Iltis, H. H., J. C. Hall, and K. J. Sytsma. (in press). Studies in Cleomaceae I. On the separate recognition of Capparaceae, Cleomaceae, and Brassicaceae. Taxon.

Graham, S. A., J. Hall, S. Shi, and K. J. Sytsma. 2005. Phylogenetic analysis of the Lythraceae based on four gene regions and morphology. International Journal of Plant Sciences 166: 995-1017.

Chase, M. W., M. F. Fay, D. S. Devey, O. Maurin, N. RØnsted, J. Davies, Y. Pillon, G. Petersen, O. Seberg, M. N. Tamura, C. B. Asmussen, K. Hilu, T. Borsch, J. I. Davis, D. W. Stevenson, J. C. Pires, T. J. Givnish, K. J. Sytsma, S. W. Graham, M. M. McPherson, and H. S. Rai. 2005. Multi-gene analyses of monocot relationships: a summary. In: J. T. Columbus, E. A. Friar, C. W. Hamilton, J. M. Porter, L. M. Prince, and M. G. Simpson (eds.) Monocots: Comparative Biology and Evolution (3 volumes). Rancho Santa Ana Botanic Garden, Claremont, CA.

Givnish, T. J., J. C. Pires, S. W. Graham, M. A. McPherson, L. M. Prince, T. B. Patterson, H. S. Rai, E. H. Roalson, T. M. Evans, W. J. Hahn, K. C. Millam, A. W. Meerow, M. Molvray, P. J. Kores, H. E. O’Brien, J. C. Hall, W. J. Kress, and K. J. Sytsma. 2005. Phylogeny of the monocots based on the highly informative cpDNA gene ndhF: evidence for widespread concerted convergence. Pp. 27-50 In: J. T. Columbus, E. A. Friar, C. W. Hamilton, J. M. Porter, L. M. Prince, and M. G. Simpson (eds.) Monocots: Comparative Biology and Evolution (vol. 1). Rancho Santa Ana Botanic Garden, Claremont, CA.

Pires, J. C., I. J. Maureira, T. J. Givnish, K. J. Sytsma, O. Seberg, G. Petersen, J. I. Davis, and D. W. Stevenson. 2005. Phylogeny, genome size, and chromosome evolution in Asparagales. Pp. 285-302 In: J. T. Columbus, E. A. Friar, C. W. Hamilton, J. M. Porter, L. M. Prince, and M. G. Simpson (eds.) Monocots: Comparative Biology and Evolution (vol. 1). Rancho Santa Ana Botanic Garden, Claremont, CA.

Givnish, T. J., K. C. Millam, P. E. Berry, and K. J. Sytsma. 2005. Phylogeny, adaptive radiation, and historical biogeography of Bromeliaceae inferred from ndhF sequence data. In: J. T. Columbus, E. A. Friar, C. W. Hamilton, J. M. Porter, L. M. Prince, and M. G. Simpson (eds.) Monocots: Comparative Biology and Evolution (3 volumes). Rancho Santa Ana Botanic Garden, Claremont, CA.

Rodriguez, A. and K. J. Sytsma. 2005. Phylogenetics of the “Tiger-flower” group (Tigridieae: Iridaceae) based on molecular and morphological evidence. Pp. 412-424 In: J. T. Columbus, E. A. Friar, C. W. Hamilton, J. M. Porter, L. M. Prince, and M. G. Simpson (eds.) Monocots: Comparative Biology and Evolution (vol. 1). Rancho Santa Ana Botanic Garden, Claremont, CA.

Givnish, T. J., J. C. Pires, S. W. Graham, M. A. McPherson, L. M. Prince, T. B. Patterson, H. S. Rai, E. H. Roalson, T. M. Evans, W. J. Hahn, K. C. Millam, A. W. Meerow, M. Molvray, P. J. Kores, H. E. O’Brien, J. C. Hall, W. J. Kress, and K. J. Sytsma. 2005. Repeated evolution of net venation and fleshy fruits among monocots in shaded habitats confirms a priori predictions: evidence from an ndhF phylogeny. Proceedings of the Royal Society of London, Biological Sciences 272: 1481-1490.

