400 Rev. M. J. Berkeley on Exotic Fungi, 



BOVISTA. 



B, argentea, Berk. Oval, depressed ; inner peridium ex- 

 tremely thin, papyraceous, shining, silvery without ; within 

 as well as the minute sporidia and capillitium of a pale dingy 

 red-brown. Larger diam. 2f inches, smaller 2 J ; depth about 

 1 inch. Inner peridium resembling very thin paper which 

 has been washed with silver. The sporidia and flocci resem- 

 ble in colour coffee and cream. 



Madras. Dr. Wight. In the herbaria of Sir W. J. Hooker 

 and N. B. Ward, Esq. 



Lycogala. 



L, epidendrum, Fr. St. Vincents. Rev. L. Guilding. Both 

 the common state, and one with grey-green sporidia. 



DiACHEA. 



D. elegans, Fr. On the leaves of a Paulinia, Brazil. Mr. 

 Boog. 



Stemonitis. 



S. /usca, Roth. Tilostylus jungermannioides, Kl. Mss. in 

 Hook. Herb. 



Mauritius. Mr. Bojer. Carlton House. North America. 

 Mr. Drummond. 



Onygena. 



O. equina, Pers. On buffaloes' horns. North America. 

 Dr. Richardson. 



Testicularia. 



Pseudoperidia aggregate, forming a dense mass. Sporidia 

 more or less mixed with simple flocci. 



T, Cyperi, Kl. in Linn. vol. vii. p. 202. 



Parasitic on Cyperi, occupying the place of the seed, soli- 

 tary or two together, ovate or oblong, about the size of a large 

 pea or acorn. Outer coat white, papyraceo-corneous, brittle, 

 at length bursting at the apex, farinoso-floccose, filled with 

 naked black pseudoperidia resembling gunpowder. Sporidia 

 globose, accompanied by simple flocci. 



On Cyperi. North America. 



This extremely curious genus is considered by Klotzsch as 

 uniting the Angiogastri with the Trichospermi. I cannot con- 

 cur in this notion. I feel little doubt that its proper situation 



