Open AccessLectotypification of two names in the genus Gymnostachyum (Acanthaceae)
Author(s) -
M. C. Shameer,
V. K. Sreenivas
Publication year - 2018
Publication title -
journal of threatened taxa
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.264
H-Index - 8
eISSN - 0974-7907
pISSN - 0974-7893
DOI - 10.11609/jott.4321.10.15.13044-13045
Subject(s) - acanthaceae , genus , taxon , geography , typification , biology , south asia , botany , zoology , taxonomy (biology) , nomenclature , ethnology , history
The genus Gymnostachyum Nees, belongs to family Acanthaceae, comprises about 52 species (www.plantsoftheworldonline.org), distributed mainly in tropical Asia (www.efloras.org). In India, 11 speciesand four varieties have been recorded to date from various geographical regions (Karthikeyan et al. 2009);of which, 12 taxa are recorded so far from peninsular India (Gamble 1924; Prabhukumar et al. 2015). Aspart of the ongoing taxonomic revision in the genus Gymnostachyum in India, the need for lectotypificationof two names was identified, viz., G. glabrum (Dalzell) T. Anderson (1850: 338, 1867: 506) and G. glabrumvar. denticulatum C.B. Clarke (1885: 509). Clarke (1885) delineates var. denticulatum from latter by its distinctly toothed and glabrous nature of lamina. The lectotypes are designated here according to ICN Shenzhen Code Art. 9.3 (Turland et al. 2018).