Hymenasplenium obscurum

Hymenasplenium obscurum (Bl.) Tag.,  Acta Phytotax. Geobot. 7: 83, 1938 (syn: Asplenium auritum var. obscurum (Bl.) E.Fourn.; Asplenium cristatum Wall. (ambiguous synonym); Asplenium erosodentatum Bl.; Asplenium obscurum Bl.; Asplenium obscurum var. angustum Tag.; Asplenium serraeforme Mett.; Asplenium unilaterale var. bivalvatum B.K.Nayar & Geev.; Asplenium unilaterale var. cristatum Bonap.; Hemiasplenium obscurum var. angustum (Tag.) Tag.; Hymenasplenium bilabiatum N.Murak.; Hymenasplenium bivalvatum (B.K.Nayar & Geev.) Viane);
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Tanzania to Limpopo, Madagascar, Tropical & Subtropical Asia: Assam, Borneo, China South-Central, China Southeast, East Himalaya, Hainan, India, Jawa, Lesser Sunda Is., Madagascar, Malawi, Malaya, Maluku, Mozambique, Myanmar, Nepal, New Guinea, Northern Provinces, Sri Lanka, Sulawesi, Sumatera, Taiwan, Tanzania, Thailand, Vietnam, Zimbabwe as per POWO;

Tanzania, Malawi, Mozambique, E-Zimbabwe, South Africa (Limpopo), Madagascar, China (Fujian, Guangdong, Guangxi, Guizhou, Hainan, Yunnan), Vietnam, India (Andhra Pradesh, Arunachal Pradesh, Chhattisgarh, Kerala, Madhya Pradesh, Maharashtra, Manipur, Meghalaya, Karnataka, Mysore, Odisha, Tamil Nadu), Sri Lanka, Bhutan, Myanmar [Burma], N-Thailand, Java, Nepal, Sumatra, Sulawesi, Borneo, Moluccas, Palawan, New Guinea, Lesser Sunda Isl. (Lombok, Bali, Sumbawa) as per Catalogue of Life;

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Asplenium unilaterale SN17420 : 3 posts by 2 authors. Attachments (1) – 4 mb.
Asplenium unilaterale Lam. Wild Terrestrial fern from Western Ghats Tamilnadu. 

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References:
Catalogue of Life  The Plant List Ver.1.1Tropicos  IPNI  Flora of China  JSTOR (Specimen) India Biodiversity Portal  Flora of peninsular India   Plant illustrations  Flora of Zimbabwe Pteridophytes of Africa  Flora of Mozambique