266 



2. Dryopteris flaccida O.K. See p. 57, No. 8. 



This species, an inhabitant of humid dark forests is 

 recorded by Mr. Docters van Leeuwen only for the 

 sixth trip of April 1919. A habitat is not given. If it was 

 really found on this excursion it is hardly to be believed 

 that it was not collected in the forest. But as it is not 

 given in the list of forest-plants it may have crept into 

 Appendix 1 by some error. Treub wrongly mentioned this 

 species for the first trip in 1886; the plant in question was 

 Dryopteris setigera. In 1919/1920 when Mr. Docters van 

 Leeuwen published his papers, this error had not yet 

 been detected, yet he does not mention the species for 

 Treub's excursion. Therefore in Appendix I the figure 6 

 may be only a misprint for 1 . 



3. Aspidium spec. 



All Javanese species of Aspidium are inhabitants of well- 

 shaded and rather humid localities. 

 Habitat not mentioned. 



4. Po/ypodium longissimum Bl. (Pleopeltis longissima Moore). 



Terrestrial fern, spread throughout the moister regions of 

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

 of 900 m. It grows on water-sides, in hedges, in grassy 

 wilds and jungles, in bamboo-plantations. 



Habitat not mentioned. 



Lycopodiaceae. 



5. Lycopodium cernuum L. See p. 113, No. 29. 



This species like L. squarrosum Forst. \s for the sixth trip 

 (April 1919} given in Appendix I to the Dutch text but omitted 

 in Appendix I to the English text, giving all plants found 

 on Krakatao. 



Habitat not mentioned. 



Orchidaceae. 



6. Arundirid spec/osa El. See p. 107 and 5 and 16. 



In 5 herebefore Mr. Docters van Leeuwen mentions 

 that this species, ,,abundant at the time of former explorations 

 ,,had (in April 1919) been ousted by the spreading forest". 

 Nevertheless it is recorded in Appendix I as found in April 1919. 



Habitat not mentioned. 



