MYXiiMYfETES. 83 



pp. 44. Lepidoderma tigrinum. (Schr.) 



add as synonyms. 



Diderma citrinum, Berk. Eng. Fl., p. 310. 

 Didymium leoninnm, B. & Br., Cey. Fungi, 750. 

 pp. 49. Lamproderina physaroideum. (A & S.) 



instead of 

 Lamproderina physaroides, R. Mon., p. 202. 



pp. 50. Lamproderma violaceum. (Fr.) 



instead of 

 Lamproderma violacea, R. Mon., p. 204, pp. 60. 



ORDER VI. OOLUMELLIPER^B, 

 is substituted for "Reticulariae." 

 Preceding Eeticularia the following new genus is 

 added: 



Genus 31. SIPHOPTYCHIUJYI. E. 



Sessile, cylindrical sporangia ; columella central, cylindrical, giv- 

 ing origin to the (not numerous) radiating tubes of the capillitium, 

 which cross over to the wall of the sporangium. Rtfki. Mon. 

 Supp. 32. 



[No British species.] 



In the genus Arcyria, the following alteration in names has 

 been made, changes which should not have been made without the 

 strongest possible reasons, and yet no reason is apparent. 



pp. 69. Arcyria vernicosa. R. 



is substituted for 

 Arcyria punicea. Pers. 



pp. 71. Arcyria stricta. R. 



is substituted for 

 Arcyria cinerea. Bull. 



pp. 72. Arcyria adnata. (Batsch). 



is substituted for 

 Arcyria incarnata. Pers. 



pp. 73. Arcyria intricata. R. 



is substituted for 

 Arcyria ferruginea, Saut. 



As we cannot concede the necessity or justice of the four altera- 

 tions proposed in Arcyria, we have not altered the text, except to 

 add the new names as synonyms, and trust that the proposed 

 alterations will not be accepted. 



