132 



MKMOIKS OF THE NEW YORK BOTANICAL GARDEN 



PLATE 19 



Figure 42. Hassalia heterogenea 



Portion of a filament, showing single and gemi- 

 nate branching, the latter occurring very rarely x 250 



" 43. Hassalia discoidea 



Upper portion of a typical brandling filament x 250 



" 44. Hassalia scytonematoides 



I'pper portions of typical filaments in good vege- 

 tative condition x 250 



" 45. Hassalia rugulosa 



Upper portion of a typical filament with rongli- 

 ened slieath x 250 



