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Year Citation  Score
2020 Raven PH, Gereau RE, Phillipson PB, Chatelain C, Jenkins CN, Ulloa Ulloa C. The distribution of biodiversity richness in the tropics. Science Advances. 6. PMID 32917691 DOI: 10.1126/Sciadv.Abc6228  0.391
2020 Ceballos G, Ehrlich PR, Raven PH. Vertebrates on the brink as indicators of biological annihilation and the sixth mass extinction. Proceedings of the National Academy of Sciences of the United States of America. PMID 32482862 DOI: 10.1073/Pnas.1922686117  0.395
2020 Mora MM, Lowry II PP, Plunkett GM, Idárraga-Piedrahíta Á, Jiménez-Montoya J, Raven PH. Studies in Neotropical Araliaceae. V. Sciodaphyllum zarucchii (Araliaceae), a New Species from Antioquia, Colombia, Honoring James L. Zarucchi (1952–2019) Novon, a Journal For Botanical Nomenclature. 28: 94-99. DOI: 10.3417/2020540  0.316
2018 Carlquist S, Raven PH. Vestured Pits in Wood of Onagraceae: Correlations with Ecology, Habit, and Phylogeny Annals of the Missouri Botanical Garden. 103: 443-461. DOI: 10.3417/D1700001  0.313
2017 Ulloa Ulloa C, Acevedo-Rodríguez P, Beck S, Belgrano MJ, Bernal R, Berry PE, Brako L, Celis M, Davidse G, Forzza RC, Gradstein SR, Hokche O, León B, León-Yánez S, Magill RE, ... ... Raven PH, et al. An integrated assessment of the vascular plant species of the Americas. Science (New York, N.Y.). 358: 1614-1617. PMID 29269477 DOI: 10.1126/Science.Aao0398  0.631
2017 Pimm SL, Raven PH. The Fate of the World's Plants. Trends in Ecology & Evolution. PMID 28268023 DOI: 10.1016/J.Tree.2017.02.014  0.394
2016 Liu SH, Edwards C, Hoch PC, Raven PH, Barber JC. Complete Plastome Sequence of Ludwigia octovalvis (Onagraceae), a Globally Distributed Wetland Plant. Genome Announcements. 4. PMID 27856583 DOI: 10.1128/Genomea.01274-16  0.322
2014 Pimm SL, Jenkins CN, Abell R, Brooks TM, Gittleman JL, Joppa LN, Raven PH, Roberts CM, Sexton JO. The biodiversity of species and their rates of extinction, distribution, and protection. Science (New York, N.Y.). 344: 1246752. PMID 24876501 DOI: 10.1126/Science.1246752  0.38
2014 Raven P, Havens K. Ex situ plant conservation and cryopreservation: Breakthroughs in tropical plant conservation International Journal of Plant Sciences. 175: 1-2. DOI: 10.1086/674030  0.398
2013 Walters C, Berjak P, Pammenter N, Kennedy K, Raven P. Plant science. Preservation of recalcitrant seeds. Science (New York, N.Y.). 339: 915-6. PMID 23430644 DOI: 10.1126/Science.1230935  0.368
2012 Wheeler QD, Knapp S, Stevenson DW, Stevenson J, Blum SD, Boom BM, Borisy GG, Buizer JL, De Carvalho MR, Cibrian A, Donoghue MJ, Doyle V, Gerson EM, Graham CH, Graves P, ... ... Raven PH, et al. Mapping the biosphere: Exploring species to understand the origin, organization and sustainability of biodiversity Systematics and Biodiversity. 10: 1-20. DOI: 10.1080/14772000.2012.665095  0.355
2011 Raven PH, Chase JM, Pires JC. Introduction to special issue on biodiversity. American Journal of Botany. 98: 333-5. PMID 21613129 DOI: 10.3732/Ajb.1100055  0.667
2011 Tobe H, Raven PH. Embryology of the Irvingiaceae, a family with uncertain relationships among the Malpighiales. Journal of Plant Research. 124: 577-91. PMID 21116833 DOI: 10.1007/S10265-010-0393-7  0.307
