609 



On living foliage of Junij>erus Virginiana, South Carolina 

 (Ravenel). 



A very distinct and well marked species. The general appear- 

 ance is that of StigmateW Juniperi, (Desm.), but the microscopical 

 characters are very diiferent, as above noted. The last three species 

 differ in their thicker stroma, which approaches Dothidea. 



D. buUulata, (Berk.) 



Dothidea buUulata, Berk. Nares. Arct. Expd. II, 322. 



Disks small, buUate, marked by the punctifbrm ostiola, arising 

 from, a filamentose base. Sporidia uniseriate, uniseptate, slightly 

 attenuated at each end, 15 x 6-8 fx. 



On leaves, Disco Island. 



D. Artemisise, (Schw.) 



Spfuzria ArtemisiiE , Schw. Syn. N. Am. 1227. 



Small (4 mm.), ovate, subangular, subcupulate, mai-gined by the 

 lobes of the stellately-ruptured epidermis, erumpent, subconfluent, very 

 black, with the disk i-ugose. Ostiola umbilicate, not prominent, 

 numerous. Perithecia globose, minute, hollow, buried in the stroma 

 which is seated on the inner bark, nearly free, black and rugose on 

 both sides, not really confluent, but crowded. Sporidia (sec. Berk. 

 Grev. IV, p. 104) oblong, uniseptate, constricted at the septum, 25 // 

 long. 



On branches oi Artemisia, Bethlehem, Pa. (Schw.). 



DOTHIDEA, Fr. 



Obs. II, p. 347. 



Stroma erumpent, mostly pulvinate or tuberculifbrm, slightly 

 arched, flat or slightly concave above, black, wrinkled or punctate 

 from the ostiola. Perithecia (cells) sunk in the stroma. Sporidia sub- 

 elliptical or elongated, 2-celled, hyaline or colored. 



* Sporidia continuous, hyaline {Bdgnisiella), or colored {Auers- 



vjaldia). 



D. Ilicis, Cke. Texas Fungi, No. 143. 



" Gregarious, erumpent. Pustules elliptical, black, the cells be- 

 ing enclosed in the stroma. Asci clavate. Sporidia elliptical, some- 

 times slightly attenuated towards each end, simple, hyaline, 30 x 10 ^«." 



On bark of Ilex opaca, Texas (Ravenel). 



77 



