COFERVA PROTENSA. 



C. filamentis ramofiffimis, ramis diiTufis, maxime clongatis, apicibus 

 pellucidis articulis longiufculis. 



In Rivulets and Springs growing on Stones, Wood, Reeds, and other aquatic 

 vegetables ; frequent about Swanfea. 



THE prefent fpecies, though hitherto it has remained unnoticed, occurs in 

 nearly every brook and rivulet about Swanfea, growing on ftones, fticks, grafTes, 

 reeds, and other aquatic plants : I have alfo met with it about Dover, and have 

 no doubt it is by no means unfrequent in fuch fituations. The color is a light 

 green ; the filaments vary from two lines to half, and fometimes to three fourths 

 of an inch in length, and are much branched. The branches are numerous, dif- 

 fufe, and towards the apices fo lengthened out and pellucid that the termination 

 of them is not eafily difcovered. The joints are of uncertain length, and are 

 fhorteft in the ftem and longeft in the pellucid ends of the branches ; with age 

 they not unfrequently become inflated, and the juices in drying often collapfe fo 

 as to form two opake longitudinal lines parallel to each other, and leaving the 

 remainder of the joints pellucid. The fru&ification has not been difcovered. 



The Plant in drying adheres to either glafs or paper. 



A. C. protenfa, natural fize. 



B. Ditto, magnified 3. 



C. Ditto, ditto 1. 



