3 22 



ADDENDA. 



Hiatula Hiatula holds as yet an uncertain position. From the colour 



of the spores, and the habit being that of Mycena, it might be 



referred to the Leucospori, but the 

 mode of growth is entirely that of 

 the Coprini. At present it is placed 

 next to Coprinus. 



Hiatula (hto, to gape. From the 

 manner in which the pileus splits 

 open). Mont. Ann. Sc. Nat. 1854. 

 Vol. i. p. 107. 



Pileus very thin, without a pellicle, 

 formed by the junction of the back 

 of the gills, when expanded veliform 

 and splitting open as in the most del- 

 icate Coprini, but not melting away, 

 One . and the sporidia are white. Fr. Nov. 

 Symb. Myc.p. u. 



CIII. Hiatula Wynniee. 

 half natural size. 



1. H. Wynnise B. & Br. Shining white. Pileus 4 cent. (i]4 

 in.) broad, tender, striate, pulverulent, centre darker. Stem 2.5 

 cent, (i in.) long, 2 mm. (i lin.) thick, slender, striate. Gills 

 scarious, rather broad. 



One specimen became darker in drying, and had a longer and 

 thicker stem. 



In a stove. Kew. 

 Name after Mrs Lloyd Wynne. B. & Br. n. 1772. 