Schönenberger, J., A. A. Anderberg, and K. J. Sytsma. 2005. Molecular phylogenetics and patterns of floral evolution in the Ericales. International Journal of Plant Sciences 166:265-288.

Hall, J. C., H. H Iltis, and K. J. Sytsma. 2004. Molecular phylogenetics of Core Brassicales, placement of orphan genera Forchhammeria, Tirania, Emblingia, and character evolution. Systematic Botany 29: 654-669. [pdf]

Sytsma, K.J., A. Litt, M.L. Zjhra, J.C. Pires, M. Nepokroeff, E. Conti, Jay Walker, and P.G. Wilson. 2004. Clades, clocks, and continents: historical and biogeographical analysis of Myrtaceae, Vochysiaceae, and relatives in the southern hemisphere. International Journal of Plant Sciences 165 (4 Suppl.): S85-S105. [pdf]

Givnish, T. J., K. C. Millam, T. M. Evans, J. C. Hall, J.C. Pires, P. E. Berry, and K. J. Sytsma. 2004. Ancient vicariance or recent long-distance dispersal? Inferences about phylogeny and South American-African disjunctions in Rapateaceae and Bromeliaceae based on ndhF sequence data. International Journal of Plant Sciences 165 (4 suppl.): S35-S54. [pdf]

Conti, E., F. Rutschmann, T. Eriksson, K. J. Sytsma, and D. A. Baum. 2004. Calibration of molecular clocks and the biogeographic history of Crypteroniaceae: a reply to Moyle. Evolution 58: 1874-1876. [pdf]

Walker, J.B, K.J. Sytsma, J. Treutlein, and M. Wink. 2004. Salvia (Lamiaceae) is not monophyletic: implications for the systematics, radiation, and ecological specializations of Salvia and tribe Mentheae. American Journal of Botany 91: 1115-1125. [pdf]

Berry, P.E., W.J. Hahn, K.J. Sytsma, J.C. Hall, and A. Mast. 2004. Phylogenetic relationships and biogeography of Fuchsia (Onagraceae) based on non-coding nuclear and chloroplast DNA data. American Journal of Botany 91: 601-614. [pdf]

Hipp, A. L, J. C. Hall, and K. J. Sytsma. 2004. Phylogenetic accuracy, congruence between data partitions, and performance of the ILD. Systematic Biology 53: 81-89. [pdf]

Zjhra, M. L., K. J. Sytsma, and R. Olmstead. 2004. Circumscription and placement of Malagasy Coleeae (Bignoniaceae). Plant Systematics and Evolution 245: 55-67.[pdf]

Levin, R. A., W. L. Wagner, W. J. Hahn, P. C. Hoch, D. A. Baum, L. Katinas, E. A. Zimmer, and K. J. Sytsma. 2004. Paraphyly in tribe Onagreae: insights into phylogenetic relationships of Onagraceae based on nuclear and chloroplast sequence DNA. Systematic Botany 29:147-164. [pdf]

Nepokroeff, M., K. J. Sytsma, W. L Wagner, and E. A. Zimmer. 2003. Reconstructing ancestral patterns of colonization and dispersal in the Hawaiiaan understory tree genus Psychotria (Rubiaceae) : a comparison of parsimony and likelihood approaches. Systematic Biology 52: 820-838. [pdf]

Evans, T. M., K. J. Sytsma, R. B. Faden, and T. J. Givnish. 2003. Phylogenetic relationships in the Commelinaceae: II. A cladistic analysis of rbcL sequences and morphology. Systematic Botany 28: 270-292. [pdf]

Angiosperm Phylogeny Group [APG]. 2003. An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG II. Bot. J. Linn. Soc. 141: 399-436.

