KEYS TO THE FERNS OF BORNEO 
387 
2. B. ORIENTALE L. 
Common. 
India to Polynesia and Australia. 
The variety undulatum is also reported. 
3. B. serrulatum Rich. 
Labuan, Jesselton. 
Pulu Condor (Cochin-China), Malacca, New 
Caledonia, Australia, Tropical America. 
4. B. Patersoni (R. Br.) Mett. 
Kinabalu (Clemens 10352). 
India to New Zealand. 
5. B. procerum (Forst.) Sw. 
B. capense (L) Schlecht, non Burm. 
Sarawak, Kinabalu. 
Malaya, Polynesia, South Africa. 
6. B. vestitum (Bl.) Kuhn. 
Sarawak (Matang Road), Dutch Borneo (. Halliev .) 
Malaya. 
7. B. Fraseri (Cunn.) Luerss. var. philippinensis 
Christ. 
Kinabalu (Clemens 11032). 
Philippines (the same form), New Zealand. 
50 . PLAGIOGYRIA (Kunze) Mettenius. 
a. Fronds less than 10 cm. long 
at. Fronds about 15 cm. long 
a*. Fronds about 20 to 50 cm. long. 
b. Pinnae not adnate. 
c. Lamina glaucous beneath 
cc Lamina not glaucous 
b2. Pinnae of sterile frond adnate 
1. P. MINUTA Copel. 
Sarawak. 
Endemic. 
2. P. egenolfioides (Baker) Copel. 
Sarawak. 
Endemic. 
1. P. minuta. 
2. P. egenolfioides. 
3. P. glauca. 
4. P. pycnophylla. 
5. P. adnata. 
