RYPAROBIUS. 301 
Club,” 1878, p. 180, t. 3, f. 6-10; and “Jour. Bot.,” 1874, 
p. 356, t. 154, f 6-10. 
On rabbit-dung. Autumn. 
Cups zhq, rarely y},, of an inch broad, formed of a 
single layer of subeubical cells, with a single row of 
sharp, pointed hairs, often roughened on their sides about 
4 to % of the whole height; disc plane, granulate; asci 
narrower than usual; sporidia normally 32, oblongo-fusi- 
form. To be distinguished from A. cwnicularis by the 
shorter and tapering rough cilia, as well as by the thinness 
and transparency of the walls (Renny). 
Name—After M.M. Crouan fréres. 
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 7-6u; para- 
physes filiform, furcate, tips slightly enlarged. 
Ryparobius argenteus—B. and Br. in “Ann. Nat. 
Hist.,’ No. 1894; “Grevillea,” ii. 168. Ascozonus cuni- 
cularius—Renny, “Trans. Woolhope Club,” 18738, p. 129, 
t. i, £. 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 100y 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 
