KEYS TO THE FERNS OF BORNEO 
385 
28. A. Elmeri Christ. 
Kinabalu, below the Paka cave {coll. Topping). 
Luzon. 
29. A. affine Sw. 
Sarawak, British North Borneo. 
Comores to Polynesia. 
30. A. nitidum Sw. 
Sarawak, Dutch Borneo. 
India, Malaya. 
Van Alderwerelt distinguishes, as A. glaucophyllum, 
an ample form with the upper surface said to be glaucous. 
I have from Sarawak specimens of similar form and s'vze> 
but not glaucous. 
31. A. dichotomum Hook. 
Kinabalu, Dutch Borneo. 
32. A. Belangeri Kze. non Bory. 
Sarawak, Dutch Borneo. 
Malaya to Tonkin. 
Often regarded as a mere form of A. tenerum, with 
which, in some places, it either hybridizes or intergrades. 
33. A. scandens J. Sm.; Hook. 
Sarawak. 
Philippines and Borneo to New Guinea and Fiji. 
47 . PHYLLITIS Ludwig. 
Triphlebia longifolia (Presl.) Baker, better called 
Phyllitis longifolia (Presl.) O.K., is reported by Hose from 
Sarawak. A specimen sent me from Bidi, labelled T. 
longifolia , is Asplenium scolopendroides. 
Phyllitis d’TJrvillei (Bory) O.K. is reported by 
van Alderwerelt van Rosenburg from the boundary 
between Dutch Borneo and British North Borneo, with 
the comment that a spurious veinlet between the sori of 
each pair may or may not be present. 
