3 70 
KEYS TO THE FERNS OF BORNEO 
12. T. ternata (Baker) Copel. 
Nephrodium, Baker. Syn. Fit. p. 296, 1867. 
Sarawak, North Borneo. 
Endemic. 
Indusium reniform. 
13. T. subdigitata (Baker) Copel. 
Nephrodium , Baker. Journ. Linn. Soc. Bot. 
(1887) 259. 
Aspidium psilopodum C. Chr. 
Sarawak (Niah). 
Endemic. 
Indusium reniform. 
14. T. Barberi (Hooker) Copel. 
Sarawak, North Borneo. 
Malaya. 
Indusia wanting. 
15. T. polymorpha (Wall.) Copel. 
Sarawak, Dutch Borneo, North Borneo. 
Malaya to India. 
Indusium variable, fugacious or wanting. 
16. T. angulata (Willd.) Copel. 
Poly podium, Willd, Sp. PL 5 (1810) 185. 
Dutch Borneo. 
Sumatra, Java, Ambovna. 
Indusia minute, fugacious. 
17. T. melanorachis (Baker) Copel. 
Nephrodium , Baker,/, of Bot. 26 (1888) 325. 
Sarawak. 
Endemic. 
Indusium reniform, small. 
18. T. nuda (Baker) Copel. 
Nephrodium, Baker,/, of Bot. 17 (1879) 41. 
North Borneo. 
Bismarck archipelago. 
Indusium reniform. 
