Classification . 187 



Syll. vii. ii. n. 1895 ; Plow. Brit. Ured. and Ustilag. 

 p. 286; Cke. Hdbk. p. 617 j Micr. Fung. ed. 4, 

 p. 232. 



On ColcJdcum autumnale, Scilla hifolia, Paris 

 quadrifolia. Not uncommon. 



TJrocystis sorosporioideSj Korn. 



Sori black, forming very convex pustules on the 

 leaves, for some time covered with, the greyish-white 

 epidermis which at length ruptures and the mass 

 becomes pulverulent ; spore-clusters subglobose or 

 oblong, compact, subopaque, variable in size, 22- 

 48 X 15-21 yLt ; central fertile spores 4 — 6, rarely 

 more, globose or hemispherical, smooth, subopaque, 

 brown, 11-17 /^ diameter; peripheral sterile cells 

 numerous, in a single layer, rather lax, globose 

 or hemispherico-flattened, 7-12 [i diameter, pale 

 yellow-brown. 



TJrocystis sorosporioideSj Korn. in Fckl. Symb. 

 Myc. iii. p. 10; Sacc. Syll. vii. n. 1904; Plow. 

 Brit. Ured. and Ustilag. p. 287; Cke. Micr. Fung, 

 ed. 4, p. 232. 



On leaves, petioles, and stems of TJialictrum minus. 

 Rare. 



Fungus often occupying surface of the leaves, 

 forming small, very convex pustules ; on the stem 

 and petioles the pustules become elongated. 



Urocystis gladioli, W. G. Smith. 

 Sori pustulate, black, rotund, scattered or approxi- 

 mated, covered at first with the inflated epidermis 

 and surrounded by a yellow ring; spore-clusters 



