304 KEYS TO THE FERNS OF BORNEO 
2 . G. VULCANICA Bl. 
Kinabalu. 
Java, Celebes, Philippines. 
Not very distinct from the preceding. 
Subgenus II. DICRANOPTERIS. 
a . Fronds pinnatifid or pinnate above highest 
fork. 
b. Without special leaflets at the forks. 
c. Segments coriaceous. 
d. Segments somewhat oblique, linear 
oblong 
di. Segments horizontal, linear 
a. Thin herbaceous 
fri. With two special leaflets at each fork. 
c. Ultimate branches short, with few 
segments 
c 1 . Ultimate branches bearing many seg¬ 
ments 
a 1 . Frond bipinnatifid above any fork. 
b. Segments densely pubescent beneath 
b 1. Not densely pubescent. 
c. Pinnules stalked, lower segments 
reduced 
re Lower segments not reduced 
3. G. vestita. 
4. G. Icevigata. 
5. G. Hallieri. 
6. G. Warburgii. 
7. G. line iris. 
8. G. bnllata. 
9. G. Norrisii. 
10. G. japonica. 
3. G. VESTITA Bl. 
Sarawak, North Borneo. 
Malaya. 
Baker has distinguished a var. paleacea, from North 
Borneo. 
4. G. laevigata (Willd.) Hooker. 
Common. 
Malaya. 
5. G. Hallieri Christ. 
Dutch Borneo. 
Local. 
6. G. Warburgii Christ. 
Dutch Borneo. 
Celebes, Batjan. 
