78 



Dansk Botanisk Arkiv, Bd. 3. Nr. 1. 



is the calcification nearly wanting. The surface is glabrous, in 



dried specimens uneven or dotted. 



The fascicles 

 of assimilating fila- 

 ments (Fig. 83 a, 

 6, c) are propor- 

 tionally large and 

 richly ramified. The 

 lowermost cells in 

 each fascicle are 

 large, somewhat 

 swollen upwards, 

 but very variable 

 in size, their dia- 

 meter often reach- 

 ing a length of 40// 

 or more. 



From these ba- 

 sal cells 2 — 3 

 or more filaments 

 grow upwards ; 

 these are several 

 times di- or tricho- 

 tomously divided. 

 The lowermost cells 

 in these filaments 

 are subcylindrical 

 or nearly so ; after 

 each division the 

 cells grow thinner 

 and also shorter 

 until about the 

 middle of the whole 

 branch system 



where the cells on 

 an average are only 

 10—15 It thick. 

 From here the 

 cells again get 

 thicker and at the same time also shorter, nearly oval, the ends 

 of the assimilating filaments in this way getting a monihform 

 appearance. The cells in the upper part of the assimilating fila- 



Fig. 83. Liagora megagyna nov. spec, a, &, c, d, 

 assimilating filaments with carpogonial branches and 

 hair-like filaments, e, ends of assimilating filaments 

 with remnants of died cells, f, g, end of assimilating 

 filaments with short hairs, (a, b, d, about 60: 1, 

 c, e, f, g, about IBO : 1.) 



