Weinmannia is a
genus of trees and shrubs in the family
Cunoniaceae. It contains 90 species, which range from Mexico through Central and South America including the Caribbean, and to the
Mascarene Islands (Mauritius and Réunion) in the western Indian Ocean.[1] It is absent from mainland Africa and Australia, but some fossils have been attributed to Weinmannia in Australia.[2]
Leaves are simple or pinnate, with a margin usually toothed, and interpetiolar stipules. Flowers are bisexual, white, arranged in racemes. The fruit is a capsule opening vertically from the top to the base. Seeds hairy without wings.
Until recently the genus included five sections:[3][4]
Fasciculata (mostly Malesia, from Sumatra to Fiji)
Inspersa (Madagascar)
Leiospermum (mostly Pacific, from Bismarck archipelago to the Marquesas)
Spicata (Madagascar and Comores)
Weinmannia (Central and South America, Mascarenes)
A
phylogenomic study by Pillon et al. (2021) concluded that Weinmannia was paraphyletic, and formed two distinct clades. The species belonging to the four
Old World sections – Fasciculatae, Inspersae, Spicatae, and Leiospermum – formed a monophyletic group, which is sister to the Old World (mostly
New Caledonian) genera Cunonia and Pancheria. Section Weinmannia, which includes species from the Americas and the Mascarene Islands, is sister to the Old World assemblage. They proposed placing the four Old World sections into the revived genus Pterophylla, with genus Weinmannia limited to the American and Mascarene species in section Weinmannia.[4]
^
Barnes, R.W., Hill, R.S. & Bradford, J.C. (2001) The history of Cunoniaceae in Australia from macrofossil evidence. Australian Journal of Botany 49: 301‑20.
^
Bradford, J.C. (1998) A cladisitc analysis of species groups in Weinmannia (Cunoniaceae) based on morphology and inflorescence structure. Annals of the Missouri Botanical Garden 85 (4): 565‑93.
^
abPillon, Y., H. C. F. Hopkins, O. Maurin, N. Epitawalage, J. Bradford, Z. S. Rogers, W. J. Baker, and F. Forest. 2021. Phylogenomics and biogeography of Cunoniaceae (Oxalidales) with complete generic sampling and taxonomic realignments. American Journal of Botany 108(7): 1181–1200.
External links
"Weinmannia". Encyclopedia of Chilean Flora (in Spanish). Archived from
the original on 15 December 2010. Retrieved 4 February 2014.