416 keys to the ferns of Borneo 
6. V. lloydiifolia Racib. 
“ Borneo,” teste van Alderwerelt. 
Sumatra, Java, Celebes. 
7. V. angustifolia Bl. non Baker. 
Dutch Borneo. 
Malacca, Sumatra, Java. 
8. V. crassifolia Baker. 
Sarawak. 
Banca. 
The description is strongly suggestive of Sclero- 
glossum. 
9 . V. ensiformis Sw. 
Dutch Borneo ? 
Java, Sumatra, the Mascarenes. 
10. V. ELONGATA Sw. 
Common. 
Malaya to India, Polynesia and Australia. 
This is another group-species. 
11. V. ZOSTERIFOLIA Willd. 
Common. 
The Comores to Polynesia. 
72. SCLEROGLOSSUM V. ALD. V. ROSEN. 
a. Frond about 1.5 mm. wide 
a 1. Frond wider. 
b. Veins simple 
G. Veins forked. 
d. Edge of frond thin 
d 1 . Edge of frond thick 
1. S angustissimum. 
2. S, debile. 
3. S. pusillum. 
4. S. sulcatum. 
1. S. angustissimum Copel. n. §p. 
Kinabalu. 
Local. 
2. S. debile (Mett.) v. A. v. R. 
Sarawak, North Borneo, Dutch Borneo. 
Endemic. 
