Fig. 2From: A new macrofossil ephedroid plant with unusual bract morphology from the Lower Cretaceous Jiufotang Formation of northeastern ChinaMorphological details of Jianchangia verticillata gen. et sp. nov. a a stem portion displaying the multiple longitudinal striations; b ovulate cones displaying the two whorls of linear bracts and the enclosed chlamydosperms; c diagram of an ovulate cone in (b) displaying structural details. Abbreviations: l, parallel-veined leaves/bracts; mt, micropylar tube; w1, the proximal whorl of bracts; w2, the distal whorl of bractsBack to article page