378 KEYS TO THE FERNS OF BORNEO 
14. A. maximum (Don) Copel. 
A. latifolium Milde. 
Sarawak, British North Borneo, Dutch Borneo. 
India to Polynesia. 
More than one species is included here. These 
are usually large ferns, and the usual collections are 
fragments; as a result, the group is badly confused. 
Diplazium Hosei Christ is not known to me. It is 
supposed to be the plant described by Hose as a variety 
of A. maximum , having bipinnate fronds; but later 
descriptions make it simply pinnate. 
15. A. accedens (Bl.) Milde. 
Common. 
Africa to Polynesia. 
16. A. carnosum Copel. 
Sarawak (Mt. Matang). 
Local. 
17. A. sarawakense Copel. 
Sarawak (Mt. Matang). 
Local. 
18. A. sorsogonense (Pr.) Milde. 
Sarawak. 
India across Malaya. 
The variety poeense is a very lax form, 
ig. A. Christii (C. Chr.) Copel. 
Sarawak, British North Borneo. 
Java, Malacca. 
20. A. cyatheifolium (Rich.) Milde. 
Sarawak. 
Malaya, Polynesia. 
21. A. MURICATUM Copel. 
Sarawak, British North Borneo. 
Endemic. 
22. A. polycarpum Copel. 
Sarawak. 
Endemic. 
