140 



some specimens bore exclusively monosporangia ; the telrasporangia occurred only 

 in small quantity. 



As in the main species short descending filaments occurred at the base of the 



Fig. 66. 



C.hanlraiisid peitinala ij. ciinbrica. A, lower jiai l ol oriof liUinn-nt. B, upper part of the same witli sporaiif^ia; 

 one ol these sliowing a transverse wall. C, l)raiiehe(l lilanient with telrasporangia. I), filament with hrancli- 

 lets l)earing miinosporanjiia. !£—(!. eells sliowing; the cliromalophnres. .1, B 260;l. C, D l!l():l. E—G 5.50:1. 



erect filaments (fig. 66 A). The bi'anches taper upwards, at last 5,5 /i thick. There 

 is more than one chromatophore, parietal, long and narrow, sometimes spiral- 

 shaped but more frequently rather irregular. 



