KEYS TO THE FERNS OF BORNEO 
379 
23. A. petiolare (Pr.) Milde. 
Sarawak (Bidi). 
Philippines. 
This may be the fern reported from Borneo as Aspl. 
silvaticum Presl. 
24. A. iEQUiBASALE (Baker) comb. nova. 
Aspl. cequibasale Baker, Journ. Linn. Soc. 22 (1886) 
„ 225. ' 
Sarawak. 
Endemic. 
25. A. tomentosum (Bl.) Milde. 
Sarawak. 
Malaya, India. 
26. A. crenato-serratum (Bl.) Milde, 
Aspl. povrectum Wall. 
Sarawak, British North Borneo, 
Sumatra, Malacca, Philippines. 
27. A. confertum (Bak.) Copel. 
Sarawak. 
Sumatra. 
28. A. xiphophyllum (Baker) comb. nova. 
Aspl. xiphophyllum Baker, Journ. of Bot. (1879) 40. 
North Borneo. 
Malay Peninsula. 
A. fraxinifolium may have free veins and be looked 
for here. 
Its pinnae are much more ample than those of the 
preceding species. 
29. A. pallidum (Bl.) Milde. 
Dutch Borneo. 
Malaya to Papua and Queensland. 
30. A. porphyrorachis (Bak.) Copel. 
Common. 
Celebes, Malacca. 
