296 



Mycologia 



Material examined: 



On dead wood. Herbarium Insular Experiment Station (Ste- 

 venson), No. 2989, Palo Seco, Apr. 24, 1915; Cornell University 

 Explorations of Porto Rico (Whetzel & Olive), No. 764, Maricao, 

 Mar. 13, 1916; id. id. (Chardon), Nos. 953, 963, Coamo, Aug. 23, 

 1920; id. id. (Chardon), No. 961, Coamo, Aug. 26, 1920. 



Nummularia cincta Ferd. & Wge., Bot. Tidsk. 29: 15. 1909. 



This form might be confused easily with N. Bulliardi in that the 

 stroma is erumpent and pushes the bark to the sides. It differs 

 in that the stroma lacks marked punctulations and is not so char- 

 acteristically convex (fig. 17). 



Material examined : 



On dead and decaying wood. Herbarium Insular Experiment 

 Station (Stevenson), No. 3464, Rio Piedras, Dec. 12, 1913; id. id. 

 (Johnston & Stevenson), No. 1253, Martin Pena, Jan. 25, 1914; 

 Porto Rican Fungi (Fink), No. 691, Rio Grande, Dec. 7, 1915; 

 Cornell University Explorations of Porto Rico (Chardon), No. 

 977, Penuelas, July 21, 1920. 



The material examined was compared with a fragment of the 

 type kindly supplied by Doctor Ferdinandsen. 



Nummularia punctulata (B. & R.) Sacc, Syll. Fung. 1 : 399. 

 1882. 



This is a very common and characteristic species on account of 

 its smooth and polished stromata. The stroma is broadly effused, 

 3-10 cm. or more in length and projects but slightly above the 

 bark. Most of the collections are sterile (fig. 16). 



Material examined: 



On dead wood. New York Botanical Garden, Explorations of 

 Porto Rico (Schafer), No. 3687, Sierra de Naguabo, Aug. 10-15, 

 1914; Herbarium University of Illinois, Porto Rioan Fungi 

 (Stevens), No. 112, Dos Bocas, July 8, 1915; Porto Rican Fungi 

 (Fink), No. 974, Mayaguez, Dec. 18, 1915; id. id. (Fink), No. 

 1785, Aibonito, Jan. 3, 1915; Cornell University Explorations of 