2011 Raven PH. Plant Conservation in the Future: New Challenges, New Opportunities Plant Diversity. 33: 1-9. DOI: 10.3724/Sp.J.1143.2011.10255  0.307
2011 Smith GF, Roux JP(, Raven P, Figueiredo E. African Herbaria Support Transformation on the Continent1 Annals of the Missouri Botanical Garden. 98: 272-276. DOI: 10.3417/2010050  0.319
2009 Tippery NP, Les DH, Regalado JC, Averyanov LV, Long VN, Raven PH. Transfer of Villarsia cambodiana to nymphoides (Menyanthaceae) Systematic Botany. 34: 818-823. DOI: 10.1600/036364409790139673  0.375
2007 Raven PH, Yeates DK. Australian biodiversity: Threats for the present, opportunities for the future Australian Journal of Entomology. 46: 177-187. DOI: 10.1111/J.1440-6055.2007.00601.X  0.369
2006 Pimm S, Raven P, Peterson A, Sekercioglu CH, Ehrlich PR. Human impacts on the rates of recent, present, and future bird extinctions. Proceedings of the National Academy of Sciences of the United States of America. 103: 10941-6. PMID 16829570 DOI: 10.1073/Pnas.0604181103  0.364
2005 Yang QE, Zhu G, Hong D, Wu Z, Raven PH. World's largest flora completed. Science (New York, N.Y.). 309: 2163. PMID 16195443 DOI: 10.1126/Science.309.5744.2163B  0.353
2004 Bawa KS, Kress WJ, Nadkarni NM, Lele S, Raven PH, Janzen DH, Lugo AE, Ashton PS, Lovejoy TE. Tropical ecosystems into the 21st century. Science (New York, N.Y.). 306: 227-8. PMID 15472058 DOI: 10.1126/Science.306.5694.227B  0.314
2004 Wheeler QD, Raven PH, Wilson EO. Taxonomy: impediment or expedient? Science (New York, N.Y.). 303: 285. PMID 14726557 DOI: 10.1126/Science.303.5656.285  0.364
2004 Bawa KS, Seidler R, Raven PH. Reconciling conservation paradigms Conservation Biology. 18: 859-860. DOI: 10.1111/J.1523-1739.2004.01838.X  0.303
2003 Reveal JL, Raven PH, Hoch P, Haynes RR, Hellquist CB. (1603-1605) Proposals to conserve the name Ludwigia repens (Onagraceae) with a conserved type, and to reject the names Potamogeton oblongifolium and P. rotundifolium (Potamogetonaceae), all published in Forster's 1771 Flora Americae Septentrionalis Taxon. 52: 864-866. DOI: 10.2307/3647366  0.354
2003 Dirzo R, Raven PH. Global state of biodiversity and loss Annual Review of Environment and Resources. 28: 137-167. DOI: 10.1146/Annurev.Energy.28.050302.105532  0.336
2002 Huang H, Han X, Kang L, Raven P, Jackson PW, Chen Y. Conserving native plants in China. Science (New York, N.Y.). 297: 935-6. PMID 12171086 DOI: 10.1126/Science.297.5583.935B  0.352
2000 Pimm SL, Raven P. Extinction by numbers Nature. 403: 843-845. PMID 10706267 DOI: 10.1038/35002708  0.366
1993 Graham SA, Oginuma K, Raven PH, Tobe H. Chromosome numbers in Sonneratia and Duabanga (Lythraceae s.l.) and their systematic significance. Taxon. 42: 35-41. DOI: 10.2307/1223300  0.333
1992 Zardini E, Raven PH. A New Section of Ludwigia (Onagraceae) with a Key to the Sections of the Genus Systematic Botany. 17: 481. DOI: 10.2307/2419486  0.378
1991 Zardini EM, Gu H, Raven PH. On the Separation of Two Species within the Ludwigia uruguayensis Complex (Onagraceae) Systematic Botany. 16: 242. DOI: 10.2307/2419276  0.397
1990 Tobe H, Raven PH. Comparative Reproductive Morphology of "Orias" and Lagerstroemia (Lythraceae)1)1)Dedicated to Prof. Dr. H. Meusel on the occasion of his 80th birthday. Flora. 184: 177-185. DOI: 10.1016/S0367-2530(17)31607-9  0.393