Levin, R. A., W. L. Wagner, P. C. Hoch, M. Nepokroeff, J. C. Pires, E. A. Zimmer, and K. J. Sytsma. 2003. Family-level relationships of Onagraceae based on chloroplast rbcL and ndhF data. American Journal of Botany 90: 107-115. [pdf]

Hall, J. C. K. J. Sytsma, and H. H. Iltis. 2002. Phylogeny of Capparaceae and Brassicaceae based on chloroplast sequence data. American Journal of Botany 89: 1826-1842. [pdf]

Conti, E., T. Eriksson, J. Schönenberger, K. J. Sytsma, and D. A. Baum. 2002. Early Tertiary "Out-of-India" dispersal of Crypteroniaceae: evidence from phylogeny and molecular dating. Evolution 56: 1931-1942. [pdf]

Sytsma, K. J., J. Morawetz, J. C. Pires, M. Nepokroeff, E. Conti, M. Zjhra, J. C. Hall, and M. W. Chase. 2002. Urticalean Rosids: circumscription, Rosid ancestry, and phylogenetics based on rbcL, trnLF, and ndhF sequences. American Journal of Botany 89: 1531-1546. [pdf]

Pires, J. C. and K. J. Sytsma. 2002. Evaluating the phylogenetic framework that has guided biosystematic research among Brodiaea and related lilioid monocots (Themidaceae). American Journal of Botany 89: 1342-1359. [pdf]

Delwiche, C. F., K. G. Karol, M. T. Cimino, and K. J. Sytsma. 2002. Phylogeny of the genus Coleochaete (Coleochaetales, Charophyceae) and related taxa inferred by analysis of the chloroplast gene rbcL. Journal of Phycology 38: 394-403. [pdf]

Berry, P. E., V. Savolainen, K. J. Sytsma, J. C. Hall, and M. W. Chase. 2001. Lissocarpa is sister to Diospyros (Ebenaceae). Kew Bulletin 56: 725-729.

Pires, J. C., M. F. Fay, W. S. Davis, L. Hufford, J. Rova, M. W. Chase, and K. J. Sytsma. 2001. Molecular and morphological phylogenetic analyses of Themidaceae (Asparagales). Kew Bulletin 56: q601-626.

Sytsma, K. J. and J. C. Pires. 2001. Plant systematics in the next 50 years‹re-mapping the new frontier. Taxon 50: 713-732.

Sytsma, K. J. and W. J. Hahn. 2000. Molecular systematics: 1997-1999. Progress in Botany 62: 307-339.

Givnish, T. J., T. M. Evans, M. L. Zjhra, P. E. Berry, and K. J. Sytsma. 2000. Molecular evolution, adaptive radiation, and geographic diversification in the amphiatlantic family Rapateaceae: evidence from ndhF sequence data. Evolution 54: 1915-1937. [pdf]

Ballard, H. E. and K. J. Sytsma. 2000. Evolution and biogeography of the woody Hawaiian violets (Viola, Violaceae): arctic origins, herbaceous ancestry, and bird dispersal. Evolution 54: 1521-1532. [pdf]

Chase, M. W., D. E. Soltis, P. S. Soltis, P. J. Rudall, M. F. Fay, W. H. Hahn, S. Sullivan, J. Joseph, M. Molvray, P. J. Kores, T. J. Givnish, K. J. Sytsma, and J. C. Pires. 2000. Higher-level systematics of the monocotyledons: an assessment of current knowledge and a new classification. Pp. 3-16 in (K. L. Wilson and D. A. Morrison, eds.) Monocots: Systematics and Evolution. CSIRO Publ., Sydney, Australia.

Evans, T. M., R. B. Faden, and K. J. Sytsma. 2000. Homoplasy in the Commelinaceae: a comparison of different classes of morphological characters. Pp. 557-568 in (K. L. Wilson and D. A. Morrison, eds.) Monocots: Systematics and Evolution. CSIRO Publ., Sydney, Australia.

Kercher, S. M. and K. J. Sytsma. 2000. Genetic and morphological variation in populations of the rare prairie annual Agalinus skinneriana (Wood) Britton (Scrophulariaceae). Natural Areas Journal 20: 166-175.

Evans, T. M., R. B. Faden, M. G. Simpson, and K. J. Sytsma. 2000. Phylogenetic relationships in the Commelinaceae: I. A cladistic analysis of morphological data. Systematic Botany 25:668-691. [pdf]

Hahn, W. J. and K. J. Sytsma. 1999. Molecular systematics and biogeography of the southeast Asian genus Caryota (Palmae). Systematic Botany 24: 558-580.

