hypocrella and aschersonia. 199 



Hypocrella. Aschersonia. 



H. tuhulata . . (Not named) 



Aschersonia columnifera 



Aschersonia acutispora 



A . taitensis 



A. Tamurai 



A. Aleyrodis 



A . hypocreoidea 



A. Goldiana 



A. australiensis 



A. Andropogonis 



(Not named) 



Aschersonia placenta 



H. Andropogonis 

 H . Sloanese 

 H. Racihorslcii 



In the Lecaniicolse the first seven species are usually sxib- 

 globose and even, though in H. pnlmse, H. caulium, and H. 

 olivacea the stroma is sometimes scutate or flattened pulvinate. 

 H. scutata, convexa, and bispora are flattened pulvinate or 

 discoid. //. verruculosa and the six following species are 

 tuberculate. .H. tiirhinata bears pezizoid discs, at least in its 

 Aschersonia stage ; H. phyllogena, in its typical form, is stud- 

 shaped ; and H. oxystoma is columnar in its Aschersonia 

 stage. 



Of the Aleyrodiicolse, H. discoidea, H. viridans, and H. 

 palmicola are typically discoid : their Aschersonia stages have 

 regular, more or less globose pycnidia. A. badia, A. brunnea, 

 A. flava, A. crenulata, and ^4. bliimenaviensis have similar 

 pycnidia, the first four having discoid stromata, while that of 

 the last is somewhat stud-shaped. H. Mollii has a flattened 

 pulvinate stroma, sometimes tuberculate, and its pycnidia 

 are regularly oval. H. duplex has either simple pulvinate, or 

 compound tuberculate stromata, with regular globose pycnidia. 

 In H. tubulata, A. columnifera, and A. acutispora, the stroma 

 usually bears projecting cjdindrical processes. A. taitensis 

 and A. Tamurai are discoid, the latter tending to flattened 

 pulvinate ; their pycnidia have definite ostiola, but are 

 irregular towards the base. The remaining species have 

 flattened pulvinate stromata, with widely-open, irregular 

 pycnidia. 



6(9)21 . (27) 



