A phylogenetic analysis of the Cryptocarya group (Lauraceae), and relationships of Dahlgrenodendron, Sinopora, Triadodaphne, and Yasunia

• DOI: 10.11646/phytotaxa.158.2.1
• Publication Date: 2014-02-03T02:40:26Z
• Authors: Jens Gunter Rohwer; PEDRO LUIS RODRIG...; BARBARA RUDOLPH; HENK VAN DER WERFF
• Keywords: Paraphyly; Synapomorphy; Caesalpinioideae; Perianth; Sister group; Monophyly; Lauraceae

A phylogenetic analysis based on nuclear ITS and plastid trnK intron sequences confirms that Dahlgrenodendron, Sinopora, Triadodaphne, Yasunia are members of the Cryptocarya group, as expected from morphology. Dahlgrenodendron South Africa is sister to Aspidostemon Madagascar. Triadodaphne inaequitepala nested within Endiandra (both Australasia), America among American Beilschmiedia species. Sinopora a member clade, but its precise position still uncertain. Among large genera clearly monophyletic, appears be well, if T. included. paraphyletic with respect (at least) Potameia Yasunia. Most well-supported clades geographically homogeneous, except clade including Chilean alba two New Caledonian Both have reached Americas more than once. Four-locular anthers plesiomorphic in group; two-locular arisen by fusion pollen sacs theca. In fruit type, ovary completely enclosed receptacular tissue; superior fruit, seated free pedicel, synapomorphy clade.