Pteris tripartita

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Pteris tripartita Sw., J. Bot. (Schrader) 1800(2): 67 67 1801. (Syn: Asplenium lineare C.Presl ; Campteria pseudolonchitis C.Presl ; Litobrochia divaricata Brack. ; Litobrochia intermedia (Blume) J.Sm. ; Litobrochia marginata (Bory) C.Presl ; Litobrochia microdictyon Fée ; Litobrochia milneana Carruth. ; Litobrochia pseudolonchitis Fée ; Litobrochia tripartita (Sw.) C.Presl; Pteris attenuata Sw. ; Pteris connexa J.Sm. ; Pteris feliciennae F.Muell. ; Pteris guilleminei Ag. ; Pteris intermedia Blume ; Pteris linearis Wall. ; Pteris longipes Blume ; Pteris marginata Bory ; Pteris microdictyon (Fée) Hook. ; Pteris milneana (Hook.) Baker ; Pteris pedatifida Roxb. ; Pteris revolvens J.Agardh ; Pteris semiovata Poir. ; Pteris subpedata Wall. ; Pteris tripartita var. feliciennae (F.Muell.) Domin ; Pteris tripartita var. milneana Hook. ; Pteris uniseriata Poir. );
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Tropical & Subtropical Old World to Pacific: Andaman Is., Angola, Benin, Bismarck Archipelago, Borneo, Cameroon, Caroline Is., Central African Repu, Chagos Archipelago, China Southeast, Christmas I., Comoros, Cook Is., East Himalaya, Equatorial Guinea, Ethiopia, Fiji, Gabon, Ghana, Gilbert Is., Guinea, Gulf of Guinea Is., Hainan, India, Ivory Coast, Jawa, Kenya, Laos, Lesser Sunda Is., Liberia, Madagascar, Malaya, Maluku, Marianas, Marquesas, Marshall Is., Mauritius, Nauru, New Caledonia, New Guinea, Nicobar Is., Nigeria, Niue, Philippines, Queensland, Samoa, Santa Cruz Is., Seychelles, Sierra Leone, Society Is., Solomon Is., Sri Lanka, Sulawesi, Sumatera, Taiwan, Tanzania, Thailand, Tonga, Tubuai Is., Tuvalu, Uganda, Vanuatu, Vietnam, Wallis-Futuna Is., Zaïre as per POWO;
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Fern of Banyumas:
We need your help to identify our fern please.

This is Pteris tripartita, a kind of tropical lowish-altitude equivalent of the higher altitude P. wallichiana of the Himalayan region, but with many more anastomosing veins and areoles.
It occurs also in South India, found by Beddome and others, and rather recently mistaken for P. walllichiana.