Sunday, January 6, 2019

[Botany • 2018] Colura sigmoidea • The Genus Colura section Gamolepis (Lejeuneaceae, Marchantiophyta) in Malesian Region, with the Description of A New Species

Colura sigmoidea  Sangratt., Chantanaorr. & R.L.Zhu

in Sangrattanaprasert, Chantanaorrapint & Zhu, 2019. 

The taxonomic account of the genus Colura sect. Gamolepis in the Malesian region is presented based on fresh materials from field surveys and herbarium specimens. Five species are recognised including: C. cristata, C. meijeri, C. valida, C. verdoornii, and one new species, C. sigmoidea, described and illustrated. The new species is similar to C. cristata, but differs in having dioicous sexuality, ovate to lanceolate lobule sac ending with a small apical crest (consisting of 3–5 cells), small valve consisting of 30–40 cells and basal median cells of valve adnate with hinge cells forming a sigmoid curve in outline. A key to species, taxonomic descriptions and illustrations are provided; ecology and geographical distribution of the species are noted.

Keywords: Colura, Colura sigmoidea, leafy liverwort, Malesian region, sect. Gamolepis, Bryophytes

Colura sigmoidea  Sangratt., Chantanaorr. & R.L.Zhu 



  Jiroat Sangrattanaprasert, Sahut Chantanaorrapint and Rui-Liang Zhu. 2019. The Genus Colura section Gamolepis (Lejeuneaceae, Marchantiophyta) in Malesian Region, with the Description of Colura sigmoidea.  Phytotaxa. 387(1); 40–54. DOI: 10.11646/phytotaxa.387.1.3