1990 Oginuma K, Raven PH, Tobe H. Karyomorphology and relationships of Celtidaceae and Ulmaceae (Urticales) The Botanical Magazine = Shokubutsu-Gaku-Zasshi. 103: 113-131. DOI: 10.1007/Bf02489620  0.314
1989 Austin DF, Iwatsuki K, Raven PH, Bock WJ. Modern Aspects of Species. Bulletin of the Torrey Botanical Club. 116: 193. DOI: 10.2307/2997202  0.389
1988 Carr BL, Gregory DP, Raven PH, Tai W. Experimental Hybridization, Chromosomal Diversity, and Phylogeny Within Gaura sect. Pterogaura (Onagraceae) Systematic Botany. 13: 324. DOI: 10.2307/2419296  0.302
1988 Howard DJ, Iwatsuki K, Raven PH, Bock WJ. The Species Problem Evolution. 42: 1111. DOI: 10.2307/2408929  0.322
1988 Raven PH. TROPICAL FLORISTICS TOMORROW Taxon. 37: 549-560. DOI: 10.2307/1221098  0.385
1988 TOBE H, RAVEN PH. Floral morphology and evolution in Anisophylleaceae Botanical Journal of the Linnean Society. 98: 1-25. DOI: 10.1111/J.1095-8339.1988.Tb01691.X  0.319
1988 Tobe H, Raven PH. Seed Coat Anatomy and Relationships of Ludwigia Sects. Microcarpium, Dantia, and Miquelia (Onagraceae), and Notes on Fossil Seeds of Ludwigia from Europe Botanical Gazette. 149: 450-457. DOI: 10.1086/337739  0.388
1988 Carr BL, Gregory DP, Raven PH, Tai W. EXPERIMENTAL HYBRIDIZATION, CHROMOSOMAL DIVERSITY, AND PHYLOGENY WITHIN GAURA (ONAGRACEAE) American Journal of Botany. 75: 484-495. DOI: 10.1002/J.1537-2197.1988.Tb13466.X  0.338
1987 Tobe H, Raven PH. The Embryology and Relationships of Crypteronia (Crypteroniaceae) Botanical Gazette. 148: 96-102. DOI: 10.1086/337633  0.302
1986 Stone BC, Thomerson JE, Raven PH, Allmon WD, Robinson G. The Human Equation in Species Extinction Bioscience. 36: 524-526. DOI: 10.2307/1310153  0.303
1986 Tobe H, Raven PH, Graham SA. CHROMOSOME COUNTS FOR SOME LYTHRACEAE SENS. STR. (MYRTALES), AND THE BASE NUMBER OF THE FAMILY Taxon. 35: 13-20. DOI: 10.2307/1221033  0.333
1986 Averett JE, Hahn WJ, Berry PE, Raven PH. FLAVONOIDS AND FLAVONOID EVOLUTION IN FUCHSIA (ONAGRACEAE) American Journal of Botany. 73: 1525-1534. DOI: 10.1002/J.1537-2197.1986.Tb10902.X  0.641
1985 Dietrich W, Raven PH, Wagner WL. Revision of Oenothera sect. Oenothera subsect. Emersonia (Onagraceae) Systematic Botany. 10: 29. DOI: 10.2307/2418433  0.423
1985 Daghlian CP, Skvarla JJ, Pocknall D, Raven PH. Fuchsia pollen from the early Miocene of New Zealand. American Journal of Botany. 72: 1039-1047. DOI: 10.1002/J.1537-2197.1985.Tb08348.X  0.382
1984 Tobe H, Raven PH. The Embryology and Relationships of Alzatea Ruiz & Pav. (Alzateaceae, Myrtales) Annals of the Missouri Botanical Garden. 71: 844. DOI: 10.2307/2399167  0.345
1984 Tobe H, Raven PH. The Embryology and Relationships of Rhynchocalyx Oliv. (Rhynchocalycaceae) Annals of the Missouri Botanical Garden. 71: 836. DOI: 10.2307/2399166  0.341
1984 Nowicke JW, Skvarla JJ, Raven PH, Berry PE. A Palynological Study of the Genus Fuchsia (Onagraceae) Annals of the Missouri Botanical Garden. 71: 35. DOI: 10.2307/2399056  0.614
1984 Daghlian CP, Skvarla JJ, Pocknall DT, Raven PH. Epilobium pollen from Oligocene sediments in New Zealand. New Zealand Journal of Botany. 22: 285-294. DOI: 10.1080/0028825X.1984.10425256  0.345
1984 Tobe H, Raven PH. The embryology and relationships of Penaeaceae (Myrtales) Plant Systematics and Evolution. 146: 181-195. DOI: 10.1007/Bf00989545  0.33
