292 British Urediitecs and Ustilagine^. 



Synonyms. 



Schrot, loc. cit, p. 284. 



Protomyces microsporus. Ung., " Exanth. Plant.," p. 343- 

 Entylotna ungeriaum, De Bary. Cooke, " Micro. Fungi," 4* 

 edit., p. 233. Trail, Scott. Nat., 1884, p. 288. 



On Ranunculus repens and acris. 

 June to November. 



Biology.— The promycelial spores are cylindrico-fusiform, and 

 conjugate in pairs. 



Entyloma calendulse. (Oud.) 

 Spots round, at first whitish, then becoming brown. Teleuto- 

 spores globose or polygonal, smooth, nearly colourless or pale 

 yellowish brown, io-i6/x in diameter. 



Synonyms. 



Schrot, loc. cit., p. 283. 



Protomyces calendulce. Oud., " Flor. Myc. Neerland," vol. ii. 



p. 42. 



Protomyces hieracii. Berk, in Herb., No. 5248. Cooke, 



" Grevillea," vol. xii. p. 99. 



Entyloma calendulcB. Trail, Scott. Nat., January, 1884, p. 124. 



On Calendula officinalis, Hieracium vulgatum, murorum. 

 June to September. 



MELANOT.ffiNITJM. De Bary. 



Spores simple, in indeterminate groups, produced withm the 

 hyphse, not pulverulent, germination as in Entyloma. 



Melanotsenium endogenum. De Bary. 



Mycelium intercellular, permeating the whole plant, sending tufted 

 haustoria into the adjacent cells. Teleutospores forming 

 black masses under the cuticle, rounded, elliptical, or poly- 

 gonal from mutual pressure, dark brown, smooth, 15-20 x 

 i2-20;a. Epispore thick, opaque, dark brown. Endospore 

 thin, colourless. 



