388 KEYS TO THE FERNS OF BORNEO 
3. P. GLAUCA (Bl.) Mett. 
Kinabalu. 
Malaya to Yunnan and India. 
4. P. pycnophylla (Kze) Mett. 
Sarawak, Dutch Borneo, Kinabalu. 
Malaya to Yunnan and India. 
The sterile pinnge are typically serrate. The variety 
Integra, from Bengkarum mountain, has entire pinnae. 
5. P. adnata (Bl.) Bedd. • 
Kinabalu, Batu Lawi. 
Malaya to Yunnan and Japan. 
51. MATONIA R. Brown. 
a. Segments oblique, acute 1. M. pectinata. 
.fli. Segments nearly horizontal, obtuse 2. M. Foxworthyi . 
1. M. PECTINATA R. Br. 
Sarawak, Dutch Borneo. 
Malay Peninsula, Sumatra. 
j 7 
Bornean plants referred to this species were perhaps 
the following. 
2. M. Foxworthyi Copel. 
Sarawak (Mt. Poe). 
Amboyna. 
52. PHANEROSORUS Copeland. 
P. sarmentosus (Baker) Copel. 
Matonia savmentosa Baker. 
Sarawak (Niah, Bidi). 
Endemic. 
53. DIPTERIS Reinwardt. 
a. Sori in one row on each side of costa 1. D. lobbiana. 
.a 1 . Sori scattered. 
b. Margin entire. 
c. Frond 2-3 times forked, segments 
lanceolate 2. D. Nieuwenhuisii. 
c u Frond 2-5 times forked, segments 
linear 3. D. quinquefurcata . 
in. Margin coarsely serrate 4. D. conjugate. 
