204 BritisJi Fungi, 



Tlie species, twelve iu uumber^ liave a wide 

 distribution, aud are parasitic on fungi belonging to 

 tlie Uredinea. The general habit is that of a 

 Tuhercidaria, near to which forin-genus it has been 

 arranged by Saccardo. C Gobi, on the other hand, 

 considers the genus as having more affinity with the 

 Jjstilaginece.^ 



TuhercuUna persicina, Sacc. (figs. 132). 



Sporodochium globuloso-depressed, minute, often 

 arranged concentrically, violet-brown, paler inside ; 

 gonidia subglobose, 7-8 ^t rarely 10 yu, diameter,, 

 rosy-violet, smooth ; gonidiophores simple or with a 

 few scattered branchlets, aseptate, denticulate at 

 apices, subhyaline. 



TuhercuUna persicina, Saccardo, Fung. Ital. t. 

 964; Sacc. Syll. vol. iv. n. 3088; Plow. Brit. Ured. 

 and Ustilag. p. 299 (exclusive syn. Tuherculina vinosa, 

 Sacc). 



TiiJiercidaria persicina, Ditm. in Sturm, t. 49. 



Parasitic on TJredo, ^cidiurii, and Boestclia stages 

 and various JJredines. Xot common. 



Tuherculina vinosa, Sacc. 



Closely allied to Tuherculina persicina, Sacc, from 

 which it differs in the larger pustules of a vinous 

 colour; gonidia subglobose or ovoid, 11-12 x 10 yu, 

 (not 7-8 /x diam.), gonidiophores shorter, thicker, 

 septate, simple. 



Tuherculina vinosa, Sacc. Michelia, i. p. 262, and 



^ Acad. Imp. des Scienc. de St. Petersbourg, ser. vii., vol. xxxi. 

 (1884). 



