Displaying 3876 - 3950 out of 267543 Object(s)

Author(s) Year Article/Chapter Title Book/Journal
Thomson, G. 2002 A re-evaluation of the taxonomic status of the genus Melocactus in Aruba, Netherland Antilles.   View Details Bradleya; yearbook of the British Cactus and Succulent Society
Rova, J. H. E., Andersson, Lennart 1995 A reevaluation of the tribes Hippotideae and Tammsieae (Rubiaceae).   View Details Nordic Journal of Botany
Platt, P. L., Spatafora, J. W. 1999 A re-examination of generic concepts of baeomycetoid lichens based on phylogenetic analyses of nuclear SSU and LSU ribosomal DNA.   View Details The Lichenologist
Cantino, Philip D., Wagstaff, Steven J. 1998 A reexamination of North American Satureja s.l. (Lamiaceae) in light of molecular evidence.   View Details Brittonia: a journal of systematic botany
Broyles, S. B., Wyatt, R. 1995 A reexamination of the pollen-donation hypothesis in an experimental population of Asclepias exaltata.   View Details Evolution; international journal of organic evolution
Galen, C., Shserry, R. A., Carroll, A. B. 1999 Are flowers physiological sinks or faucets? Costs and correlates of water use by flowers of Polemonium viscosum.   View Details Oecologia
Tabarelli, Marcelo, Mantovani, W. 1999 A regeneração de uma floresta tropical montana após corte e queima (São Paulo-Brasil).   View Details Revista Brasileira de Biologia
Behrens, C. A., Baksh, M. G., Mothes, M. 1994 A regional analysis of Barí land use intensification and its impact on landscape heterogrneity.   View Details Human ecology; an interdisciplinary journal
Gómez, J. A. A., Bellon, M. R., Smale, M. 2000 A regional analysis of maize biological diversity in southeastern Guanajuato, Mexico.   View Details Economic botany; Devoted to past, present, and future uses of plants by people
Nelson, T. A., Lee, D. J., Smith, B. C. 2003 Are "green tides" hearmful algal blooms? Toxic properties of water-soluble extracts from two bloo-forming macroalgae, Ulva fenestrata and Ulvaria obscura (Ulvophyceae).   View Details Journal of phycology
Spribille, T., Stroh, H. G., Triepke, F. J. 2002 Are habitat types compatible with floristically-derived associations?   View Details Journal of vegetation science
Hennon, P. E. 1995 Are heart rot fungi major factors of disturbance in gap-dynamic forests?   View Details Northwest Science
Leuschner, Christoph 2000 Are high elevations in tropical mountains arid environments for plants?   View Details Ecology
Rogers, J. D., Ju, Yu-Ming, Watling, Roy, Whalley, A. J. S. 1999 A reinterpretation of Daldinia concentrica based upon a recently discovered specimen.   View Details Mycotaxon
Petryna, L., Moora, M., Nuñes, C. O., Cantero, J. J., Zobel, M. 2002 Are invaders disturbance-limited? Conservation of mountain grasslands in Central Argentina.   View Details Applied vegetation science. Uppsala
Mitchell, R. 1999 Are invasive plants really a serious danger to native plants & communities?   View Details Wildflower
Buckley, Y. M., Downey, P., Fowler, S. V., Hill, R., Memmot, J., Norambuena, H., Pitcairn, M., Shaw, R., Sheppard, A. W., Winks, C., Wittenberg, R., Rees, M. 2003 Are invasives bigger? A global study of seed size variation in two invasive shrubs.   View Details Ecology
Galtier, J., Beck, C. B. 1995 A reinvestigation of Calamopitys americana with a description of two species from the Lower Carboniferous of U.S.A. and France.   View Details Palaeontographica. Abteiling B. Paläophytologie
Guevara, S., Laborde, J., Sánchez, G. 1998 Are isolated remnant trees in pastures a fragmented canopy?   View Details Selbyana
Taylor, D. C., Robinson, H. 1999 A rejection of Pepinia (Bromeliaceae: Pitcairnioideae) and taxonomic revisions.   View Details Harvard Papers in Botany
