Displaying 256351 - 256400 out of 267716 Object(s)

Author(s) Year Article/Chapter Title Book/Journal
Simpson, Beryl Britnall 1989 Pollination biology and taxonomy of Dinemandra and Dinemagonum (Malpighiaceae)   View Details Systematic Botany
Skog, S. E. 1989 Novae Gesneriaceae Neotropicarum II. A new species of Nautilocalyx from Venezuela   View Details Systematic Botany
Harriman, Neil A. 1989 Aldama mesoamericana (Asteraceae: Heliantheae), a new species from Nicaragua   View Details Systematic Botany
Smith, E. B. 1989 A biosystematic study and revision of the genus Coreocarpus (Compositae)   View Details Systematic Botany
Strother, John L. 1989 Oblivia, a new genus for Zexmenia mikanioides (Compositae: Heliantheae)   View Details Systematic Botany
Strother, John L. 1989 Expansion of Lundellianthus (Compositae: Heliantheae)   View Details Systematic Botany
Urbatsch, Lowell E. 1989 Vernonia proctorii (Asteraceae: Vernonieae), a new species from Puerto Rico   View Details Systematic Botany
Hardin, James W. 1990 Variation patterns and recognition of varieties of Tilia americana s. l   View Details Systematic Botany
Kellogg, Elizabeth Anne 1990 Variation and species limits in agamospermous grasses   View Details Systematic Botany
Gentry, Alwyn H. 1990 Sphingiphila (Bignoniaceae), a new genus for the Paraguayan Chaco   View Details Systematic Botany
Ornduff, Robert 1990 A new species of Villarsia (Menyanthaceae) from the Porongurup Range, Western Australia   View Details Systematic Botany
Standley, Lisa A. 1990 Allozyme evidence for the hybrid origin of the maritime species Carex salina and Carex recta (Cyperaceae) in eastern North America   View Details Systematic Botany
Grether, Rosaura 1990 Two new taxa of Mimosa (Leguminosae) from Oaxaca, Mexico   View Details Systematic Botany
Judziewicz, Emmet J. 1990 A new South American species of Sacciolepis (Poaceae: Panicoideae: Paniceae), with a summary of the genus in the New World   View Details Systematic Botany
Lane, Meredith A. 1990 Generic limits of Xanthocephalum, Gutierrezia, Amphiachyris, Gymnosperma, Greenella, and Thurovia (Compositae: Astereae)   View Details Systematic Botany
McDade, Lucinda A. 1982 New species of Justicia and Razisea (Acanthaceae) from Costa Rica, with taxonomic notes   View Details Systematic Botany
Nesom, Guy L. 1982 Systematics of the Erigeron rusbyi group (Asteraceae) and delimitation of sect. Peregrinus   View Details Systematic Botany
Sanderson, M. J. 1991 Phylogenetic relationships within North American Astragalus L. (Fabaceae)   View Details Systematic Botany
Soreng, Robert J. 1991 Systematics of the 'Epiles' group of Poa (Poaceae)   View Details Systematic Botany
Luteyn, James L. 1991 A synopsis of the genus Didonica (Ericaceae: Vaccinieae) with two new species   View Details Systematic Botany
Robinson, H. 1991 A review of the genus Macvaughiella (Eupatorieae: Asteraceae) with two new species   View Details Systematic Botany
Robinson, H. 1991 Two new species of Stiffiia with notes on relationships of the genus (Asteraceae:Mutisieae)   View Details Systematic Botany
Doyle, J. L. 1992 Gene trees and species trees: Molecular systematics as one-character taxonomy   View Details Systematic Botany
Levin, Geoffrey A. 1992 Systematics of Paradrypetes (Euphorbiaceae)   View Details Systematic Botany
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