RYPAROBIUS. 301 



Club," 1873, p. 130, t. 3, f. 6-10; and "Jour. Bot.," 1874, 

 p. 356, t. 154, f. 6-10. 



On rabbit-dung. Autumn. 



Cups T5U> rare ty TO~O> f an i nc h broad, formed of a 

 single layer of subcubical cells, with a single row of 

 sharp, pointed hairs, often roughened on their sides about 

 J to of the whole height ; disc plane, granulate ; asci 

 narrower than usual ; sporidia normally 32, oblongo-fusi- 

 form. To be distinguished from A. cunicularis by the 

 shorter and tapering rough cilia, as well as by the thinness 

 and transparency of the walls (Renny). 



Name After M.M. Crouan fre'res. 



Hereford (Mr. James Renny). 



4. Ryparobius argenteus. B. and Br. 



Very minute, at first globose, then applanate, silvery- 

 white, ciliated with soft hairs ; asci short, broad, spo- 

 ridiferous ; cysts elliptic, seated towards the apex ; 

 sporidia 64, fusiform, hyaline, smooth, 17 X 7'6/m', para- 

 physes filiform, furcate, tips slightly enlarged. 



Rypa/robius argenteus B. and Br. in "Ann. Nat. 

 Hist.," No. 1394; " Grevillea," ii. 163. Ascozonus cuni- 

 cularius Renny, "Trans. Woolhope Club," 1873, p. 129, 

 t. i, f. 1-4; and "Jour. Bot.," 1874, p. 355, t. 155, f. 1-4. 



On rabbit-dung, for the most part attached to fila- 

 ments of Mucor. 



Cups WOjui across, scarcely visible to the naked eye ; 

 asci opening with a little lid, which splits vertically. 

 Comes near to R. felinus (Boud.), but has soft hairs, and 

 is of a pure white (B. and Br.). But for the colourless 

 sporidia, this, as well as Nos. 6 and 7, should belong to 

 Saccobolus, on account of the " sporidiferous cysts." 



Name Argentum, silver, having a silvery appear- 

 ance. 



Near Hereford (Mr. Renny). 



5. Ryparobius Leveilleanus. (Renny.) 



Very minute, shortly stipitate, silvery white ; stem 

 formed of rounded, prominent cells ; body of cup of 



