Results 61 to 70 of about 2,327 (226)
Diversity, 2020 The United States is currently home to five native cycad species. We provide a discussion on these five cycad species to illuminate how evolutionary and geopolitical processes influence phytogeography and published checklists of threatened plants.
Benjamin E. Deloso +2 more
doaj +1 more source
Evolutionary implications of a deep‐time perspective on insect pollination
Biological Reviews, Volume 100, Issue 4, Page 1452-1466, August 2025.ABSTRACT Plant pollination by insects represents one of the most transformative and iconic ecological relationships in the natural world. Despite tens of thousands of papers, as well as numerous books, on pollination biology published over the past 200 years, most studies focused on the fossil record of pollinating insects have only been published in ...
David Peris +10 more
wiley +1 more source
Revista Chilena de Historia Natural, 2003 Se entrega un aporte al conocimiento de las Cycadales y Cycadeoidales presentes en los sedimentos del Triásico superior de la Formación Santa Juana (Cárnico-Rético) de la Región del Biobío, Chile.
MARCELO LEPPE, PHILIPPE MOISAN
doaj
PhytoKeys, 2020 Ceratozamia is a genus of cycads occurring in eastern Mexico and Central America. In this study, we describe a new species from the Pacific region of Mexico in Guerrero state.
L. Martínez-Domínguez +4 more
semanticscholar +1 more source
Middle Jurassic vegetation dynamics based on quantitative analysis of spore/pollen assemblages from the Ravenscar Group, North Yorkshire, UK [PDF]
, 2016 Quantitative analysis of the distribution of dispersed spores and pollen (sporomorphs) has been used to assess temporal floral variation through the Middle Jurassic Ravenscar Group (Aalenian–Bathonian), North Yorkshire, UK.
Slater, S.M., Wellman, C.H.
core +2 more sources
Acta Palaeobotanica, 2014 New compression leaf material of Ceratozamia (Zamiaceae) has been recognised in the European Cenozoic. A leaflet of Ceratozamia floersheimensis (Engelhardt) Kvaček was recovered among unidentified material from the Oligocene of Trbovlje, former Trifail ...
Kvaček Zlatko
doaj +1 more source
Threats to cycad biocultural heritage in the Amami Islands, Japan
Plant Species Biology, Volume 40, Issue 4, Page 292-310, July 2025.The central point we seek to frame in this article is that the increasing infestations of cycad aulacaspis scale in the Amami guntō existentially threaten not only the islands' sotetsu but rather entire cultural systems and natural ecologies that have developed around these plants.
Joshua D. Englehardt +4 more
wiley +1 more source
Intra-specific variability and unusual organization of the repetitive units in a satellite DNA from Rana dalmatina: molecular evidence of a new mechanism of DNA repair acting on satellite DNA. [PDF]
, 2006 We have characterized the S1 satellite from eight European populations of Rana dalmatina by Southern blot, cloning and a new method that determines the sequence variability of repetitive units in the genome.
CHINALI, GIANNI +2 more
core +1 more source