Nepokroeff, M. and K.J. Sytsma. 1999. Evolution in cloud forest members of Psychotria section Notopleura, Rubiaceae. Pp. 75-78 in (N. Nadkarni and N. Wheelwright, eds.) Natural History of the Monteverde Cloud Forest Preserve. Oxford University Press.

Givnish, T. J., T. M. Evans, J. C. Pires, and K. J. Sytsma. 1999. Polyphyly and convergent morphological evolution in Commelinales and Commelinidae: evidence from rbcL sequence data. Molecular Phylogenetics and Evolution 12: 360-385. [pdf]

Nepokroeff, M., B. Bremer, and K. J. Sytsma. 1999. Reorganization of the genus Psychotria and tribe Psychotrieae (Rubiaceae) inferred from ITS and rbcL sequence data. Systematic Botany 24: 5-27.

Karol, K. G., J. E. Rodman, E. Conti, and K. J. Sytsma. 1999. Nucleotide sequence of rbcL and phylogenetic relationships of Setchellanthus caeruleus (Setchellanthaceae). Taxon 48: 303-315.

Ballard, H. E., Jr., K. J. Sytsma, and R. R. Kowal. 1998. Shrinking the violets: phylogenetic relationships of infrageneric groups in Viola (Violaceae) based on Internal Transcribed Spacer DNA sequences. Systematic Botany 23: 439-458. [pdf]

Qiu, Y.-L., M. W. Chase, S. B. Hoot, E. Conti, P. R. Crane, K. J. Sytsma, and C. R. Parks. 1998. Phylogenetics of the Hamamelidae and their allies: parsimony analyses of nucleotide sequendes of the plastid gene rbcL. International Journal of Plant Sciences 159: 891-905. [pdf]

APG [The Angiosperm Phylogeny Group]. 1998. An ordinal classification for the families of flowering plants. Annals Missouri Bot. Gard. 85: 531-553.

Rodman, J. E., P. S. Soltis, D. E. Soltis, K. J. Sytsma, and K. G. Karol. 1998. Parallel evolution of glucosinolate biosynthesis inferred from congruent nuclear and plastid gene phylogenies. American Journal of Botany 85: 997-1006. [pdf]

Alverson, W. S., K. G. Karol, D. A. Baum, M. W. Chase, S. M. Swenson, R. McCourt, and K. J. Sytsma. 1998. Circumscription of the Malvales and relationships to other Rosidae: evidence from rbcL sequence data. American Journal of Botany 85: 876-887. [pdf]

Wiegrefe, S.J., K.J. Sytsma, and R.P. Guries. 1998. The Ulmaceae, one family or two? Evidence from chloroplast DNA restriction site mapping. Plant Systematics Evolution 210: 249-270.

Conti, E., A. Litt, P. G. Wilson, S. A. Graham, B. G. Briggs, L. A. S. Johnson, and K.J. Sytsma. 1997. Interfamilial relationships in Myrtales: molecular phylogeny and patterns of morphological evolution. Systematic Botany 22: 629-647. [pdf]

Givnish, T.J. and K.J. Sytsma (eds.). 1997. Molecular Evolution and Adaptive Radiation. Cambridge University Press. New York, NY.

Givnish, T.J., K.J. Sytsma, J.F. Smith, W.J. Hahn, D.H. Benzing, and E.M. Burkhardt. 1997. Molecular evolution and adaptive radiation atop tepuis in Brocchinia (Bromeliaceae: Pitcairnioideae). Pp. 259-311 in T.J. Givnish and K.J. Sytsma (eds.) Molecular Evolution and Adaptive Radiation. Cambridge University Press. New York, NY.

Givnish, T.J. and K.J. Sytsma. 1997. Homoplasy in molecular vs. morphological data: the likelihood of correct phylogenetic inference. Pp. 55-101 in T.J. Givnish and K.J. Sytsma (eds.) Molecular Evolution and Adaptive Radiation. Cambridge University Press. New York, NY.

