Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Sedum formosanum subsp. miyakojimense (Crassulaceae), a new subspecies from Miyako-jima Island of the Ryukyu Islands, Japan.
PhytoKeys ( IF 1.3 ) Pub Date : 2020-05-26 , DOI: 10.3897/phytokeys.148.48957 Takuro Ito 1, 2 , Chih-Chieh Yu 3 , Masatsugu Yokota 4 , Goro Kokubugata 2
PhytoKeys ( IF 1.3 ) Pub Date : 2020-05-26 , DOI: 10.3897/phytokeys.148.48957 Takuro Ito 1, 2 , Chih-Chieh Yu 3 , Masatsugu Yokota 4 , Goro Kokubugata 2
Affiliation
We re-examined the taxonomic status of plants treated as Sedum formosanum (Crassulaceae) from Miyako-jima Island of the Ryukyu Islands, Japan, using morphological comparison and molecular phylogenetic analyses with related species. In morphology, plants from Miyako-jima Island bore a close resemblance to the other plants of S. formosanum, but differed in being perennial, polycarpic, and having lateral axillary branches. Molecular analyses based on ITS of nrDNA and six regions of cpDNA sequencing indicated that the Miyako-jima plants formed a distinct subclade. This subclade was part of a polytomy with three other subclades comprising nine taxa endemic to Taiwan and S. formosanum from other areas, including the type locality. Therefore, we propose and describe the Miyako-jima plants as a new subspecies, Sedum formosanum subsp. miyakojimense.
更新日期：2020-05-26
京公网安备 11010802027423号