Results 311 to 320 of about 538,243 (358)
The Botanical Review, 1942 INTRODUCTION Scope of the Paper 247 Derivations and Definitions of Terms .248 HISTORICAL DEVELOPMENT OF PLANT CLASSIFICATION . .252 Pre-Linnaean Systems 252 Linnaeus 256 Post-Linnaean and Pre-Darwinian Systems .256 Darwin .264 Post-Darwinian Systems ...
openaire +1 more source
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Journal of the History of Biology, 2020
The concept that renders morphology a tool for phylogeny reconstruction is homology. The concept of homology is rooted in pre-evolutionary idealistic morphology. The claim that the goal of idealistic morphology was the seriability of form may sound paradoxical given that this discipline proceeded within a framework of strictly delimited types.
openaire +2 more sources
The concept that renders morphology a tool for phylogeny reconstruction is homology. The concept of homology is rooted in pre-evolutionary idealistic morphology. The claim that the goal of idealistic morphology was the seriability of form may sound paradoxical given that this discipline proceeded within a framework of strictly delimited types.
openaire +2 more sources
American Journal of Botany, 2014
• Premise of the study: The Lamiidae, a clade composed of approximately 15% of all flowering plants, consists of five orders: Boraginales, Gentianales, Garryales, Lamiales, and Solanales; and four families unplaced in an order: Icacinaceae, Metteniusiaceae, Oncothecaceae, and Vahliaceae.
Nancy F. Refulio-Rodriguez +1 more
openaire +3 more sources
• Premise of the study: The Lamiidae, a clade composed of approximately 15% of all flowering plants, consists of five orders: Boraginales, Gentianales, Garryales, Lamiales, and Solanales; and four families unplaced in an order: Icacinaceae, Metteniusiaceae, Oncothecaceae, and Vahliaceae.
Nancy F. Refulio-Rodriguez +1 more
openaire +3 more sources
Archives of Surgery, 1980
When I have the opportunity to watch a bright young surgeon just a few years out of medical school as he casually stops his patient's heart and proceeds confidently with barely imaginable technical procedures while the patient's physiology is totally dependent on iatrogenic support, I feel like Darwin did as he looked at dinosaur bones in Patagonia ...
openaire +6 more sources
When I have the opportunity to watch a bright young surgeon just a few years out of medical school as he casually stops his patient's heart and proceeds confidently with barely imaginable technical procedures while the patient's physiology is totally dependent on iatrogenic support, I feel like Darwin did as he looked at dinosaur bones in Patagonia ...
openaire +6 more sources
Science, 1961 The systematic position of the small invertebrate group, Priapulida, is uncertain. In more recent publications they are classified usually as pseudocoelomates in the division Aschelminthes. A histological investigation of Priapulus caudatus , a widely distributed species, reveals the body cavity to be a coelom, its ...
openaire +2 more sources
Transactions of the American Microscopical Society, 1907
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +1 more source
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +1 more source
Science, 1980
For the first time a single experimental approach, 16 S ribosomal RNA sequence characterization, has been used to develop an overview of phylogenetic relationships in the bacterial world. The technique permits the tracing of relationships back to the common ancestor of all extant life.
Ralph S. Tanner +18 more
openaire +3 more sources
For the first time a single experimental approach, 16 S ribosomal RNA sequence characterization, has been used to develop an overview of phylogenetic relationships in the bacterial world. The technique permits the tracing of relationships back to the common ancestor of all extant life.
Ralph S. Tanner +18 more
openaire +3 more sources
A PHYLOGENY OF THE BASIDIOMYCETES
Canadian Journal of Botany, 1955Thirteen phylogenetic principles of general or mycologicai application are presented. Adherence to these principles makes it difficult to accept any starting point for the Basidiomycetes other than a primitive ascomycete very close to Taphrina and parasitic upon ancient ferns. From the ancestral basidiomycete one line led to the rusts and another, via
openaire +2 more sources
THE PHYLOGENY OF THE SALIENTIA
Biological Reviews, 1963Summary1. The essentially recent skeletal patterns of fossil Salientia indicates that the evolutionary relationships of the order must continue to be assessed on evidence obtained chiefly from a study of recent forms.2. The morphology and morphogenesis of the more important criteria employed in taxonomic analyses are described.
openaire +3 more sources
2011
Publisher Summary This chapter discusses the study of living of phylogenetically ancient organisms such as insects, fish, amphibians, reptiles, and primitive mammals that give clues to the function of sleep. This phylogenetic approach toward investigating the origins of sleep has not been without controversy, and there is disagreement in the ...
openaire +2 more sources
Publisher Summary This chapter discusses the study of living of phylogenetically ancient organisms such as insects, fish, amphibians, reptiles, and primitive mammals that give clues to the function of sleep. This phylogenetic approach toward investigating the origins of sleep has not been without controversy, and there is disagreement in the ...
openaire +2 more sources