Abstract Detail

Evolutionary History, Biogeography, and Floral Morphometrics of Salvia (Lamiaceae)

Hu, Guo-Xiong [1], Xiang, Chunlei [2], Drew , Bryan T [3].

East Asian Salvia: New names, new species, and staminal evolution.

Salvia is the largest genus in the Lamiaceae as well as the Lamiales, with approximately 1000 species. East Asia, one of three major biodiversity centers of Salvia, includes about 100 species of Salvia, mostly distributed within China. To date, 82 native species, including 72 endemics, are recognized from China. Tradionally, three distinct stamen types have been recognized described within EA Salvia, and have been regarded as the most important diagnostic character for the taxonomy of EA Salvia. As a part of an ongoing taxonomical revision of Chinese Salvia, we report a new combination, a new synonym, a new variety, a new species from China, and additional distinctive stamen types. Based on field investigation and specimen research, we upgraded S. bowleyana var. subbipinnata to a distinct species (S. subbipinnata (C. Y. Wu) G.X. Hu, C.L. Xiang & B.T. Drew), reduced S. wardii to a synonym of S. prattii, described a new variety (S. prattii var. alba G.X. Hu & X.H. Li) from the Hengduan Mountains and a new species from Central China (S. shimenensis G.X. Hu & D. Deng). Additionally, six distinct stamen types were observed within the EA Salvia. Stamen type A, with two fully fertile posterior thecae, only occurs in S. sonchifolia, and is ostensibly plesiomorphic within EA Salvia. Based on the latest phylogenetic framework and morphological results, we conclude that staminal morphology has evolved in parallel within the EA Salvia, and staminal structure alone is inadequate to delimit infrageneric categories.

1 - Guizhou University, College of Life Sciences, Guiyang, Guizhou, 550025, China
2 - Kunming Institute of Botany, Chinese Academy of Sciences, Key Laboratory for Plant Diversity and Biogeography of East Asia, No. 132, Heilogntan, Lanhei Road, Kunming, 650201, CN
3 - Biology, 2401 11th Ave, Bhs 312, Kearney, NE, 68849, United States

Keywords:
Taxonomical revision
new species
New variety
Synonym
Staminal evolution.

Presentation Type: Colloquium Presentations
Session: C09, Evolutionary history, biogeography, and floral morphometrics and Salvia (Lamiaceae)
Location: 105/Mayo Civic Center
Date: Wednesday, July 25th, 2018
Time: 9:00 AM
Number: C09005
Abstract ID:538
Candidate for Awards:None