Givnish, T.J. and K.J. Sytsma. 1997. Consistency, characters, and the likelihood of correct phylogenetic inference. Molecular Phylogenetics and Evolution 7: 320-333. [pdf]

Soltis, D. E., P. S. Soltis, D. L. Nickrent, L. A. Johnson, W. J. Hahn, S. B. Hoot, J. A. Sweere, R. K. Kuzoff, K. A. Kron, M. W. Chase, S. M. Swensen, E. A. Zimmer, S. -M. Chaw, L. J. Gillespie, W. J. Kress, and K. J. Sytsma. 1997. Angiosperm phylogeny inferred from 18S ribosomal DNA sequences. Annals of the Missouri Botanical Garden 84: 1-49.

Rodriguez, A., O. Vargas-P., E. Villegas-F., and K. J. Sytsma. 1996. Nuevos informes de Iridaceas (Tigridieae) en Jalisco. Boletin, IBUG 4: 39-47.

Rodman, J. E., K. G. Karol, R. A. Price, K. J. Sytsma. 1996. Molecules, morphology, and Dahlgren¹s expanded order Capparales. Systematic Botany 21: 289-307. [pdf]

Sytsma, K.J. and W.J. Hahn. 1996. Molecular systematics: 1994-1995. Progress in Botany 58: 470-499.

Conti, E., A. Litt, and K.J. Sytsma. 1996. Circumscription of Myrtales and their relationships to other rosids: evidence from rbcL sequence data. American Journal of Botany 83: 221-233. [pdf]

Sytsma, K. J. and D. A. Baum. 1996. Molecular phylogenies and the diversification of angiosperms. In D. W. Taylor and L. J. Hickey , eds. Flowering Plant Origin, Evolution and Phylogeny, pp. 314-340. Chapman and Hall, New York.

Hahn, W. J., T. J. Givnish, and K. J. Sytsma. 1995. Evolution of the monocot chloroplast inverted repeat: I. Evolution and phylogenetic implications of the ORF 2280 deletion. Pp. 579-587 in P. Rudall, P.J. Cribb, D.F. Cutler, and C.J. Humphries, eds. Monocotyledons: Systematics and Evolution. Royal Botanic Gardens, Kew, England.

Givnish, T.J., K.J. Sytsma, W.J. Hahn, and J.F. Smith. 1995. Molecular evolution, adaptive radiation, and geographic speciation in Cyanea (Campanulaceae, Lobelioideae). Pp. 288-337 in W. L. Wagner and V. A. Funk (eds.), Hawaiian Biogeography: Evolution on a Hot Spot Archipelago. Smithsonian Institution Press, Washington, D. C.

Smith, J.F. and K.J. Sytsma. 1994. Molecules and morphology: congruence of data in Columnea (Gesneriaceae). Plant Systematics and Evolution 193: 37-52.

Wiegrefe, S.J., K.J. Sytsma, and R.P. Guries. 1994. Phylogeny of elms (Ulmus, Ulmaceae): molecular evidence for a sectional classification. Systematic Botany 19: 590-612. [pdf]

Baum, D.A. , K.J. Sytsma, and P.C. Hoch. 1994. The phylogeny of Epilobium L. (Onagraceae) based on nuclear ribosomal DNA sequences. Systematic Botany 19: 363-388. [pdf]

Rodman, J.E., K.G. Karol, R.A. Price, E. Conti, and K.J. Sytsma. 1994. Nucleotide sequences of rbcL confirm the Capparalean affinity of the Australian endemic Gyrostemonaceae. Australian Systematic Botany 7: 57-69.

Givnish, T.J., K.J. Sytsma, J.F. Smith, and W.J. Hahn. 1994. Thorns and heterophylly in Cyanea: adaptations to extinct avian browsers on Hawaii? Proceedings National Academy of Sciences, USA 91: 2810-2814. [pdf]

Sytsma, K.J. 1994. DNA extraction from recalcitrant plants: Long, pure, and simple? Pp. 69-81 In (R. P. Adams, J. S. Miller, E. M. Golenberg, and J. E. Adams, eds.) Conservation of Plant Genes II: Intellectual Property Rights and DNA Utilization. Missouri Botanical Garden, St. Louis.

Smith, J.F. and K.J. Sytsma. 1994. Evolution in the Andean epiphytic genus Columnea (Gesneriaceae) Part II: Chloroplast DNA restriction site variation. Systematic Botany 19: 317-336.

