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KEYS TO THE FERNS OF BORNEO 
2 . BOTRYCHIUM Swartz. 
A single species B. dancifolium. 
B. DAUCIFOLIUM Wall. 
Kinabalu. 
Java, Philippines, India. 
3 . HELMINTFIOSTACHYS Kaulfuss. 
A single species H. zeylanica. 
H. zeylanica (L.) Hooker. 
Sarawak, Dutch Borneo. 
Malaya to India, Formosa, New Caledonia and 
Australia. 
PAM. II. MARATTIACEiE. 
a. Frond palmate i. Christensenia. 
at. Frond simply pinnate 2. Macroglossum. 
as. Frond at least bipinnate. 
b. Sporangia contiguous but free 3. Angiopteris. 
b 1. Sporangia of each sorus fused together 4. Marattia. 
1 . CHRISTENSENIA Maxon. 
A single species C. asculifolia 
C. A 3 SCU lifolia (Bl.) Maxon (Kaulfussia Blume). 
Sarawak, Dutch Borneo. 
Malaya to India. 
2 . MACROGLOSSUM Copeland.* 
A single known Bornean species M. Alidce. 
M. Alidce Copeland. 
Sarawak (described from Bidi). 
Endemic. 
[*M. Smithii (Racib.) Campbell, described from a plant in the 
Buitenzorg garden, supposed to have come from Borneo, has been found 
wild in Bencoelen by Brooks. This may have been the source of the 
Buitenzorg specimen.] 
