112 



Polypodiaceae. 



17. Dryopteris unitii O.K. (Nephrodium cucullatum Baker). See 



p. 56, under No. 7. 



Habitat and frequency not mentioned. 



18. Dryopteris setigera O.K. (Aspidium vile Kunze). See p. 57, 



under No. 8. 



According to R a c i b o r s k i 1) in 1897 very common on 

 Krakatao. 



19. Nephrolepis exaltata Schott. See p. 56, No. 6. 



Habitat and frequency not mentioned. 



20. Blechnuin orientate L. See p. 55, No. 3. 



Habitat and frequency not mentioned. 



21. Stenochlaena palustris BcdJ. (Acrostichum scandens j. Sm.). 



See p. 54, No. 2. 



As habitat of this species Penzig mentions but probably 

 wrongly steep rock-sides. According to Raciborski 2 ) 

 this plant occurred in 1897 in numerous specimens on 

 Krakatao. 



22. Ceropteris calome/anos Und. (Gymnogramme calomelanos 



Kaulf.) See p. 54, No. 1. 



In 1897 well-developed specimens were found on steep 

 rock-sides. Raciborski 3) states that the plant was very 

 common on the island in that year. 



23. Onychium silicu/osu/n C. Chr- (O auratum Kaulf.). See 



p. 60, No. 11. 



Penzig says of this species that it was not found back 

 in 1897. But according to Raciborski /f ), who was present 

 at the same trip, this plant was then ,,sehr haufig auf der 

 ,,Insel Krakatau". See p. 7. 



24. Pteris \ittata L- (recorded by Penzig under the name of 



Pt. longifolia L.). See p. 56, No. 5. 

 Habitat and frequency not mentioned. 



25. Pteridiutn aquilinum Ku/w (Pteris aquilina L.). See p. 58, No- 9. 

 Habitat and frequency not mentioned. 



!) Raciborski, Die I'teridophyten der Flora von Buitenzorg (1808), pp. 173, 174. 



2 ) Raciborski, Die Pteridopliyten der Flora von Buitenzorg (1898). pp 54, 55. 



'') Raciborski, Die Pteridophyteri der Flora von Buitenzorg (1898), pp (i!), 70. 



4 ) Raciborski, Die Pteridopliyten der Flora von Buitenzorg (1898), pp. 103,164. 



