532 



Annals of the South African Museum. 



Lat. cell. fil. repent,, 5-7 fi; long., 7-10 /a; altit., 5 12 ,x ; 1 at. cell, 

 fil. adscend., 5-8 //.. Long, tot, ramul. adscend., ca. 30 /x. ; long. pil. 

 adscend., plus quam 400 fi. 



■p 1Qm i7. — Stigeoclonium prostratum, n. sp. 4. Small part of the attached 

 base, showing the rare development of a pseudo-parenchymatous 

 structure and a short hair. B. Part of the prostrate thallus, showing 

 the characteristic method of branching and a number of hairs. D. 

 Section through the creeping base and a small part of the substratum ; 

 a number of hairs are also shown. C. Small part of the creeping base, 

 showing the" development of numerous short ascending branches. B and 

 C are from different parts of the same specimen. All figures x 750. 



Samples 29, 30a (in both cases on MyriopJiyllum) . 

 The identity of the more markedly epiphytic species of Stigeo- 

 cloniwm (Myxonema) is by no means easy to establish, owing- to the 