1984 Tobe H, Raven PH. The embryology and relationships of Oliniaceae Plant Systematics and Evolution. 146: 105-116. DOI: 10.1007/Bf00984057  0.316
1983 Patel V, Skvarla JJ, Raven PH. HALF PSEUDOCOLPI, A UNIQUE FEATURE OF OLINIA (OLINIACEAE) POLLEN American Journal of Botany. 70: 469-473. DOI: 10.1002/J.1537-2197.1983.Tb06414.X  0.319
1982 Keating RC, Hoch PC, Raven PH. Perennation in Epilobium (Onagraceae) and Its Relation to Classification and Ecology Systematic Botany. 7: 379. DOI: 10.2307/2418673  0.336
1982 Breedlove DE, Berry PE, Raven PH. The Mexican and Central American Species of Fuchsia (Onagraceae) Except for Sect. Encliandra Annals of the Missouri Botanical Garden. 69: 209. DOI: 10.2307/2398791  0.63
1981 Raven PH. A southern biota. Science (New York, N.Y.). 214: 1337-8. PMID 17812253 DOI: 10.1126/Science.214.4527.1337  0.31
1980 Malloch DW, Pirozynski KA, Raven PH. Ecological and evolutionary significance of mycorrhizal symbioses in vascular plants (A Review). Proceedings of the National Academy of Sciences of the United States of America. 77: 2113-8. PMID 16592806 DOI: 10.1073/Pnas.77.4.2113  0.39
1980 Funk VA, Raven PH. POLYPLOIDY IN MONTANOA CERV. (COMPOSITAE, HELIANTHEAE) Taxon. 29: 417-419. DOI: 10.2307/1220628  0.397
1979 Stubbe W, Raven PH. Genetic Self-Incompatibility in Oenothera subsect Euoenothera. Science (New York, N.Y.). 204: 327. PMID 17800360 DOI: 10.1126/Science.204.4390.327  0.301
1979 Raven PH, Dietrich W, Stubbe W. An Outline of the Systematics of Oenothera Subsect. Euoenothera (Onagraceae) Systematic Botany. 4: 242. DOI: 10.2307/2418422  0.377
1979 Raven PH. A survey of reproductive biology in Onagraceae New Zealand Journal of Botany. 17: 575-593. DOI: 10.1080/0028825X.1979.10432572  0.388
1979 Stubbe W, Raven PH. A genetic contribution to the taxonomy of Oenothera sect. Oenothera (including subsections Euoenothera, Emersonia, Raimannia and Munzia) Plant Systematics and Evolution. 133: 39-59. DOI: 10.1007/Bf00985878  0.424
1978 Sussman RW, Raven PH. Pollination by lemurs and marsupials: an archaic coevolutionary system. Science (New York, N.Y.). 200: 731-6. PMID 17743224 DOI: 10.1126/Science.200.4343.731  0.308
1978 Seavey SR, Raven PH. Chromosomal evolution in Epilobium sect. Epilobium (Onagraceae), III. Plant Systematics and Evolution. 130: 79-83. DOI: 10.1007/Bf00983075  0.358
1978 Tomb AS, Chambers KL, Kyhos DW, Powell AM, Raven PH. CHROMOSOME NUMBERS IN THE COMPOSITAE. XIV. LACTUCEAE American Journal of Botany. 65: 717-721. DOI: 10.1002/J.1537-2197.1978.Tb06129.X  0.313
1977 Seavey SR, Raven PH. Chromosomal Differentiation and the Sources of the South American Species of Epilobium (Onagraceae) Journal of Biogeography. 4: 55. DOI: 10.2307/3038128  0.4
1977 Raven PH. Erythrina symposium II. Erythrina (Fabaceae: Faboideae): Introduction to symposium II Lloydia. 40: 401-406. DOI: 10.2307/2398835  0.406
1977 Raven PH. Perspectives in Tropical Botany: Concluding Remarks Annals of the Missouri Botanical Garden. 64: 746. DOI: 10.2307/2395298  0.317
1977 Raven PH, Parnell DR. Reinterpretation of the Type of Godetia bottae Spach (Onagraceae) Annals of the Missouri Botanical Garden. 64: 642. DOI: 10.2307/2395260  0.357
1977 Raven PH. A New Species of Lopezia (Onagraceae) from Sinaloa, Mexico Annals of the Missouri Botanical Garden. 64: 638. DOI: 10.2307/2395259  0.326
