Patella 165 



lU. Patella ricciophila Seaver, sp. nov. (Plate 45, fig. 15, 16.) 



Apothecia gregarious or scattered, at first globose, becoming 

 expanded and subdiscoid, reaching a diameter of 1.5 mm., pale- 

 orange, surrounded by a pale-orange or whitish border, and 

 rather densely clothed with white hairs; hymenium plane, slightly 

 concave, or convex, a little brighter in color than the outside of 

 the apothecium, becoming roughened or pitted; hairs perfectly 

 hyaline, thick-walled, tapering into an acute apex, reaching a 

 length of 150-200 m and a diameter of 16-18 ^t; asci cylindric or 

 subcylindric, with a short stem-like base, reaching a length of 

 180-200 /x and a diameter of 20 /x, 8-spored; spores 1-seriate or 

 rarely crowded, decidedly ovoid, the small end directed either 

 upward or downward, usually containing one large oil-drop, 

 hyaline, smooth, about 18 X 24-26 /x; paraphyses stout, slightly 

 enlarged above, reaching a diameter of 5-6 /x, filled with orange 

 granules. 



Closely associated with and apparently growing on the living 

 thallus of Riccia nigrella brought from Texas and grown in the 

 propagating house of The New York Botanical Garden, December 

 6, 1915. 



Distribution : Known only from the type collection. 



11. Patella punicea (Clem.) Seaver, comb. nov. 



Sepiiltarla punicea Clements, Bot. Surv. Nebr. 4: 14. 1896. 

 Lachnea punicea Sacc. & Sydow in Sacc. Syll. Fung. 14: 759. 1S99. 



Apothecia subgregarious, superficial or nearly so, at first 

 subglobose, expanding and becoming scutellate to discoid, reach- 

 ing a diameter of 2 mm., externally densely clothed with hairs; 

 hymenium bright-red, concave; hairs brown, septate, sharp- 

 pointed, reaching a length of 300-400 ^i and a diameter of 16-20 /x; 

 asci cylindric or subcylindric, reaching a length of 225-230 /x and 

 a diameter of 10-14 fx; spores 1-seriate, ellipsoid, smooth, hyaline, 

 7-9 X 10-12 /x; paraphyses filiform, clavate, densely filled with 

 orange granules. 



On wet, decaying wood. 



Type locality: Bluffs of the Missouri River, Otoe County, 

 Nebraska. 



Distribution : Known only from the type locality. 



