232 MICROSCOPIC FUNGI. 



mass of spores clear yellow-brown ; clusters globose or ovoid, 

 composed of from 2 to 8 spores ; spores globose, flattened at the 

 united surfaces, yellow-brown; epispore spinulose. — OnCalystegia 

 Sohlanella, C. sepium, and other species. 



Urocystis, Rabh. 



Masses of spores containing coloured spores in the centre, 

 surrounded by hyaline spores in the periphery ; epispore 

 smooth. 



Urocystis Colehici, Tul. Meadow-saffron Smut ; sqri 

 elongated, bursting irregularly ; spores smooth or slightly papil- 

 lose. — On leaves of Meadow Saffron. Not common. 



Urocystis pompholygod.es. Lev. Buttercup Smut 

 sori varied in form, bullate;*epidermis inflated, at first entire, then 

 bursting irregularly, its remains surrounding the clusters ; spores 

 copious, subglobose, black, opaque or pellucid. — On Ranunculus 

 repens and other Ranunculacea. Summer. Very common. (Plate 

 IX. figs. 183, 184..) 



Urocystis parallela, B. and Br. Rye Smut ; sori very 

 Ion?, linear ; epidermis bursting longitudinally ; spores globose, 

 with several projecting nodules, dark brown.— On culms and 

 sheaths of Rye and on the leaves of Cariccs. (Plate IX. figs. 

 187, 188.) 



Urocystis Viol93, B. and Br. Violet Smut ; sori scat- 

 tered, elongated, on both surfaces of the leaves and petioles ; 

 spores more or less globose, consisting of several cells surrounded 

 by a common irregular crust.— On leaves and petioles of Violets. 

 August. Common. (Plate IX. tigs. 185, 186.) 



Urocystis sorosporioides, Kcern. Meadow-rue Smut ; 

 mass of spores black, in the form of pustules; glomerules rounded, 

 oblong oval, obtuse-ovoid, composed of 8 or more central spores, 

 dark-yellow, almost opaque ; cells of the periphery numerous, 

 large, clear olive-brown.— On leaves of Thalictrum mi?ius. 



Urocystis Gladioli, Sm. Gladiolus Smut ; sori obli- 

 terated, or effused; glomerules large, rounded, consisting of 3 

 to 6 inner brown cells, and a larger indefinite number of nearly 

 transparent outer cells ; both series fertile.— Within corms of 

 Gladiolus. 