1977 West KR, Raven PH. Novelties in australian epilobium (onagraceae) New Zealand Journal of Botany. 15: 503-509. DOI: 10.1080/0028825X.1977.10432557  0.421
1977 Hair JD, Raven PH, Seavey SR. Cytological affinities of the australasian species of epilobium (onagraceae) New Zealand Journal of Botany. 15: 1-4. DOI: 10.1080/0028825X.1977.10429613  0.432
1977 Seavey SR, Raven PH. Chromosomal evolution inEpilobium sect.Epilobium (Onagraceae) Plant Systematics and Evolution. 127: 107-119. DOI: 10.1007/Bf00984145  0.383
1976 Raven PH. Generic and Sectional Delimitation in Onagraceae, Tribe Epilobieae Annals of the Missouri Botanical Garden. 63: 326. DOI: 10.2307/2395311  0.448
1976 Ordnuff R, Raven PH, Raven TE. The Genus Epilobium in Australasia, a Systematic and Evolutionary Study Taxon. 25: 656. DOI: 10.2307/1220130  0.347
1975 Skvarla JJ, Raven PH, Praglowski J. THE EVOLUTION OF POLLEN TETRADS IN ONAGRACEAE. American Journal of Botany. 62: 6-35. PMID 30139106 DOI: 10.1002/J.1537-2197.1975.Tb12334.X  0.352
1975 Chase VC, Raven PH. EVOLUTIONARY AND ECOLOGICAL RELATIONSHIPS BETWEEN AQUILEGIA FORMOSA AND A. PUBESCENS (RANUNCULACEAE), TWO PERENNIAL PLANTS. Evolution; International Journal of Organic Evolution. 29: 474-486. PMID 28563190 DOI: 10.1111/J.1558-5646.1975.Tb00837.X  0.368
1975 Arroyo MTK, Raven PH. THE EVOLUTION OF SUBDIOECY IN MORPHOLOGICALLY GYNODIOECIOUS SPECIES OF FUCHSIA SECT. ENCLIANDRA (ONAGRACEAE). Evolution; International Journal of Organic Evolution. 29: 500-511. PMID 28563181 DOI: 10.1111/J.1558-5646.1975.Tb00839.X  0.395
1974 Anderson LC, Kyhos DW, Mosquin T, Powell AM, Raven PH. CHROMOSOME NUMBERS IN COMPOSITAE. IX. HAPLOPAPPUS AND OTHER ASTEREAE American Journal of Botany. 61: 665-671. DOI: 10.1002/J.1537-2197.1974.Tb12286.X  0.354
1973 Johnson MP, Raven PH. Species number and endemism: the galapagos archipelago revisited. Science (New York, N.Y.). 179: 893-5. PMID 17832770 DOI: 10.1126/Science.179.4076.893  0.412
1973 Raven PH. Evolution of subalpine and alpine plant groups in new zealand New Zealand Journal of Botany. 11: 177-200. DOI: 10.1080/0028825X.1973.10430272  0.368
1973 Dement WA, Raven PH. Distribution of the chalcone, isosalipurposide, in the onagraceae Phytochemistry. 12: 807-808. DOI: 10.1016/0031-9422(73)80682-X  0.366
1972 Heinrich B, Raven PH. Energetics and pollination ecology. Science (New York, N.Y.). 176: 597-602. PMID 17778157 DOI: 10.1126/Science.176.4035.597  0.336
1972 Plitmann U, Raven PH, Breedlove DE. New Taxa and Recombinations in Lopezia (Onagraceae) Annals of the Missouri Botanical Garden. 59: 279. DOI: 10.2307/2394759  0.356
1972 Raven PH. Plant Species Disjunctions: A Summary Annals of the Missouri Botanical Garden. 59: 234. DOI: 10.2307/2394756  0.386
1972 Solbrig OT, Kyhos DW, Powell M, Raven PH. CHROMOSOME NUMBERS IN COMPOSITAE VIII: HELIANTHEAE American Journal of Botany. 59: 869-878. DOI: 10.1002/J.1537-2197.1972.Tb10162.X  0.366
1971 Raven PH, Kyhos DW, Cave MS. CHROMOSOME NUMBERS AND RELATIONSHIPS IN ANNONIFLORAE Taxon. 20: 479-483. DOI: 10.2307/1218249  0.354
1971 Raven PH, Engelhorn T. A plea for the collection of common plants New Zealand Journal of Botany. 9: 217-222. DOI: 10.1080/0028825X.1971.10430177  0.34
1971 Raven PH, Engelhorn T. New taxa and new combinations in australasian epilobium (onagraceae) New Zealand Journal of Botany. 9: 345-350. DOI: 10.1080/0028825X.1971.10429146  0.377
