444 Rev. M. J. Berkeley and Mr. C. E. Broome on British Fungi. 



^Eginidce is to be found in the position and structure of organs 

 of sense (marginal vesicles), which are certainly very different 

 in the two families (and also as regards their intimate structure). 

 In the JEginidce the sensory vesicles are situated freely on the 

 outer margin of the umbrella, and are elevated upon short 

 peduncles. In the Geryonida, on the contrary, they are enclosed 

 in the gelatinous mass which forms the lowest margin of the 

 mantle, and each vesicle is seated here upon a ganglion-like en- 

 largement of the nervous ring. Perhaps the demonstration of 

 this close anatomical affinity of the Geryonidce and JEginida may 

 serve, at least in one respect, to make the genetic connexion of 

 the two families above described appear less enigmatical. 



Finally, I may remark that I had the pleasure of bringing the 

 above-described remarkable phenomena under the immediate 

 notice of one of the first authorities upon Medusae, my friend 

 Professor Gegenbaur, and that he was convinced of the correct- 

 ness of my observations and the justness of the conclusions 

 founded upon them. 



XLVII. — Notices of British Fungi. By the Rev.M. J.Berkeley, 

 M.A., F.L.S., and C. E. Broome, Esq. 



[Continued from p. 404.] 



[Plates XV., XVI., XVII.] 



1063. Peziza (Geopyxis) carbonaria, Alb. & Schw. p. 314. 

 On burnt ground. Ascot, C. E. Broome, 1863. 



A charming addition to our list. 



Plate XV. fig. 15. a. ascus with paraphysis, magnified; 6. sporidia, 

 more highly magnified. 



1064. P. (Humaria) Wrightii, Berk. & Curt. Cupulis hemi- 

 sphsericis, demum planis, coccineis, extus furfuraceo-granulatis ; 

 sporidiis globosis, 1. subglobosis, junioribus lsevibus, adultis 

 echinulatis. 



On trunks of trees covered with Hypnum serpens. Bodelwyd- 

 dan, Flintshire, March 1864. 



Sporidia -00045-'0006 inch in diameter; paraphyses slender, 

 branched. 



The Texas plant is just the same, and agrees exactly in 

 habit. 



Plate XV. fig. 16. a. asci, magnified; b. paraphysis; c. sporidia, more 

 highly magnified. 



1065. P. (Sarcoscyphae) theleholoides, A. &. S. p. 321, t. 12. 

 On spent Hops. Batheaston, Ilford, Essex, C. E. Broome and 



W. W. Saunders. 



