298 British Ui'edinecE and UstilaginecE. 



by transverse septa. Spores spherical or elliptical. Between 

 the spore-forming hyphee arise bundles of sterile hyphte, which 

 grow up out of the peridium and carry up with them the spores. 

 The spores germinate by the development of a filamentous 

 mycelium, or by the formation of fusiform sporidia. From the 

 investigations of E. Fischer,* it would appear that this fungus is 

 related to the Ustilaginei both by its spore-formation and by the 

 manner in which its spores germinate. 



Graphiola phcenicis. (Moug.) 



Conceptacles erumpent on the leaves of the host-plant, i-i'5 mm. 

 wide, '5 mm. high, opening above and allowing the sterile 

 hyphge to protrude. Outer peridium black and corneous ; 

 inner peridium delicate, colourless. Sterile hyphge yellow, 

 protruding 2 mm. or more. Spores en masse yellow, globose 

 or elliptical, 3-6yu, across. Membrane thick, colourless, smooth. 



Synonyms. 



Schrot. in Cohn, "Krypt. Flor.," vol. iii. p. 289. 



Graphiola pJixnicis^ Moug. Schrot., "Krypt. Flor. Schl.," 

 vol. iii. p. 289. 



Corda, " Anleitung," t. C. 26, Nos. 5-8. Cooke, "Hdbk.," 

 p. 546. 



On the leaves of Phoenix dadylifera in greenhouses. 



ENTORRHIZA. C. Weber. 



Mycelium parasitic in the tissues of living plants, producing 

 large spores at the ends of lateral branches. Spores simple, 

 single or numerous in the cells of the host-plant. Epispore 

 thick, germinating by one or more thin germ-tubes, which are 

 sometimes slightly branched, and which develop, both at their 

 ends and lower down, small sickle-shaped promycelial spores f 



* E. Fischer, Bcitrag. zjcr Kcnntniss der Gattung Graphiola, Bot. Zeit., 

 1883. 



t C. Weber, Ueber den Pike der IVttrzelanschwellungen von yuncusbufo/tius. 

 Bot. Zeit., 18S4. 



