L. is a significant constituent of the Cenozoic flora in the Northern Hemisphere. Currently, this genus exhibits a discontinuous distribution across Asia and North America, with the center of diversity being in southeastern Asia.
View Article and Find Full Text PDFis the largest genus within the Fagaceae and has a rich fossil record. Most of the fossil material is attributed to the subgenus based on leaves, pollen or rarely acorns and nuts. Fossil records of section characterized by ring-cupped acorns are relatively few and especially those described based on nuts are scant.
View Article and Find Full Text PDFThe genus , which together with the genera and comprise the subfamily Woodwardioideae of Blechnaceae, has a disjunct distribution across Central and North America, Europe and the temperate to tropical areas of Asia. Fossil records of occur throughout the Paleogene and Neogene of North America, Europe and Asia. However, well-preserved fertile pinna fossils of this genus have not yet been reported in South China.
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