114 



later years on Krakatao many fit habitats; it has been collect- 

 ed there on almost every excursion. 



P e n z i g is silent on the habitat and frequency of this 

 species in 1897. 



Pandanaceae. 



30. Pandiintis tectorius Sol. (P. littoralis Jungh.,). See p. 43, No. 4. 



This species was numerous on the beach. Penzig found 

 its fruits in the drift-zone at Zwarte Hoek. In 1886 Treub 

 had found in this same drift-zone Pandanus-hmts, probably 

 belonging (partly at least) to the same species. 



Gramineae. 



31. Imperata cylindrical P. B. (I. arundinacea Cyr.). See p. 106. 



Of this plant Penzig only says that it \vas one of the 

 commonest grasses in the higher localities reached by the 

 excursionists. 



32. Siiccharum spontancum L. See p. 100. 



With Pennisetum (No. 35) and Neyraudia (No. 37) this 

 grass formed locally a dense vegetation on the hills and in 

 the valleys. Probably in that vegetation Saccharum greatly 

 predominated. 



33. Pogonatherum paniceum Hack. (P. crinitum Trin.). See p. 105. 



Penzig states that in the higher localities reached by 

 the excursionists this plant was one of the commonest 

 grasses. Nothing is said about its habitat. 



34. Ischaemum muticum L. See p. 89. 



In great numbers on the beach at Zwarte Hoek, 



35. Pennisetum macrostachyum Brongn. (Gymnothrix elegans Biise). 



See pp. 48 and 53. 



This grass is said to have formed, together with Saccharum 

 (No. 32) and Neyraudia (No. 37), a dense vegetation on 

 the hills and in the valleys. It is very improbable that 

 it was one of the chief components of this vegetation. 



36. Spinifex littoreus A/err. (Sp. squarrosus L.). See p. 89. 



In great numbers on the beach of Zwarte Hoek. 



37. Neyraudia madagascariensis Hook. fil. var. zollingeri Hook. fit. 



See P . 103. 