Taisma, María A., Herrera, A. 1998 A relationship between fecundity, survival, and the operation of crassulacean acid metabolism in Talinum triangulare.   View Details Canadian Journal of Botany
Pannewitz, S., Schlensog, M., Green, T. G. A., Sancho, L. G., Schroeter, B. 2003 Are lichens active under snow in continental Antarctica?   View Details Oecologia
Williams-Linera, Guadalupe, Devall, M. S., Alvarez-Aquino, Claudia 2000 A relict population of Fagus grandifolia var. mexicana at the Acatlan Volcano, Mexico: Structure, litterfall, phenology and dendroecology.   View Details Journal of Biogeography
Higgins, S. I., Nathan, R., Cain, M. L. 2003 Are long-distnace dispersal events in plants usually caused by nonstandard means of dispersal?   View Details Ecology
Sérsic, A. N., Cocucci, Andrea A. 1996 A remarkable case of ornithophily in Calceolaria: Food bodies as rewards for a non-nectarivorous bird.   View Details Botanica acta; Berichte der Deutschen Botanischen Gesellschaft (Journal of the German Botanical Society)
Till, W., Halbritter, H., Zecker, E. 1989 A remarkable, new, large Tillandsia from western Mexico.   View Details Journal of the Bromeliad Society
Hodel, Donald R., Herrera, G., Cascante, A. 1997 A remarkable new species and additional novelties of Chamaedorea from Costa Rica and Panamá.   View Details The Palm journal
Klitgaard, Bente B., Queiroz, Luciano P. de, Lewis, Gwilym P. 2000 A remarkable new species of Pterocarpus (Leguminosae: Papolonoideae: Dalbergieae) from Bahia, Brazil.   View Details Kew Bulletin
Erskine, A. J. 1994 A remembrance of John Steuart Erskine, 1900--1981   View Details Canadian field-naturalist
Brison, A. L., Philippe, M., Thevenard, F. 2001 Are Mesozoic wood rings climate-induced?   View Details Paleobiology
Tanabe, Y., Watanabe, M. M., Sugiyama, J. 2002 Are Microsporidia really related to fungi?: A reappraisal based on additional gene sequences from basal fungi.   View Details Mycological Research
Chen, H. Y. H., Kilnka, K., Mathey, A. H., Wang, X., Varga, P., Chourmouzis, C. 2003 Are mixed-species stands more productuve than single-species stands: An empirical test of three forest types in British Columbia and Alberta.   View Details Canadian journal of forest research
DeFalco, L. A., Bryla, D. R., Smith-Longozo, V., Nowak, R. S. 2003 Are Mojave Desert annual species equal? Resource acquisition and allocation for the invasive grass Bromus madritensis subsp. rubens (Poaceae) and two native species.   View Details American Journal of Botany; official publication of the Botanical Society of America
Schaechter, E., Pirlot, J. M. 2001 A Renaissance Phallus.   View Details McIlvainea
Volponi, C. R. 1995 Arenaria lanuginosa (Caryophyllaceae) en México: Morfología foliar.   View Details Anales del instituto de biologia de la universidad nacional autonoma de Mexico. Serie Botanica
Ross, T. S., Boyd, S. 1996 Arenaria macradenia var. kuschei (Caryophyllaceae), re-collection of an obscure Californian taxon, with notes on known habitat and morphological variation.   View Details Crossosoma. Claremont, CA
Maloof, J. E., Inouye, D. W. 2000 Are nectar robbers cheaters or mutualists?   View Details Ecology
Torres, C., Galetto, Leonardo 2002 Are nectar sugar composition and corolla tube length related to the diversity of insects that visit Asteraceae flowers?   View Details Plant biology
Kraan, S., Rueness, J., Guiry, M. D. 2001 Are North Atlantic Alaria esculenta and A. grandifolia (Alariaceae, Phaeophyceae) conspecific?   View Details European journal of phycology
Campbell, S. P., Boecklen, W. J. 2002 Are plant hybrid zones centers of vertebrate biodiversity? A test in the Quercus grisea × Quercus gambelli species complex.   View Details Biodiversity and Conservation.
