EXPLANATION OF PLATE XXIII. 



Pala'opede ivhiteleggei, Eth. fil. 



Fig. 1. Trichome (?) of moniliform cells, and heterocysts (?) 5 mm 

 long. 



„ 2. Four heterocysts (?) at the end of a non-segmented tube filled 

 with similar black pulverulent matter to themselves. 

 •1 mm. long, diameter '02. 



„ 3. Five moniliform cells and a heterocyst (?) terminating in a clear 

 tube. -07 mm. long. 



„ 4. Moniliform cells enclosed in a sheath or vagina. -08 mm. long. 



Palceachlya torquis, Eth. fil. 

 „ 5. Tubes filled with yellow granular matter. -01 mm. in diameter. 



[From drawings by Mr. Edgar E. Waite, Australian Museum]. 



