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31 May 2017 Pseudoheterocaryum, a new genus segregated from Heterocaryum (Boraginaceae) on the basis of molecular data
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Abstract
The phylogeny of Heterocaryum and Suchtelenia was examined using sequence data from the internal transcribed spacer region of the nuclear rDNA (ITS) and plastid trnL intron and trnL–trnF intergenic spacer (trnL–F) regions. Results indicated that Heterocaryum is non-monophyletic because of the inclusion of Suchtelenia calycina (C.A.Mey.) A.DC. Heterocaryum laevigatum (Kar. & Kir.) A.DC. formed a distinct branch sister to S. calycina and remaining Heterocaryum species. Hence, all species of Heterocaryum except H. laevigatum (type species of the genus) are transferred to a new genus, Pseudoheterocaryum. Taxonomic descriptions are presented for Pseudoheterocaryum and Heterocaryum, as well as a diagnostic key to the three genera included in the present study.
© CSIRO 2017
Nasim Saadati, Maryam Khoshsokhan Mozaffar, Mahboubeh Sherafati and Shahrokh Kazempour Osaloo "Pseudoheterocaryum, a new genus segregated from Heterocaryum (Boraginaceae) on the basis of molecular data," Australian Systematic Botany 30(1), (31 May 2017). https://doi.org/10.1071/SB16022
Received: 20 May 2016; Accepted: 1 February 2017; Published: 31 May 2017
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