376 AUSTRALIAN FUNGI, 



This is evident!}^ a serious disease of the Orange, rotting the 

 entire contents, while the skin looks quite healthy at first, although 

 ultimately becoming discoloured. Mr. French observed that 75% 

 of the Oranges examined were black inside (Internal Black Rot), 

 while the outside appearance of the fruit was perfect. There 

 was a considerable amount of 'Scale' on the skin, which undoubt- 

 edly rendered the fruit an easy prey to the fungus. This mould 

 varies considerably in its colour. It is snow-white at first, then 

 greenish and blackish, and the conidia form a yellowish-green 

 layer at first, then dark olivaceous. 



7. METASPH.ERIA LEPIDOSPERMiE, U.Sp. 



Perithecia in lines close together on stem, often on inky-black 

 patches, punctiform, minute, black, membranaceous, with pore, 

 erumpent through stomata, 72 ^ diam. Asci very delicate and 

 rupturing as soon as ripe, cylindric-clavate, rounded and thickened 

 at apex, narrowing towards base, and somewhat pointed at the 

 end, 86-90 x 13-1 5 ju; paraphyses slender, as long as asci. Sporidia 

 biseriate, elongated-fusoid to elongated-clavate, slightly curved, 

 typically 3-septate, and medium septum most distinct, not con- 

 stricted at septa, at first hyaline then honey -3^ellow, 25-26 J x 6 J-7/x. 



Werribee, Yic. (C. French, Junr.); on Lepidosperma sp.; May, 

 1902. 



The stems were conspicuously discoloured with inky-black 

 patches, which were isolated or run together, and either partial^ 

 or entirely surrounding the stem. The minute perithecia running 

 in lines are just visible to the naked eye, and while they frequentl}^ 

 occur on the discoloured stem they are also found on the black 

 patches. Hundreds of plants are attacked and dying; even the 

 young green shoots are affected, and die off before reaching 

 maturity. 



8. Phoma berberina, Sacc. (fc Roum. 



Sporules fusoid, hyaline, 6-7 x 2-2J /x. 



Malvern, near Melbourne, Yic; on withered portions of leaf of 

 Berherls vulgaris, L.; Jul}', 1902. 



