 112. [Fabaceae]

Smith, C.P. 1939. Paper nine: Lupini hintoniani. Species Lupinorum 8: 113 - 118. [Fabaceae]

Smith, C.P. 1939 - 1940. Paper ten: A distributional catalog of Lupinus in Arizona. Species Lupinorum 8-9: 119 - 143. [Fabaceae]

Smith, C.P. 1940. Paper eleven: miscellany one. Species Lupinorum 9: 143 - 144. [Fabaceae]

Smith, C.P. 1940. Paper twelve: Miscellany two. Species Lupinorum 10: 145 - 150. [Fabaceae]

Smith, C.P. 1940. Paper thirteen: The South American shrubby or bushy lupines with the upper calyx-lip bidentate or entire. Species Lupinorum 10-12: 150 - 191. [Fabaceae]

Smith, C.P. 1940. Paper fourteen: Miscellany three. Species Lupinorum 12: 191 - 192. [Fabaceae]

Smith, C.P. 1940. Paper fifteen: The genus Lupinus in Chile. Species Lupinorum 13: 193 - 202. [Fabaceae]

Smith, C.P. 1940. Paper sixteen: The digitate-leaved lupines of Middle-Eastern South America. Species Lupinorum 13-15: 202 - 228. [Fabaceae]

Smith, C.P. 1940. Paper seventeen: Catalog of published specific names, supplement I. Species Lupinorum 15: 228 - 229. [Fabaceae]

Smith, C.P. 1940. Paper eighteen: Lupini penlandiani. Species Lupinorum 15: 229 - 235. [Fabaceae]

Smith, C.P. 1940. Paper nineteen: Lupini thompsoniani I. Species Lupinorum 15: 235 - 238. [Fabaceae]

Smith, C.P. 1940. Paper twenty: Miscellany four. Species Lupinorum 15: 238 - 240. [Fabaceae]

Smith, C.P. 1941. Paper twenty-one: Lupini ballsiani. Species Lupinorum 16: 241 - 247. [Fabaceae]

Smith, C.P. 1941. Paper twenty-two: First supplemental paper on Mexican lupines. Species Lupinorum 16: 248 - 251. [Fabaceae]

Smith, C.P. 1941. Paper twenty-three: Second supplemental paper on Mexican lupines. Species Lupinorum 16: 251 - 256. [Fabaceae]

Smith, C.P. 1941. Paper twenty-four: L. luteolus south of San Francisco Bay. Species Lupinorum 16: 256. [Fabaceae]

Smith, C.P. 1941. Paper twenty-five: A first report on the genus Lupinus in Peru. Species Lupinorum 17-19: 257 - 304. [Fabaceae]

Smith, C.P. 1942. Paper twenty-six: Third supplemental paper on Mexican lupines. Species Lupinorum 20: 305 - 309. [Fabaceae]

Smith, C.P. 1942. Paper twenty-seven: Fourth supplemental paper on Mexican lupines. Species Lupinorum 20: 310. [Fabaceae]

Smith, C.P. 1942. Paper twenty-eight: Departmental index for Peruvian lupines on pages 257 - 304. Species Lupinorum 20: 310 - 311. [Fabaceae]

Smith, C.P. 1942. Paper twenty-nine: a preliminary checklist of the lupines of Glenn County, CA. Species Lupinorum 20: 312 - 313. [Fabaceae]

Smith, C.P. 1942. Paper thirty: A preliminary checklist of the lupines of Lake County, CA. Species Lupinorum 20: 313 - 317. [Fabaceae]

Smith, C.P. 1942. Paper thirty-one: Lupini davisiani I. Species Lupinorum 20: 317 - 320. [Fabaceae]

Smith, C.P. 1943 - 1944. Paper thirty-two: the genus Lupinus in Argentina. Species Lupinorum 21-23: 321 - 363. [Fabaceae]

Smith, C.P. 1944. Paper thirty-three: The genus Lupinus in Ecuador. Species Lupinorum 23-25: 364 - 390. [Fabaceae]

Smith, C.P. 1944. Paper thirty-four: the lupines of the Charleston Mountains. Species Lupinorum 25: 390 - 400. [Fabaceae]

Smith, E.C. & L.W. Durrell. 1944. Sedges and rushes of Colorado. Colorado Agricultural Experiment Station Technical Bulletin 32: 3 - 63. [Juncaceae]

Smith, J.G. 1894. North American species of Sagittaria an Lophotocarpus. Sixth Annual Report of the Missouri Botanical Garden 6: 1 - 38. [Alismataceae]

Smith, J.P., Jr. 1990. A key to the genera of California grasses. Department of Biological Sciences Humboldt State University: 1 - 15. [Poaceae]

Smith, J.P., Jr. 1990. Studies in California grasses: I. an annotated checklist of the indigenous, adventive, and escaped ornamental grasses of California. Humboldt State University Herbarium Department of Biological Sciences: 1 - 31. [Poaceae]

Smith, J.P., Jr. 1990. Studies in California Grasses. II. A checklist with limited synonymy. Humboldt State University Herbarium Department of Biological Sciences: 1 - 28. [Poaceae]

Snow, N. 1990. The distribution of Frankenia jamesii Torr. ex Gray (Frankeniaceae) in the Great Plains. Prairie Nat. 22(3): 211 - 214. [Frankeniaceae]

Solbrig, O.T. 1960. Cytotaxonomic and evolutionary studies in the North American species of Gutierrezia (Compositae). Contributions from the Gray Herbarium of Harvard University 188: 3 - 63. [Asteraceae]

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