KEYS TO THE FERNS OF BORNEO 
307 
4. H. DEMISSUM (Forst.) Sw. 
Sarawak (Mt. Penrissen). 
Malaya to New Zealand. 
5. H. AUSTRALE Willd. 
Sarawak, Dutch Borneo. 
Malaya to India and New Zealand. 
6. H. salakense Racib. 
Dutch Borneo. 
Java. 
7. H. productum Kze., var. integriloba Rosenstock. 
Dutch Borneo. 
The variety local, the species in Java. 
8. H. blumeanum Spr. 
Sarawak, Dutch Borneo, and Labuan or Kinabalu. 
Malaya to India and Polynesia. 
H. integrum v. d. B., reported by Rosenstock, is 
usually regarded as a s“ynonym of H. blumeanum. 
9. H. Foxworthyi Copel. n. sp. 
Sarawak (Santubong mountain). 
Local. 
10. H. Hallierii Ros. 
Dutch Borneo. 
Local. 
11. H. zollingerianum Kze. 
Dutch Borneo. 
Java. 
12. H. pachydermicum Cesati. 
Sarawak (Mt. Poe). 
Local. 
13. H. obtusum H. and A. 
North Borneo. 
Hawaii, New Guinea, Philippines. 
14. H. borneense Hooker. 
Sarawak. 
Local. 
15. H. Clemensijj Copel. n. sp. 
Kinabalu. 
Local. 