Smith, J.F. and K.J. Sytsma. 1994. Evolution in the Andean epiphytic genus Columnea (Gesneriaceae) Part I: Morphological variation. Systematic Botany 19: 220-235.

Sytsma, K.J. and W.J. Hahn. 1994. Molecular systematics: 1991-1993. Progress in Botany 55: 307-333.

Lammers, T.J., T.J. Givnish, and K.J. Sytsma. 1993. Merger of the endemic Hawaiian genera Cyanea and Rollandia (Campanulaceae: Lobelioideae). Novon 3: 437-441.

Nakasone, K.K. and K.J. Sytsma. 1993. Biosystematic studies on Phlebia acerina, P. rufa and P. radiata in North America. Mycologia 85: 996-1016.

Conti, E., A. Fischbach and K.J. Sytsma. 1993. Tribal relationships in the Onagraceae: implications from rbcL sequence data. Annals of the Missouri Botanical Garden 80: 672-685.

Rodman, J., R. Price, K. Karol, E. Conti, K.J. Sytsma and J.D. Palmer. 1993. Nucleotide sequences of the rbcL gene indicate monophyly of mustard oil plants. Annals of the Missouri Botanical Garden 80: 686-699.

Chase, M.W., D.E. Soltis, R.G. Olmstead, D. Morgan, D. H. Les, B.D. Mishler, M.R. Duvall, R.A. Price, H. G. Hills, Y. Qiu, K.A. Kron, J.H. Rettig, E. Conti, J.D. Palmer, J. R Manhart, K.J. Sytsma, H.J. Michaels, W.J. Kress, K.G. Karol, W.D. Clark, M. Hedrén, B.S. Gaut, R.K. Jansen, K.-J. Kim, C.F. Wimpee, J.F. Smith, G.R. Furnier, S.H. Strauss, Q.-Y. Xiang, G.M. Plunkett, P.S. Soltis, S.M. Swensen, S.E. Williams, P.A. Gadek, C.J. Quinn, L.E. Eguiarte, E. Golenberg, G.H. Learn, S.W. Graham, S.C.H. Barrett, S. Dayanandan, and V.A. Albert. 1993. Phylogenetics of seed plants: an analysis of nucleotide sequences from the plastid gene rbcL. Annals of the Missouri Botanical Garden 80: 528-580.

Wiegrefe, S.J., R.P. Guries, E.B. Smalley, and K.J. Sytsma. 1993. Genetic diversity in elms: what molecular data tell us. Pp. 227-238 In (M. B. Sticklen and J. L. Sherald, eds.) Dutch Elm Disease Research: Cellular and Molecular Approaches. Springer-Verlag, New York.

Sytsma, K.J., T.J. Givnish, J.F. Smith and W.J. Hahn. 1993. Obtaining and storing land plant samples for macromolecular comparisons. In E.A. Zimmer, T.J. White, R.L. Cann, and A.C. Wilson [eds.] Molecular Evolution: Producing the Biochemical Data. Methods in Enzymology 224: 23-37.

Spooner, D.M. and K.J. Sytsma. 1992. Reexamination of series relationships of Mexican and Central American wild potatoes (Solanum sect. Petota): Evidence from chloroplast DNA restriction site variation. Systematic Botany 17: 432-448.

Sytsma, K.J. and J.F. Smith. 1992. Molecular systematics of Onagraceae: examples from Clarkia and Fuchsia. Pp. 295-323 In (P. S. Soltis, D. E. Soltis, and J. J. Doyle, eds.) Molecular Systematics of Plants. Chapman & Hall, New York.

Smith, J.F., K.J. Sytsma, J.S. Shoemaker, and R.L. Smith. 1991 [1992]. A qualitative comparison of total cellular DNA extraction protocols. Phytochemical Bulletin 23: 2-9.

Kadereit, J. and K.J. Sytsma. 1992. Disassembling the genus Papaver: a restriction site analysis of chloroplast DNA. Nordic Journal of Botany 12: 205-217.

Spooner, D.M., K.J. Sytsma, and E. Conti. 1991. Chloroplast DNA evidence for genome differentiation in wild potatoes (Solanum sect. Petota: Solanaceae). American Journal of Botany 78: 1354-1366.

