La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	The generic position of Lithraea brasiliensis Marchand (Anacardiaceae): evidence from fruit and seed structure
Auteurs :	Marguerite E. Pienaar, Auteur ; Irmgard Von Teichman, Auteur
Type de document :	Article
Dans :	Botanical Journal of the Linnean Society (126(4) 1998-04-01)
Article en page(s) :	327-337
Résumé :	In Lithraea brasiliensis Marchand the exocarp is characterized by brachysclereids and the parenchymatous mesocarp by large secretory ducts; inner sclerenchymatous ridges are absent in die mesocarp. The stratified endocarp s. s. comprises a crystal layer, palisade-like brachysclereids, osteosclereids and macrosclereids. The osteosclereids are characterized by a distinct light line or linea lucida, which has hitherto also been recorded in a species of Rhus. In the partially pachychalazal seed, a typical Anacardiaceae-like hypostase typifies the chalazal part of the seed coat, while the integumentary seed coat reveals a well preserved outer epidermis, a compressed endotegmen and well developed inner cuticular layer. Our comparison of die characters of the ovule, fruit and seed of L. brasiliensis with those of various species of Rhus and other genera of the tribe Rhoeae (some closely related) presents evidence that L. brasiliensis could be most closely associated with the genus Rhus.
En ligne :	https://doi.org/10.1111/j.1095-8339.1998.tb01385.x

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