fob] 
Fig. 7. 
223 
EXPLANATION OF THE PLATES. 
PLatE nH 
. Araucaria Beccarii with Pteridium aquifolium in foreground ; vicinity of 9 lake. 
- Rafts made of three palm-trunks tied together, used by the Alfueros on both the 
Angi lakes, 
PLATE 2. 
. Vegetation of marsh by 2 lake, looking S.W.; Koebré Mt. in the background. 
Baeckea frutescens <-. 
. Vegetation of forest by 2 lake, looking N.W.; Koebré in background. Myrmedoma 
arfakiana on extreme branches of tree <, with Phyllocladus hypophyllus and 
Libocedrus arfakensis —> . 
Puatz 3. 
. Araucaria Beccarti <—, with Podocarpus papuanus and Polyscias sp. in centre ; 
Pteridium aquilinum in foreground ; vegetation of forest by 2 lake. . 
. Vegetation of Koebré ridge, showing Myrmedoma arfakiana, 1°50 m. high, flower- 
ing <- , with tuber cut in longitudinal section ~. 
| Photographs are reproduced by kind permission of Mr, A. E. Pratt.] 
PLATE 4, 
Thysanosoria dimorphophyila Gepp. Apical portion of plant, 5 nat. size. 
