255 



Equisetaceae. 



28 (39) Equisetum debile Roxb. 



Horse-tail, spread throughout the moister regions of Java 

 between 300 and 2700 m. above sea-level, in sunny or 

 moderately shadowed humid or swampy localities, in pools 

 and dry river-beds but also on steep banks and in stony or 

 rather unfertile moist soils, often growing gregariously. The 

 reproduction is effected by ramification of the long creeping 

 rhizomes and by spores. 



Collected at an altitude of 700 m. The Dutch text adds: 

 ,,on a slope bearing but a scanty vegetation". The English 

 text omits this addition. 



Lycopodiaceae. 



29 (40). Lycopodium squarrosum Forst. 



Epiphytical or less often terrestrial very variable club- 

 moss, spread throughout the moister parts of Java between 

 400 and 1600 m- above sea-level, especially in well-shadowed 

 localities, in primary and secondary forests, rarely in stony 

 localites bearing but a scanty vegetation. The reproduction 

 is effected by spores. 



An epiphytic specimen was collected at an altitude of 500 m. 



Selaginellaceae. 



30 (41). Selaginella plana Hieron. See p. 190, No. 8. 



Collected at an altitude of 500 m- 



Zingiberaceae. 



31 (38). Costus sericeus Bl. See p. 190, No. 12. 



Collected from 50 to 200 m. above sea-level. ,,/Vo real 

 ,,forest plant" (D. v. L). The Dutch text says: ,,No real pri- 

 ,,meval-forest plant". 



Orchidaceae. 



32 (30). Habenaria sp. 



Several species of this terrestrial genus of orchids inhabit 

 the moister regions of Java from the lowlands to high in 

 the mountains. They grow either in forests or in grassy 

 plains. The reproduction is effected by seeds. 



