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Los Ciateales o helechos arborescentes, con registro fosil se remontan al Jurasico. En la flora actual son parte vital de la… Expand Two fossil prints of leaves, found by Jaime de Porta in the deposit of Cerro Penagos (State of Tolima, Colombia) are studied here… Expand The present study was intended to find natural antioxidants from Cyathea nilgirensis Holttum, Cyathea gigantea (Wall. ex. Hook… Expand Cyathea spinulosa Wall. ex Hook. is a type genus of Cyatheaceae family. It is listed in endangered category of IUCN Red Data Book… Expand ALTHOUGH THE FERNS of southeastern Polynesia have been described in several papers, no separate list has previously been provided… Expand