79 



Fig. 84. Liagora mega- 

 gyna nov. spec. 



Transverse section of 



medullary layer. 



(About 60:1). 



ments are about 19 20 p thick and 3035^ long. The whole 

 fascicle reaches a length of up to 500 600 //. 



Peculiar hairlike organs arise everywhere in the filaments 

 (comp. Fig. 83 a, c, d). These are short, con- 

 sisting of a single cell only, or longer, some- 

 times ramified, and composed of cylindrical 

 cells whose diameter is 5 8 ( . The upper- 

 most cells in these filaments are almost en- 

 tirely filled with protoplasm ; whatever the 

 reason may be the whole contents are often 

 evacuated from the cells and found mostly 

 as a spherical but sometimes also more irre- 

 gularly shaped body at the end of the fila- 

 ments (Fig. 83 c). Something quite similar 

 often takes place also in the cells at the summit of the assimi- 

 lating filaments; here also now and then the whole contents of 



the cells are emptied through 

 a hole in the top of the cell; 

 remnants of a membrane 

 originating from such emp- 

 tied cells are often found 

 in the end of the assimila- 

 ting filaments (Fig. 83 e). 

 Here also short hairs are 

 often found (Fig. 83 /, g), 

 reminding one of those which 



ROSENVINGE has found in 

 N emotion. They are entirely 

 filled with protoplasm ; when 

 they die remnants of the 

 walls remain at the end of 

 the cell. 



The central filaments 

 consist of long subcylindrical 

 barrelshaped cells, whose 

 diameter reaches a length 

 of 100 160^ or even more 

 (comp. fig. 83 a, b). Along 

 and between these thicker 

 filaments smaller ones run irregularly in the mucilage ; they ori- 

 ginate from the basal cell in the peripheral filaments and consist 

 of long cylindric cells about 150 // long and 11^ broad. Fig. 84 

 shows a transverse section of the medullary layer. 



Fig. 85. Liagora megagyna nov. spec. 



Development of the cystocarp (comp. 



the text), (a, b about 160 : 1, c about 



60:1). 



