290 



Mycologia 



sis. They observed, however, that the spores at maturity turn to 

 a light brown color, which suggested to them the genus Auers- 

 waldia. Finally Seaver determined the specimens collected by 

 Whetzel and Olive as Auerswaldia Miconiae and the writer (6) 

 published them under that name (fig, 19). 



The fungus falls under Dothidina in the treatment of Theissen 

 and Sydow on account of the presence of paraphyses. The spores 

 measure 14-18 x 6-7 fi. 



Material examined: 



On Heterotrichum cymosum (Wendl.) Urban. Herbarium 

 University of Illinois, Porto Rican Fungi (Stevens), No. 5206, 

 San Sebastian, Nov. 13, 1913; Cornell University Explorations of 

 Porto Rico (Whetzel & Olive), No. 643, El Yunque, Apr. 12, 

 1916. 



On Miconia laevigata (L.) DC. Herbarium University of Illi- 

 nois, Porto Rican Fungi (Stevens), No. 435, El Gigante, Dec. 15, 



I9I3- 



On Miconia prasina (Sw.) DC. Herbarium Insular Experi- 

 ment Station (Stevenson), No. 5362, Espinosa, Mar. 27, 1917. 



On Miconia Sintenisii Cogn, Herbarium University of Illinois, 

 Porto Rican Fungi (Stevens), No. 6656, Santa Ana, Dec. 31, 191 3. 



On Miconia sp. Herbarium Insular Experiment Station (Ste- 

 venson), No. 742, Maricao, Mar. 14, 1913; Cornell University 

 Explorations of Porto Rico (Whetzel & Olive), Nos. 696, 697, 

 Maricao, Mar. 22 and 15, 1916, respectively. 



On Tetrazygia clacagnoides (Sw.) DC. Cornell University 

 Explorations of Porto Rico (Whetzel & Olive), No. 636, Barcelo- 

 neta, Apr. 8, 1916. 



Phyllachoraceae 



Trabutia Bucidae sp. nov. 



Spots not exceeding the stromata; stromata numerous, hypo- 

 phyllous, crowded in irregular areas 5-10 mm. in diam., individual 

 stromata black, shining, approximately circular, often confluent, 

 .5-1.5 mm. in diam., subcuticular; locules globose to oblong, 200- 

 300 x 150-200 ^ covered by a well-developed stroma which often 



