96 The North American Cup-Fungi 



changes to smoky-blackish, becoming sculptured, 7 X 12-14 m; 

 spore-sculpturing consisting of minute scattered warts; pa- 

 raphyses branched, rather strongly enlarged above where they 

 reach a diameter of 7-8 ijl, hyaline. 



On horse dung. 



Type locality: New York City. 



Distribution: Known only from the type locality. 



The species, which was collected during the autumn of 1914, 

 seems to differ in several particulars from any of the other 

 species of the genus studied. The apothecia are white and very 

 small. The spore masses are nearly rounded and the spores 

 themselves more blue than purple and distinctly warted rather 

 than reticulated. The species has been encountered only once. 



Doubtful Species 



Saccoholus ohscurus (Cooke) Phill. Brit. Discom. 295. 1887; Ascobohis 

 obscurus Cooke, Grevillea 4: 112. 1876. Specimens were distributed under 

 this name in Clements, Crypt. Form. Colo. 301. No Saccoholus could be 

 found in our copy of this number. 



11. ALEURIA Fuckel, Symb. Myc. 325. 1869. 



Apothecia gregarious, scattered or cespitose, sessile or stipi- 

 tate, externally smooth or clothed with a delicate white to- 

 mentum ; hymenium concave or plane, even or lacunose, usually 

 bright-orange or red; asci cylindric or subcylindric, 8-spored; 

 spores ellipsoid, at first smooth, becoming sculptured; spore- 

 sculpturing assuming the form of reticulations, often also with 

 apiculi, rings, etc., at the ends of the spores; paraphyses slender, 

 usually strongly enlarged at their apices. 



Type species, Peziza aurantia Pers. 



Apothecia sessile or subsessile. 



Spores apiculate but not marked with a ring at the 

 ends. 

 Apothecia reaching a diameter of several cm.; 



spores 18-20 M long. 1. A. aurantia. 



Apothecia not exceeding a diameter of 2 cm.; 

 spores 9-15 m long. 

 Spores 7 X 14-15 m- 2. A. wisconsinensis. 



Spores 5 X 9-10 n. 3. A. cestrica. 



Spores marked with a ring at either end. 4. A. hiciiciillata. 



Apothecia strongly stipitate. 



Occurring in coniferous woods; stems springing from 



a dense mass of mycelium. 5. A. rhenana. 



Occurring usually singly among mosses in deciduous 



woods. 6. A. rutilans. 



