117 



AUSTRALIAN FUNGI, NEW OR UNRECORDED. 

 DECADES VII.-VIII. 



By D. McAlpine. 



Of the twenty species recorded in this paper, seventeen are 

 new, and belong to thirteen different genera. At least two of 

 these genera are worthj' of special mention. Myriangium, which 

 was formerly classed among the lichens, is represented by two 

 species, one of which is a verj^ injurious parasite. The asci are 

 produced in the outside tissue of the so-called thallus, and as 

 fresh asci are formed beneath this, the outer layer breaks away 

 as the new tissue is pushed forward. There is still some doubt 

 as to its exact systematic position. The other genus is new, and 

 named Amphichceta, on account of its possessing spores with a 

 hair or seta at either end. In Mcnochcetia, Sacc, to which it is 

 closely allied, the spore possesses only a single hair as the name 

 denotes. 



From New South Wales there are four species, represented by 

 as many genera — AUernaria, on Carnation; Barhea, on clayey 

 soil; Hexagonia, on dead wood; and Humaria, on gritty soil. It 

 may be noted that in the genus Hexagonia, this is the first 

 occasion on which the spores have been described, presumably on 

 account of the freshness of the specimens, and their being collected 

 at the proper season. 



The common Horehound, which is spreading so extensively in 

 New South Wales and Victoria, is attacked by a Phyllosticta, 

 which causes spotting of the leaves and withering particularly 

 towards the tips. 



61. Alternaria longispora, n.sp. 



Forming dark olive tufts on withered portions of leaves. 

 Conidiophores olivaceous, erect or ascending, simple, stout, septate, 



