Isodon brevipedunculatus,a new species from southern China,is described and illustrated.The phylogenetic position of the new species within the genus was analyzed based on two nuclear ribosomal DNA regions and an ingr...Isodon brevipedunculatus,a new species from southern China,is described and illustrated.The phylogenetic position of the new species within the genus was analyzed based on two nuclear ribosomal DNA regions and an ingroup sampling of about 80%of Asian species of Isodon.The results show that I.brevipedunculatus is recovered in a clade that consists of species mainly with glandular mericarps and that are distributed in the Sino-Japanese region.Combining molecular and geographical evidence,our study reveals that I.brevipedunculatus is most closely related to Isodon amethystoides and Isodon bifidocalyx,but differs from the former in lamina shape,number of flowers per cyme,and peduncle length,and from the latter in lamina indumentum,calyx morphology,and corolla length.展开更多
基金supported by the National Natural Science Foundation of China(Grant no.31670197)the CAS“Light of West China”Program,the Special Funds for the Young Scholars of Taxonomy of the Chinese Academy of Sciences(Grant no.ZSBR-006)+1 种基金the“Ten Thousand Talents Program of Yunnan”(YNWR-QNBJ-2018-279)the“Yunnan Fundamental Research Projects”(2019FI009).
文摘Isodon brevipedunculatus,a new species from southern China,is described and illustrated.The phylogenetic position of the new species within the genus was analyzed based on two nuclear ribosomal DNA regions and an ingroup sampling of about 80%of Asian species of Isodon.The results show that I.brevipedunculatus is recovered in a clade that consists of species mainly with glandular mericarps and that are distributed in the Sino-Japanese region.Combining molecular and geographical evidence,our study reveals that I.brevipedunculatus is most closely related to Isodon amethystoides and Isodon bifidocalyx,but differs from the former in lamina shape,number of flowers per cyme,and peduncle length,and from the latter in lamina indumentum,calyx morphology,and corolla length.
