Displaying 256376 - 256450 out of 267716 Object(s)

Author(s) Year Article/Chapter Title Book/Journal
Malusa, J. 1992 Phytogeny and biogeography of the pinyon pines (Pinus subsect. Cembroides)   View Details Systematic Botany
1992 Experimental hybridization and chromosome homologies in Boisduvalia sect. Boisduvalia (Onagraceae)   View Details Systematic Botany
Whitkus, Richard 1992 Allozyme variation within the Carex pachystachya complex (Cyperaceae)   View Details Systematic Botany
Morefield, James D. 1992 Resurrection and revision of Hesperevax (Asteraceae: Inuleae)   View Details Systematic Botany
Case, M. A. 1993 High levels of allozyme variation within Cypripedium calceolus (Orchidaceae) and low levels of divergence among its varieties   View Details Systematic Botany
Arnow, L. 1994 Koeleria macrantha and K. pyrami-daía (Poaceae): Nomenclatural problems and biological distinctions   View Details Systematic Botany
Karis, P. O. 1995 Cladistics of the subtribe Ambrosiinae (Asteraceae: Heliantheae)   View Details Systematic Botany
Hinton, W. F. 09/06/1976 Introgression and the evolution of selfing in Calyptridium monospermum (Portulacaceae)   View Details Systematic Botany
Ornduff, Robert 09/06/1976 The reproductive system of Amsinckia grandifiora, a distylous species   View Details Systematic Botany
Young, David A. /11/1976 Flavonoid chemistry and the phylogenetic relationships of the Julianiaceae   View Details Systematic Botany
Graham, Shirley A. /09/1977 The American species of Nesaea (Lythraceae) and their relationships to Heimia and Decodon   View Details Systematic Botany
Lee, Yoo S. 05/05/1978 An immunoelectrophoretic comparison of three species of Coffea   View Details Systematic Botany
Vasek, Frank C. /07/1978 Phenotypic variation and adaptation in Clarkia section Phaeostoma   View Details Systematic Botany
Schoen, D. J. /07/1978 Morphological, phenological, and pollendistribution evidence of autogamy and xenogamy in Gilia achilleifolia (Polemoniaceae)   View Details Systematic Botany
Lee, Sangtae 09/01/1979 A factor analysis study of the functional significance of angiosperm pollen   View Details Systematic Botany
Weller, Stephen G. 09/01/1979 Dispersal patterns and the evolution of distyly in Oxalis alpina   View Details Systematic Botany
Whalen, Michael D. 09/01/1979 Reproductive character displacement and floral diversity in Solanum section Androceras   View Details Systematic Botany
Weller, Stephen G. /10/1979 Variation in heterostylous reproductive systems among populations of Oxalis alpina in southeastern Arizona   View Details Systematic Botany
Whalen, Michael D. /04/1980 Allozyme variation and evolution in Solanum section Androceras   View Details Systematic Botany
Andrus, Richard E. 27/05/1980 Sphagnum subtile (Russow) Warnst. and allied species in North America   View Details Systematic Botany
Wells, Elizabeth F. 27/05/1980 Interspecific hybridization in eastern North American Heuchera (Saxifragaceae)   View Details Systematic Botany
Canne, Judith M. /06/1981 Seed surface features in Aureolaría, Brachystigma, Tomanthera, and certain South American Agalinis (Scrophulariaceae)   View Details Systematic Botany
Miller, John M. /08/1981 Flavonol glycoside variation in diploids of the Claytonia perfoliata complex (Portulacaceae)   View Details Systematic Botany
Lee, Yoo S. /10/1981 Serological investigations in Ambrosia (Compositae: Ambrosieae) and relatives   View Details Systematic Botany
Wofford, B. E. /10/1981 External seed morphology of Arenaria (Caryophyllaceae) of the southeastern United States   View Details Systematic Botany
Kress, Walter J. /10/1981 Sibling competition and evolution of pollen unit, ovule number, and pollen vector in angiosperms   View Details Systematic Botany
Gilmartin, Amy J. /12/1981 Morphological variation within five angiosperm families: Asclepiadaceae, Bromeliaceae, Melastomataceae, Piperaceae, and Rubiaceae   View Details Systematic Botany
Semple, John C. /03/1982 Observations on morphology and cytology of Aster hemisphaericus, A. paludosus, and A. chapmanii (Asteraceae) with comments on chromosomal base number and phylogeny of Aster subg, Aster sect. Heleastrum.   View Details Systematic Botany
Koptur, Suzanne 26/10/1983 Flowering phenology and floral biology of Inga (Fabaceae: Mimosoideae)   View Details Systematic Botany
Wynne, Michael James 21/02/1985 Taxonomic delineation of Phycodrina (Delesseriaceae, Rhodophyta), a new genus endemic to the Galápagos   View Details Systematic Botany
Haufler, Christopher H. 21/02/1985 Enzyme variability and modes of evolution in Bommeria (Pteridaceae)   View Details Systematic Botany
Elisens, Wayne J. 13/08/1985 The systematic significance of seed coat anatomy among New World species of tribe Antirrhineae (Scrophulariaceae)   View Details Systematic Botany
DiMichele, William A. 30/10/1985 Diaphorodendron, gen. nov. , a segregate from Lepidodendron (Pennsylvania age)   View Details Systematic Botany
Mishler, Brent D. 28/02/1986 Ontogeny and phylogeny in Tortula (Musci: Pottiaceae)   View Details Systematic Botany
Johnson, David M 28/02/1986 Trophopods in North American species of Athyrium (Aspleniaceae)   View Details Systematic Botany
Levin, Geoffrey A. 1986 Systematic foliar morphology of Phyllanthoideae (Euphorbiaceae). III. Cladistic analysis   View Details Systematic Botany