1970 Moore DM, Raven PH. CYTOGENETICS, DISTRIBUTION, AND AMPHITROPICAL AFFINITIES OF SOUTH AMERICAN CAMISSONIA (ONAGRACEAE). Evolution; International Journal of Organic Evolution. 24: 816-823. PMID 28564951 DOI: 10.1111/J.1558-5646.1970.Tb01817.X  0.377
1969 Raven PH. Summary of the Symposium Bioscience. 19: 796-798. DOI: 10.2307/1294789  0.366
1968 Raven PH, Kyhos DW, Breedlove DE, Payne WW. Polyploidy in Ambrosia dumosa (Compositae: Ambrosieae) Brittonia. 20: 205-211. DOI: 10.2307/2805443  0.388
1968 Johnson MP, Mason LG, Raven PH. Ecological Parameters and Plant Species Diversity The American Naturalist. 102: 297-306. DOI: 10.1086/282544  0.391
1967 Ornduff R, Mosquin T, Kyhos DW, Raven PH. CHROMOSOME NUMBERS IN COMPOSITAE. VI. SENECIONEAE. II American Journal of Botany. 54: 205-213. DOI: 10.1002/J.1537-2197.1967.Tb06910.X  0.366
1966 Berlin B, Breedlove DE, Raven PH. Folk taxonomies and biological classification. Science (New York, N.Y.). 154: 273-5. PMID 17810308 DOI: 10.1126/Science.154.3746.273  0.348
1966 Carlquist S, Raven PH. THE SYSTEMATICS AND ANATOMY OF GONGYLOCARPUS (ONAGRACEAE) American Journal of Botany. 53: 378-390. DOI: 10.1002/J.1537-2197.1966.Tb07350.X  0.419
1965 Raven P. Notes on the Flora of San Clemente Island, California Aliso. 6: 11-11. DOI: 10.5642/Aliso.19650601.03  0.315
1965 Raven PH, Kyhos DW. NEW EVIDENCE CONCERNING THE ORIGINAL BASIC CHROMOSOME NUMBER OF ANGIOSPERMS Evolution. 19: 244-248. DOI: 10.1111/J.1558-5646.1965.Tb01710.X  0.406
1964 Raven PH. The generic subdivision of Onagraceae, tribe Onagreae Brittonia. 16: 276-288. DOI: 10.2307/2805062  0.394
1964 Ehrlich PR, Raven PH. BUTTERFLIES AND PLANTS: A STUDY IN COEVOLUTION Evolution. 18: 586-608. DOI: 10.1111/J.1558-5646.1964.Tb01674.X  0.322
1964 Payne WW, Raven PH, Kyhos DW. CHROMOSOME NUMBERS IN COMPOSITAE. IV. AMBROSIEAE American Journal of Botany. 51: 419-424. DOI: 10.1002/J.1537-2197.1964.Tb06651.X  0.407
1963 Raven P. A Flora of San Clemente Island, California Aliso. 5: 289-347. DOI: 10.5642/Aliso.19630503.08  0.314
1963 Raven PH. Amphitropical Relationships in the Floras of North and South America The Quarterly Review of Biology. 38: 151-177. DOI: 10.1086/403797  0.377
1963 Ornduff R, Raven PH, Kyhos DW, Kruckeberg AR. CHROMOSOME NUMBERS IN COMPOSITAE. III. SENECIONEAE American Journal of Botany. 50: 131-139. DOI: 10.1002/J.1537-2197.1963.Tb07188.X  0.358
1962 Epling C, Lewis H, Raven P. Chromosomes of Salvia: Section Audibertia Aliso. 5: 217-221. DOI: 10.5642/Aliso.19620502.09  0.741
1962 Kurabayashi M, Lewis H, Raven PH. A COMPARATIVE STUDY OF MITOSIS IN THE ONAGRACEAE American Journal of Botany. 49: 1003-1026. DOI: 10.1002/J.1537-2197.1962.Tb15040.X  0.644
1960 Raven P, Lewis H. Observations on the Chromosomes and Relationships of Hauya and Xylonagra Aliso. 4: 483-484. DOI: 10.5642/Aliso.19600403.03  0.659
1959 Raven PH, Lewis H. The relationship of clarkias from two continents Brittonia. 11: 193-205. DOI: 10.2307/2805005  0.702
1958 Lewis H, Raven PH. Clarkia franciscana, a new species from Central California Brittonia. 10: 7-13. DOI: 10.2307/2804688  0.686
1958 Lewis H, Raven PH. Rapid Evolution in Clarkia Evolution. 12: 319. DOI: 10.1111/J.1558-5646.1958.Tb02962.X  0.642
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