252 



An epiphytic species of this genus was collected at an 

 altitude of 600 m. 



14 (51). Drymoglossum heterophyllum C. Chr. 



Epiphytical fern, spread from the plains up to an altitude 

 of 1000 m., rather common in West- and Central-Java, seem- 

 ingly rare in the eastern part of the island. It grows on 

 trunks and branches of trees and shrubs whose crowns give 

 but a moderate amount of shadow; the plant needs rather 

 much light. It is often found on trees planted along roads, in 

 gardens and in native villages. The reproduction is effected 

 by ramification of the rhizome and by spores. 



Collected at an altitude of 100 m. ,,/Vo real forest- plant" 

 (D. v. L). 



15 (54). Hymenolepis brachystachys /. Sm. 



Epiphytical fern, possibly only a lowland form of the fol- 

 lowing species, spread throughout the moister regions of 

 West- and Central-Java from the plains up to an altitude of 

 i 900 m., mostly on trees planted along road-sides and in 

 native villages, sometimes also in teak-forests. The reproduc- 

 tion is effected by spores. 



Collected at an altitude of 500 m. 



/6 (55). Hymenolepis spicata Presl, 



Epiphytical fern, spread throughout the more humid parts 

 of Java from the plains up to an altitude of 2800 m., espe- 

 cially above 500 m. It grows in more or less shadowed 

 localities, on trees planted along roads and in native villages, 

 in secondary and primary forests, in tea- and Cinchona-plan- 

 tations. The reproduction is effected by spores. 



Collected at an altitude of 700 m. 



17 (61). Polypodium accedens BI. (Pleopeltis accedens Moore). 



Small fern with a long creeping rhizome, spread through- 

 out West- and Central-Java between 600 and 1500 m. above 

 sea-level but only in regions where the east-monsoon is 

 feeble. It inhabits well-shadowed humid localities where it 

 lives either on rocks or and such is mostly the case as 

 an epiphyte on trees, often on small ones or on rather thin 

 branches. The reproduction is effected by ramification of 

 the rhizome or by spores. 



Collected at an altitude of 600 m, 