Wagner, Florence S. 19/02/1987 Evidence for the origin of the hybrid cliff fern, Woodsia x abbeae (Aspleniaceae: Athyrioideae)   View Details Systematic Botany
Park, Chong Wook 19/02/1987 Flavonoid chemistry of Polygonum sect. Echinocaulon: a systematic survey   View Details Systematic Botany
Rosatti, Thomas J. 19/02/1987 Field and garden studies of Arctostaphylos uvaursi (Ericaceae) in North America   View Details Systematic Botany
Halling, Roy E. 18/08/1987 Studies on Marasmiellus (Tricholomataceae) in the United States, I. A new species and a new combination   View Details Systematic Botany
Miller, Harvey A. 1988 Pacific bryophytes: 4. Epipterygium in southern Melanesia   View Details Systematic Botany
Hufford, Larry 1988 Seed morphology of Eucnide and other Loasaceae   View Details Systematic Botany
Lew, D. 1988 The evolution of achene morphology in Ceratophyllum (Ceratophyllaceae), II. Fruit variation and systematics of the 'spinymargined' group   View Details Systematic Botany
Les, D. L. 1988 The evolution of achene morphology in Ceratophyllum (Ceratophyllaceae), III. Relationships of the 'Facially-spined' group   View Details Systematic Botany
Les, D. L. 1989 The evolution of achene morphology in Ceratophyllum (Ceratophyllaceae), IV. Summary of proposed relationships and evolutionary trends   View Details Systematic Botany
Wilson, H. M. 1989 Discordant patterns of allozyme and morphological variation in Mexican Cucurbita   View Details Systematic Botany
Mishler, Brent D. 1990 Reproductive biology and species distinctions in the moss genus Tortula, as represented in Mexico   View Details Systematic Botany
Vickery, Robert K. 1990 Close correspondence of allozyme groups to geographic races in the Mimulus glabratus complex (Scrophulariaceae)   View Details Systematic Botany
Werth, C. R. 1991 Isozyme studies on the Dryopteris 'spinulosa' complex, I: The origin of the log fern Dryopteris celsa   View Details Systematic Botany
Manchester, Steven R. 1991 Cruciptera, a new Juglandaceous winged fruit from the Eocene and Oligocène of western North America   View Details Systematic Botany
Webster, Grady L. 1992 Revision of Astrocasia (Euphorbiaceae)   View Details Systematic Botany
Shaw, A. Jonathan 1993 Morphological uniformity among widely disjunct populations of the rare 'Copper Moss, ' Scopelophila cataractae (Pottiacceae)   View Details Systematic Botany
Mooney, Harold A. /03/1977 Some contributions of physiological ecology to plant population biology   View Details Systematic Botany
Solbrig, Otto T. /03/1977 Plant population biology: an overview   View Details Systematic Botany
Antonovics, Janis /03/1977 The imput from population genetics: 'The new ecological genetics.'   View Details Systematic Botany
Estabrook, George F. /09/1977 Does common equal primitive   View Details Systematic Botany
Kruckeberg, A. R. /07/1978 Manzanita (Arctostaphylos) hybrids in the Pacific Northwest: effects of human and natural disturbance   View Details Systematic Botany
Small, Ernest 09/01/1979 A numerical and nomenclatural analysis of morphogeographic taxa of Kumulus   View Details Systematic Botany
Estabrook, George F. 07/03/1979 Some concepts for the estimation of evolutionary relationships in systematic botany   View Details Systematic Botany
Duncan, Thomas /11/1980 Cladistics for the practicing taxonomist--an eclectic view   View Details Systematic Botany
Bedell, Hollis G. 05/05/1981 A taxonomic and morphological reevaluation of Stegnospermaceae (Caryophyllales)   View Details Systematic Botany
Young, David A. /12/1981 Are the angiosperms primitively vesselless   View Details Systematic Botany
Cantino, Philip D. 26/07/1982 Affinities of the Lamiales: a cladistic analysis   View Details Systematic Botany
Jackson, Raymond C. 07/03/1984 Chromosome pairing, hybrid sterility, and polyploidy: comments on G. L. Stebbins's reply   View Details Systematic Botany
Sattler, R. 1984 Homology-a continuing challenge   View Details Systematic Botany
Savile, Douglas B. O. 1984 Randomness and change of function in the evolution of structures   View Details Systematic Botany
Stevens, Peter Francis 1984 Homology and phylogeny: morphology and systematics   View Details Systematic Botany
Robinson, Harold E. 21/02/1985 Observations on fusion and evolutionary variability in the angiosperm flower   View Details Systematic Botany
Cantino, Philip D. 21/02/1985 Chromosome studies in subtribe Melittidinae (Labiatae) and systematic implications   View Details Systematic Botany
Cantino, Philip D. 21/02/1985 Phylogenetic inference from non-universal derived character states   View Details Systematic Botany
Crawford, Daniel J. 30/10/1985 Electrophoretic data and plant speciation   View Details Systematic Botany
Kruckeberg, A. R. 23/07/1986 An essay: the stimulus of unusual geologies for plant speciation   View Details Systematic Botany
Frohlich, Michael W. 20/05/1987 Common is primitive: a partial validation by tree counting   View Details Systematic Botany
Stuessy, Tod F. 20/05/1987 Explicit approaches for evolutionary classification   View Details Systematic Botany
Anderson, L. C. 1988 Status of endangered Rhynchospora crinipes (Cyperaceae)   View Details Systematic Botany