119 



60. Blumea balsamifera D. C. See p. 51. 



P e n z i g found several species of more than 1 m. height 

 of this undershrub (which reaches in Java a height of 4 m.) 

 in the higher localities reached, For the rest he gives no 

 details about habitat' and frequency. 



61. Pluchea indica Less. See pp. 50 and 108. 



Possibly this shrub was another of the forms allied to 

 B/umea balsamifera which P e n z i g found in the higher 

 localities. I think it, however, more probable, that he found 

 it in the older parts of the beach at the base of the 

 rupture, where it was also found in 1906. Penzig says 

 nothing about its habitat and frequency. 



62. Senecio sonchifolius Moench (Emilia sonchifolia Moench). 



See p. 52. 



Habitat and frequency unknown. 



63. Wedelia biflora D. C. (In P e n z i g s paper named Wedelia 



asperrima Boerl., W. scabriuscula Boerl. and Wollastonia 

 spec.). See p. 49 under Wollastonia. 



Penzig says nothing about habitat and frequency of 

 this species. 



This list contains 16 lower Cryptogams, 13 vascular Cryptogams 

 and 34 Phanerogams, in total 63 species. 1 r e u b's list gives 8 lower 

 Cryptogams, I 1 vascular Cryptogams and 15 Phanerogams, in total 

 34 species. Penzig, for reasons unknown to me not computing the 

 lower Cryptogams, comes for the three islands of the Krakatao-group 

 together to a total of 62 species (50 Phanerogams and 12 vascular 

 Cryptogams) whilst Treub in 1886 found only 15 Phanerogams and 

 11 vascular Cryptogams. Penzig asserts not to have found back 

 seven of Treub's species, viz. three Phanerogams (Hernandia sonora, 

 Wollastonia sp. and Tournefortia argenteo) and four ferns {Nephrodium 

 calcardtum Hook,,-' Nephrodium flaccidum Hook., Pteris marginata 

 Bory and Onychium auratum Kaulf.). But he thinks it possible that 

 these species were overlooked. Assuming that they still occurred in 

 1897 Penzig arrives for the 3 islands at a total of 53 Phanerogams 

 and 16 ferns. The 26 ,,littoral species" whose seeds or fruits he 

 found washed ashore (Cf. pp. 96, 97) he leaves out of account, 

 ,,as it is not quite certain though highly probable that they will 

 ,,come to development on the Krakatao-group". 



This resume should be corrected in this manner, that the Wollas- 