Spooner, D.M., K.J. Sytsma, and J.F. Smith. 1991. A molecular reexamination of diploid hybrid speciation of Solanum raphanifolium (Solanaceae). Evolution 45: 757-764.

Sytsma, K.J., J.F. Smith, and P.E. Berry. 1991. The use of chloroplast DNA to assess biogeography and evolution of morphology, breeding systems, and flavonoids in Fuchsia sect. Skinnera (Onagraceae). Systematic Botany 16: 257-269.

Smith, R.L. and K.J. Sytsma. 1990. Evolution of Populus nigra (sect. Aigeiros): introgressive hybridization and the chloroplast contribution of Populus alba (sect. Populus). American Journal of Botany 77: 1176-1187.

Sytsma, K.J. 1990. DNA and morphology: Inference of plant phylogeny. Trends in Ecology and Evoution. 5: 104-110.

Sytsma, K.J., J.F. Smith, and L.D. Gottlieb. 1990. Phylogenetics in Clarkia (Onagraceae): Restriction site mapping of chloroplast DNA. Systematic Botany 15: 280-295.

Sytsma, K.J. and B.A. Schaal. 1990. Ribosomal DNA variation within and among individuals of Lisianthius (Gentianaceae) populations. Plant Systematics and Evolution 170: 97-106.

Sytsma, K.J. 1988. Taxonomic revision of the Central American Lisianthius skinneri species complex (Gentianaceae). Annals of the Missouri Botanical Garden 75(4): 1587-1602.

Sytsma, K.J. and J.F. Smith. 1988. DNA and morphology: comparisons in the Onagraceae. Annals of the Missouri Botanical Garden 75(4): 1217-1237.

Sytsma, K.J. 1987. The shrubby gentian genus Macrocarpaea in Panama. Annals of the Missouri Botanical Garden 74: 310-313.

Sytsma, K.J. 1987. "DNA Systematics. Vol. II: Plants". Plant Genetics Newsletter 3: 27.

Sytsma, K.J. and L.D. Gottlieb. 1986. Chloroplast DNA evidence for the origin of the genus Heterogaura from a species of Clarkia (Onagraceae). Proeedings of the. National Acaemy of Sciences, USA. 83: 5554-5557.

Sytsma, K.J. and L.D. Gottlieb. 1986. Chloroplast DNA evolution and phylogenetic relationships in Clarkia section Peripetasma (Onagraceae). Evolution 40: 1248-1261.

Sytsma, K.J. and B.A. Schaal. 1985. Genetic variation, differentiation, and evolution in a species complex of tropical shrubs based on isozymic data. Evolution 39: 582-593.

Sytsma, K.J. and B.A. Schaal. 1985. Phylogenetics of the Lisianthius skinneri (Gentianaceae) species complex in Panama utilizing DNA restriction fragment analysis. Evolution 39: 594-609.

Sytsma, K.J. and R.W. Pippen. 1985. Morphology and pollination biology of an intersectional hybrid of Costus (Costaceae). Systematic Botany 10: 353-362.

Sytsma, K.J. 1985. Mixing new and old. BioScience 35(4): 251-252.

Sytsma, K.J. and R.W. Pippen. 1982. The Hampton Creek Wetland Complex in southwestern Michigan. V. Species of vascular plants. Michigan Botanist 21: 195-204.

Sytsma, K.J. and R.W. Pippen. 1982. The Hampton Creek Wetland Complex in southwestern Michigan. IV. Fen succession. Michigan Botanist 21: 105-115.

Sytsma, K.J. and R.W. Pippen. 1982. The Hampton Creek Wetland Complex in southwestern Michigan. III. Structure and succession of tamarack forests. Michigan Botanist 21: 67-74.

Sytsma, K.J. and R.W. Pippen. 1981. The Hampton Creek Wetland Complex in southwestern Michigan. II. Community classification. Michigan Botanist 20: 147-156.

Sytsma, K.J. and R.W. Pippen. 1981. The Hampton Creek Wetland Complex in southwestern Michigan. I. Description and physical features. Michigan Botanist 20: 137-142.