Bruna, E. M. 2003 Are plant populations in fragmented habitats recruitment limited? Tests with an Amazonian herb.   View Details Ecology
Thébaud, C., Simberloff, D. 2001 Are plants really larger in their introduced ranges?   View Details The American Naturalist
Strand, A. E., Milligan, B. G., Pruitt, C. M. 1996 Are populations islands? Analysis of chloroplast DNA variation in Aquilegia [Ranunculaceae].   View Details Evolution; international journal of organic evolution
St. Hilaire, L. 2003 A report from the twenty-seventh annual Andrews Foray September 2002, Saco, Maine.   View Details Evansia
Carter, R., Mears, R. L., Burkes, K. C., Bryson, Charles T. 1996 A report of four exotic Cyperus (Cyperaceae) species new to Florida, U.S.A.   View Details Sida; Contributions to Botany
Higgins, S. S. 1999 A report on some rare, threatened, endangered, or endemic plant species of the Wenatchee National Forest, Washington.   View Details Douglasia occasional papers
Gordon, J. E., Barrance, A. J., Schreckenberg, K. 2003 Are rare apecies useful species? Obstacles to the conservation of tree diversity in the dry forest zone agro-ecosystems of Mesoamerica.   View Details Global ecology and biogeography
Ragan, M. A., Gutell, R. R. 1995 Are red algae plants?   View Details Botanical Journal of the Linnean Society
Walters, M. B., Reich, Peter B. 1996 Are shade tolerance, survival, and growth linked? Low light and nitrogen effects on hardwood seedlings.   View Details Ecology
Kampny, C. M. 1995 Are Synthyris and Besseya closely related to Wulfenia (Scrophulariaceae -- Veroniceae)? Evidence from floral development.   View Details Canadian Journal of Botany
Gulis, V. 2001 Are there any substrate preferences in aquatic hyphomycetes?   View Details Mycological Research
Bastow Wilson, J., Wells, T. C. E., Trueman, I. C., Jones, G., Atkinson, M. D., Crawley, M. J., Dodd, M. E., Silvertown, J. 1996 Are there assembly rules for plant species abundance? An investigation in relation to soil resources and successional trends.   View Details Journal of Ecology. London
Proffitt, C. Edward, Devlin, D. J. 1998 Are there cumulative effects in red mangroves from oil spills during seedling and sapling stages?   View Details Ecological Applications
Parolin, Pia, Ferreira, L. V. 1998 Are there differences in specific wood gravities between trees in Varzea and Igapo (central Amazonia)?   View Details Ecotropica: international journal of tropical ecology
Winka, K., Ahlberg, C., Eriksson, Ove E. 1998 Are there lichenized Ostropales?   View Details The Lichenologist
Sancho, G., Katinas, L. 2002 Are the trichomes in corollas of Mutsieae (Asteraceae) really twin hairs?   View Details Botanical Journal of the Linnean Society
Yannetti, R. 2003 Arethusa bulbosa: Color variation in a North American terrestrial orchid.   View Details Orchids
Tiffin, Peter 2000 Are tolerance, avoidance, and antibiosis evolutionarily and ecologically equivalent responses of plants and herbivores?   View Details The American Naturalist
Zotz, G., Schultz, S., Rottenberger, S. 2003 Are tropical lowlands a marginal habitat for macrolichens? Evidence from a field study with Parmotrema endosulphureum in Panama.   View Details Flora
Bolser, R. C., Hay, M. E. 1996 Are tropical plants better defended? Palatability and defenses of temperate vs. tropical seaweeds.   View Details Ecology
Gropp, R. E. 2003 Are university natural science collections going extinct?   View Details BioScience
Feng, Yu-Xing, Quan, X., Wang, Pan, Kai-Yu, De-Yuan Hong 1998 A revaluation of the systematic positions of the Cercidiphyllaceae and Daphniphyllaceae based on rbcL gene sequence analysis, with reference to the relationship in the "lower" Hamamelidae.   View Details Acta Phytotaxonomica sinica. [Chih su fen lei hsüeh pao.]
Davis, J. S., Karpook, E. J. 1999 A review of airborne, soil, and subaerial algae in Florida.   View Details Florida scientist
Luteyn, James L. 1997 A review of and taxonomic realignments within the neotropical genus Macleania (Ericaceae: Vaccinieae).   View Details BioLlania
Damasceno, D. C., Volpato, G. T., Lemonica, I. P. 2002 A review of antifertility folkloric plants tested in laboratory animals.   View Details Revista Brasileira de plantas medicinais
McDonald, H. P. 2000 A review of Calochortus, section Cyclobothra (Calochortaceae).   View Details Herbertia
Pigott, C. D. 2002 A review of chromosome numbers in the genus Tilia (Tiliaceae).   View Details Edinburgh Journal of Botany
Bryant, H. N., Cantino, Philip D. 2002 A review of criticisms of phylogenetic nomenclature: Is taxonomic freedom the fundamental issue?   View Details Biological reviews. Cambridge
Sivinski, Robert C. 1994 A review of Cryptantha fulvocanescens (Boraginaceae) with the re-evaluation of Green's Orecocarya nitida.   View Details Madroño; Journal of the California Botanical Society
Taylor, N. P. 1984 A review of Ferocactus Britton & Brown.   View Details Bradleya; yearbook of the British Cactus and Succulent Society
Batista, J. A. N., de Bem Biachetti, L. 2002 A review of Habenaria (Orchidaceae) in Pabst and Dungs' Orchidaceae Brasilienses.   View Details Lindleyana
Reichard, S. H. 1999 A review of impacts of non-native invasive species.   View Details Douglasia occasional papers
Millay, M. A. 1997 A review of permineralized Euramerican Carboniferous tree ferns.   View Details Review of palaeobotany and palynology
Tan, B., Robinson, H. 1990 A review of Philippine hookeriaceous taxa (Musci).   View Details Smithsonian Contributions to Botany
Skog, Laurence E., de Jesus, F. F. 1997 A review of Resia (Gesneriaceae).   View Details BioLlania