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Type: Article
Published: 2023-02-16
Page range: 149–160
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Leptochilus ornithopus (Polypodiaceae), a new hemiepiphytic fern species from central highlands of Vietnam

Makino Herbarium, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
Department of Botany, Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi-10000, Vietnam
The Kagoshima University Museum, Kagoshima University, 1-21-30 Korimoto, Kagoshima, 890-0065, Japan
Makino Herbarium, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
Faculty of Education, Tokyo Gakugei University, 4-chome-1-1 Nukuikitamachi, Koganei, Tokyo, 184-8501, Japan


Leptochilus ornithopus T. Fujiw. & B.H. Quang (Polypodiaceae, Polypodiales) is described as a new species, based on integrated evidence from phylogenetic and morphological examinations. The new species is most similar to L. digitatus and L. longipes but distinguished from both by its having ovate rhizome scales, narrowly cuneate and gradually reduced lamina base, narrowly lanceolate lateral lobes of lamina which are widest at proximal 1/3 or base, and the sori at an angle of 31–38(–40) degree with the midrib.


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