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| Ophioglossum isanense S. Petchsri, Li-Bing Zhang & T. Jaruwattanaphan, in Petchsri, Zhang & Jaruwattanaphan, 2022. |
Abstract
A new species of Ophioglossum, O. isanense, from Northeast Thailand is described and illustrated. It may be diagnosed from other congeners by a combination of morphological characters including: its smaller size, cylindrical rhizome, stoloniferous roots, brownish green common stalk and trophophylls, the presence of persistent leaf sheath at the top of the rhizome and by the unique structure of spores. Molecular study also supported it as a distinct species. A summary of the ecology and an IUCN conservation status of the new species are provided.
Keywords: Thai adder's-tongue, Ophioglossum, stoloniferous rhizomes, spore, Pteridophytes
Ophioglossum isanense S. Petchsri, Li-Bing Zhang & T. Jaruwattanaphan
กูดดินปิ่นสกล
Etymology: —The species epithet “ isanense” refers to the Northeast Thailand or Isan where the species was found.
Sahanat Petchsri, Li-Bing Zhang and Tassanai Jaruwattanaphan. 2022. Ophioglossum isanense sp. nov. (Ophioglossaceae, Pteridophyta) from Thailand. Phytotaxa. 533(3); 158-164. DOI: 10.11646/phytotaxa.533.3.1
