File:Arlenea diagram.jpg

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English: From source: Reconstruction of Arlenea delicata. A: Plant portion displaying the habit, opposite branches phyllotaxis, and the terminal female cones; B: Enlarged reproductive branch showing terminal FRUs and detail of swollen receptacle; C: Detail of the FRU showing the pairs of proximal and distal bracts and two ovals internal chlamydosperms. Scale bar = 2 mm (Abbreviations: r, receptacle; w1, proximal whorl of bracts; w2, distal whorl of bracts; c, chlamydosperms). By Júlia d'Oliveira.
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Source Arlenea delicata gen. et sp. nov., a new ephedroid plant from the Early Cretaceous Crato Formation, Araripe Basin, Northeast Brazil Plant Diversity https://doi.org/10.1016/j.pld.2023.06.008
Author Alita Maria Neves Ribeiro Yong Yang, Antônio Álamo Feitosa Saraiva, Renan Alfredo Machado Bantim, João Tavares Calixto Junior, Flaviana Jorge de Lima

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