all items  in current results   Refine your search within these categories: Animal Science and Animal Products Biological Sciences (group results) anatomy and morphology (2) biogeography (1) botany (2) genetics (1) microbiology (1) organisms (1) paleontology (2) physiology (1) taxonomy (2) Breeding and Genetic Improvement Calendar Year (group results) Year (3) Economics, Business and Industry Farms and Farming Systems Food and Human Nutrition Forest Science and Forest Products Geographical Locations (group results) Europe (1) North America (1) South America (1) Government, Law and Regulations Health and Pathology (group results) etiology (1) plant health (1) Insects and Entomology Natural Resources, Earth and Environmental Sciences (group results) geography (1) natural resources (1) Physical and Chemical Sciences Plant Science and Plant Products (group results) botany (2) plant health (1) plants (1) Reference Types (group results) Journal (3) Research, Technology and Engineering (group results) methodology (1) technology (1) Rural and Agricultural Sociology Taxa - Algae Taxa - Animalia Taxa - Archaea, Cyanobacteria and Bacteria Taxa - Fungi, Yeasts, Molds and Mildews (group results) Deuteromycotina (1) Taxa - Plantae: all > Gnetopsida > Welwitschiaceae Welwitschia (2) Taxa - Viruses and Viroids Time Periods Recently Viewed Items Go to Item History

These terms define your current search. Click the × to remove a term. Taxa - Plantae: Gnetopsida > Welwitschiaceae × 3 results Group by: Taxa - Plantae   (Click to View) Former Diversity of Ephedra (Gnetales): Evidence from Early Cretaceous Seeds from Portugal and North America Annals of botany (Click to View) Welwitschiaceae from the Lower Cretaceous of northeastern Brazil. [Erratum: 2005 Dec., v. 92, no. 12, p. 1957.] American journal of botany (Click to View) High Levels of Genetic Variation Exist in Aspergillus niger Populations Infecting Welwitschia mirabilis Hook journal of heredity