94 The North American . Cup-Fungi 



2. Saccobolus portoricensis Seaver, sp. nov. 



Apothecia gregarious or scattered, superficial, at first perfectly 

 globose, becoming short-cylindric, finally discoid, smooth, pale- 

 amber, reaching a diameter of 1 mm. ; hymenium plane, becoming 

 convex, at first similar in color to the outside of the apothecium, 

 dotted over with the protruding asci, finally almost entirely 

 black; hypothecium composed of rather loosely united roundish 

 or angular cells; excipulum poorly developed, consisting of a 

 palisade of mycelium; asci clavate, tapering below into a rather 

 long slender base, reaching a length of 170-200 [i and a diameter 

 of 35-40 /x» 8-spored; spore-mass at first elongated, finally sub- 

 globose, closely compact and opaque or nearly so, surrounded by 

 a mass of purple granules, reaching a length of 40 ju and a diameter 

 of 27-30 m; spores at first subfusoid, finally subglobose, at first 

 hyaline, then purple, finally pale-brown, becoming sculptured, 

 about 17X20/X; spore-sculpturing taking the form of very 

 delicate reticulations, scarcely roughening the surface of the 

 spore; paraphyses about 3 m thick, scarcely enlarged above, 

 filled with orange granules. 



Cultivated on cow dung. 



Type grown on dung sent from Porto Rico, autumn, 1915 

 (Herb. The New York Botanical Garden). 



Distribution: Known only from the type locality. 



Distinguished by its subglobose spores. 



3. Saccobolus violascens Boud. Ann. Sci. Nat. V. 10: 230. 



1869. 

 ? Saccobolus neglectus Boud. Ann. Sci. Nat. V. 10: 231. 1869. 



Apothecia scattered, superficial, pale-violaceous, with a whitish 

 mycelial growth about the base, not exceeding 1 mm. in diameter; 

 hymenium becoming strongly convex, roughened by the pro- 

 truding asci, at first similar in color to the outside of the apo- 

 thecium, finally almost black; excipulum poorly developed, con- 

 sisting of loosely interwoven hyphae which, with transmitted 

 light, appear very dilutely violaceous; asci very broad-clavate, 

 gradually tapering below into a stem-like base, reaching a length 

 of 175 M and a diameter of 30-35 /x, 8-spored; spore-mass densely 

 compact, elongated, reaching a length of 40-60 m and a diameter 

 of 20 m; spores elongated, slightly unequal-sided or almond- 

 shaped, at first hyaline or very dilutely violaceous. 



On dung of various kinds, especially on goat dung. 



