ASCOBOLUS 91 



reaching a length of 150-175 ju and a diameter of 15-18 n; spores 

 at first 1 -seriate, becoming 2-seriate or irregularly crowded in 

 the upper part of the ascus, at first hyaline, becoming purple, 

 then brown, ellipsoid, about 10-12 X 20 /x at maturity, becoming 

 sculptured; spore-sculpturing consisting of longitudinal anasto- 

 mosing ridges; paraphyses about 2 ^ in diameter, slightly enlarged 

 above. 



On decaying leaves. 



Type locality: London, Ontario, Canada. 



Distribution: Known only from the type locality. 



Doubtless on account of its greenish color this was mistaken 

 by Ellis for a Chlorosplemiim. Our studies show it to be a true 

 Ascoholus. 



Since this work was submitted to the press, the writer has 

 received and examined a specimen of this species collected on 

 old wet leaves at Manitoba Agricultural College, Winnipeg, 

 Canada, by Dr. G. R. Bisby, I. L. Conners, and W. L. Gordon, 

 No. 3647. So far as we are aware, this is only the second 

 collection of this species on record. The species is rather obscure 

 but is probably more common than would be indicated by the 

 above records. 



16. Ascobolus epimyces (Cooke) Seaver, comb. nov. 

 Chlorosplenium epimyces Cooke, Bull. Buffalo Acad. Sci. 2: 299. 1875. 



Apothecia gregarious, sessile, at first nearly globose, expanding 

 and becoming discoid or subdiscoid, scarcely exceeding 1 mm. 

 in diameter, greenish-yellow, then olivaceous, pulverulent, nearly 

 black in dried specimens; hymenium becoming plane, a little 

 lighter in color than the outside of the apothecium; asci clavate, 

 reaching a length of 120 /j. and a diameter of 12-15 fx, gradually 

 tapering below into a slender stem-like base; spores 2-seriate 

 above or irregularly crowded, 1-seriate below, fusoid, at first 

 hyaline (then purple?), finally brown, 8-9 X 10-18 fx, becoming 

 sculptured; spore-sculpturing consisting of delicate lines (ap- 

 parently ridges) which freely anastomose and give the spore a 

 decidedly striate appearance; paraphyses slender, slightly en- 

 larged above, filled with yellowish-green coloring matter. 



Originally reported on old Corticiiim, but apparently on the 

 remains of some slime mould. Except for habitat and a slight 

 difference in size and form of the spores, the species is similar to 

 Ascoholus viridiilus Phill. & Plow. 



