li'-Z BRITISH SEA-WEEDS. [i\Iela?iospermea. 



Genus XVIII. TAONIA, /. A^ardL 



Generic Character. Roots coated with woolly fibres. Frond 

 flat, ribless, somewhat fan-shaped, irregularly cleft, highly reti- 

 culated, marked with concentric lines. Tructification, linear, 

 wavy, concentric, superficial sori, on both surfaces of the frond, 

 consisting of naked spores, destitute of filaments. — The name 

 is from the Greek word for a peacoc/c, 



1. Taonia ATOMAiiiA, Good. and JFoodw. 



llab. On rocks in the sea. Annual. Summer. Found 

 in England by Mrs. Griffiths^ Mrs. Fowler, Mr. AYigg, Mr. 

 Borrer, Mr. Dillwyn ; in Ireland by Miss Ball ; in Frith of 

 Forth by Dr. Greville : very rare. I have never seen a Scotch 

 specimen. There is a splendid figure of it forming Plate i. 

 of ' Phycologia Britannica.'' 



Genus XIX. STILOPHORA, /. AgardL 



Generic Character. Hoot, a small disc. Frond filiform, solid 

 or tubular, branched. Fructification, convex, wart-like sori 

 scattered over the surface, composed of obovate spores nestling 

 among moniliform, vertical filaments. — The name is from two 

 Greek words signifying a point, and to hear, in allusion to the 

 dot-like fructification. — Harvey. 



1. SxiLOPiioiiA iiiiizoDES, /. Afjardh. 



