In:
PhytoKeys, Pensoft Publishers, Vol. 230 ( 2023-08-07), p. 115-130
Abstract:
Our first record of the rare and scatteredly distributed Ixeridium sagittarioides for Guizhou, China, triggered a study to assess its systematic position. The species was placed in four different genera in the course of its taxonomic history and was recently treated with doubts as a member of Ixeridium in the Flora of China. Comparative morphological investigation and phylogenetic analyses based on the nuclear ribosomal DNA internal transcribed spacer (nrITS) and five non-coding plastid DNA regions ( petD region, psbA-trnH , trnL-trnF , rpl32-trnL (UAG) and 5´rps16-trnQ (UUG) spacers) provided evidence that the species is not a member of Ixeridium and the Crepidinae but has evolved by ancient hybridisation of members of the Lactuca alliance (Lactucinae). It is reinstated as Lactuca sagittarioides and a comprehensive morphological description is provided, based on material from its entire range of distribution.
Type of Medium:
Online Resource
ISSN:
1314-2003
,
1314-2011
DOI:
10.3897/phytokeys.230.107733
DOI:
10.3897/phytokeys.230.107733.figure1
DOI:
10.3897/phytokeys.230.107733.figure2
DOI:
10.3897/phytokeys.230.107733.figure3
DOI:
10.3897/phytokeys.230.107733.figure4
Language:
Unknown
Publisher:
Pensoft Publishers
Publication Date:
2023
detail.hit.zdb_id:
2579891-1
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