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. 

Abstract
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

  

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