326 Massee and Salmon . — Researches on 
670 diam., are seen to be distinctly rough with minute scattered 
points* 
The two examples recorded above differ slightly from one another. 
In the specimens on Rabbit-dung the appendages are slightly 
narrower, and the spores smaller, measuring (seen from the front) 
2-5-3 /u, i n diam. ; in the specimens on the dung of Patagonian Cavy 
the appendages are a little stouter, and the spores larger, although 
somewhat variable in size, measuring 3-4 \x. In both examples the 
spores are minutely asperous, and the plants indistinguishable in 
general habit. 
Aseobolaceae. Thelebolus stercoreus, Zukal (Figs. 41-44, 66). 
T. stercoreus , Zukal, in Denkschr. d. Math.-Nat. Klasse, Kais. Acad, 
d. Wissensch. Wien, li, Abth. 2, 21, Taf. I (1886); Heimerl, in 15. 
Jahresber. d. k. k. Ober-Realsch., Bezirk Sechsh., Wien, 28 (1889) ; 
Brefeld, Unters. a, d. Gesammtgeb. d. Myk., ix, 1 13, Taf. Ill, A (1891); 
Sacc. Syll. Fung, x, 34 (1892) ; Schroet. in Cohn’s Krypt.-Fl. Schles., iii, 
pt, 1, 51 (1893); Rehm in Rabenh. Krypt.-Fl. Deutschl., Bd. 1, Abth. 
3, 1106 (1896). 
Ryparobius monoascus , Mouton, in Bull. Soc. Roy. Bot. Belg., xxv, 
pt. 1, 141 (1886); Sacc. Syll. Fung, viii, 545 (1889). 
Thelebolus nanus , Heimerl, 1. c., 30, Taf. I, f. 2 (1889); Sacc. Syll. 
Fung, x, 34 (1892); Rehm, 1 . c., 1107 (1896). 
Apothecia scattered or subgregarious, very variable in size, 135- 
240 in diam., at first closed, globose to ovoid, pallid, becoming dull 
brownish, glabrous, semi-immersed, wall parenchymatous, very 
delicate and thin, composed of irregularly shaped polygonal cells 
6-14 fx wide, apothecia at length ruptured at the apex by the protrud- 
ing ascus ; ascus solitary, or 2-3, rarely as many as 5, ovate-oblong 
to broadly ovate, variable in size, 120-230 x 80-170 ju, polysporous; 
spores 5-7 x 3-3*5, oblong, rounded at each end, hyaline, smooth, 
ejected in a mucilaginous mass to some distance, paraphyses very 
delicate, hyaline, filiform, sometimes branched, closely surrounding 
the ascus, soon disappearing. 
Hab . — Abundant on Rabbit-dung, Kew and Reigate, England, Nov. 
1900 and Mar. 1901 ; on Horse-dung, Kew, Nov. 1900. 
(Tistrib . — Austria and Belgium ; on dung of Hare, Rabbit, Goat, 
Roe- and Red-Deer.) 
The question of the affinity of this interesting Fungus has already 
