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more general categories information about this item Biological Sciences Biological Sciences anatomy and morphology (70482) plant anatomy (36017) seed anatomy (2554) seeds (5899) inflorescences (5044) flowers (4290) androecium (1856) pollen (1491) botany (53088) plant biology (52661) plant anatomy (36016) seed anatomy (2554) seeds (5899) inflorescences (5044) flowers (4290) androecium (1856) pollen (1491) plant physiology (23111) plant development (11226) germination (3102) pollen germination (278) paleontology (250) fossils (191) physiology (77074) plant physiology (23109) plant development (11224) germination (3102) pollen germination (278) taxonomy (2644) new taxa (936) new genus (125) new species (712) Calendar Year Calendar Year Year (337475) 2006 (23836) Geographical Locations Geographical Locations Europe (17734) Portugal (661) North America (16962) United States (12631) Natural Resources, Earth and Environmental Sciences Natural Resources, Earth and Environmental Sciences natural resources (75944) biological resources (55960) flora (657) Plant Science and Plant Products Plant Science and Plant Products botany (53089) plant biology (52662) plant anatomy (36017) seed anatomy (2554) seeds (5899) inflorescences (5044) flowers (4290) androecium (1856) pollen (1491) plant physiology (23111) plant development (11226) germination (3102) pollen germination (278) Reference Types Reference Types Journal (337546) Research, Technology and Engineering Research, Technology and Engineering methodology (66114) microscopy (2476) electron microscopy (1772) scanning electron microscopy (1072) technology (49139) processing technology (28127) chemical treatment (922) Taxa - Plantae Taxa - Plantae Gnetopsida (40) Ephedraceae (22) Ephedra (22) Gnetaceae (16) Gnetum (15) Welwitschiaceae (3) Welwitschia (2) Abstract of Article: Will be presented in next release Date Last Accessed: Accessed January 20, 2015 Title of Article: Former Diversity of Ephedra (Gnetales): Evidence from Early Cretaceous Seeds from Portugal and North America Author(s) of Article: Will be identified in next release Citation: Annals of botany 2006 v.98 no.1 pp. 123-140 Click to View: (Click to View) Date of Publication: 2006 Location of Article: http://pubag.nal.usda.gov/pubag/article.xhtml?id=464508 Name of Publication: Annals of botany Publishing Company: Will be identified in next release Accession Number: 93831
