La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Nyssidium jiayinense sp. nov. (Cercidiphyllaceae) of the Early Tertiary from north-east China
Auteurs :	Guang-Ping Feng, Auteur ; Cheng-Sen Li, Auteur ; Sergey G. Zhilin, Auteur ; Yu-Fei Wang, Auteur ; Ivan G. Gabrielyan, Auteur
Type de document :	Article
Dans :	Botanical Journal of the Linnean Society (134(3) 2000-11-01)
Article en page(s) :	471-484
Résumé :	Nyssidium jiayinense, a new species of the extinct genus Nyssidium, Cercidiphyllaceae, is described from the Palaeocene of north-east China. The infructescences of the fossil are paniculate with 14–22 follicles in individual racemose branches. The follicles occur in pairs with opposite ventral sutures. The follicle wall is three-layered, with a thin epidermis. Mesocarp fibres are longitudinal and endocarp fibres transverse. The distinct features of the infructescence structure differ from all other fossil Cercidiphyllum-like plants and living Cercidiphyllum. The fossil provides new morphological evidence supporting the hypothesis that the follicle clusters in extant Cercidiphyllum evolved by reduction from an elongated inflorescence.
En ligne :	https://doi.org/10.1111/j.1095-8339.2000.tb00544.x

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