THECAPHORA. 325 



Th. Westendorpii Fiscli. In Lolmm perenne in Belgium. 



Th. pimpinellae Juel. In fruits of Pimpinella Saxifragct, in Sweden. 



Th. aurantiaca Fingli. In leaves of Urtica dioica. 



Th. pallescens Fingli. In leaves of Fragaria collina. 



Sorosporium. 



Spore-formation takes place in a mass of twisted gelatinous 

 hyphae. Spores at first embedded in a gelatinous investment 

 and united into packets, but later becoming separate. Promy- 

 celiuni filiform and septate. 



Sorosporium saponariae Eud. This causes deformation of 

 fiowers of Diaiitlius deltuidcs, Saponaria officinalis, Silene inflata, 

 and S. velutina, Stcllaria Holosteum, Cerastium arvense, Lychnis 

 dioica, and Dianthus prolifcr. 



S. dianthi Eabh, on Dianthus prolifer, is probably identical with the 

 preceding species. 



We append here as doubtful Ustilagineae, the genera Grcqihiola 

 Schinzia {Entorrhiza), Tidierculina, and Schroetcria. 



Graphiola. 



The sporocarps of this genus are formed on the surface of 

 plant-organs containing mycelium ; they are little spherical 

 structures enclosed in a peridium, and contain filamentous 

 septate hyphae. The hyphae may be sterile or fertile ; the 

 spores are produced on lateral cells of the fertile hyphae. 

 From the germinating spores, either a thread-like mycelium or 

 spindle-shaped conidia arise. 



Graphiola phoenicis Pait.^ (Britain.) This fungus is a 

 parasite on leaves of palms {e.g. Phoenix dactylifcra and 

 Chamcrops humilis) in the open in Italy and other Mediter- 

 ranean countries, in hot-houses elsewhere. The sporocarps make 

 their appearance as little black protuberances on both sides of 

 the leaf. The mycelium forms a close hyphal tissue, which 

 encloses and kills parenchymatous cells, displaces the bundles 

 of sclerenchyma, and ruptures epidermis and hypoderm. De- 

 formation is, however, localized to these spots. 



' Ed. Fischer, " Beitrag z. Kenntniss d. Gattung Graphiola," Botan. Zdtiing, 

 1883. 



