87 



back half a year afterwards by P e n z i g and his companions who 

 collected only on the beach. Of course these species were not 

 recorded by Penzig in his list of plants found on Lang Eiland. 



The collection made by Nolthenius is not very extensive 

 and does not contain any oecological data. Hence it is practically 

 valueless for the study of the development of the new flora. 



The collections made in 1896 by Boer I age and Nolthenius 

 on Lang Eiland, though preserved for upwards of 30 years in the 

 Buitenzorg Herbarium and mentioned by T r e u b in the above-cited 

 Annual Report, were never recorded in the lists of plants of the 

 Krakatao-group published by subsequent authors. For the reasons 

 set forth on p. 35 I refrain from further discussion of these collec- 

 tions and confine myself to stating that among at least 132 specimens 

 collected by B o e r I a g e there are to my present knowledge only 

 4 species of ferns (See p. 33, footnote 1). All of these are krem- 

 nophytes, very common in Java. 



