94 



AUSTRALIAN FUNGI, NEW OR UNRECORDED. 

 DECADES III.-IV. 



By D. McAlpine, Corresponding Member. 



Of the Fungi here recorded 15 ?.re new species and 14 genera 

 are represented. The Orchids, which are generally comparatively- 

 free from fungi, contribute two, one of the genera (Amerosporium) 

 being new to Australia. The imported Capeweed, although so 

 common and widespread, is usually particularly clean, but two 

 new species have been found upon it. The Kangaroo Grass has 

 likewise yielded two which are new. It is interesting to find 

 parasitic fungi upon such native parasitic flowering plants as 

 Cassytha and Lorantlius. 



The Leaf-curl of the Peach is only too well known in Australia, 

 but the Pear-leaf Blister due to Exoascus hullacus is now recorded 

 for the first time, and care should be taken to prevent its spread. 



21. Amerosporium rhodospermum, n.sp. 



On large discoloured pale patches of still green leaves. Peri- 

 thecia densely gregarious, black, erumpent, ultimately superficial, 

 disciform or sometimes elongated, ruddy brown by transmitted 

 light, membranaceous and composed of poh'gonal cells, astomatous, 

 at first bald, soon surrounded at the margin and scattered all over 

 with stiff hairs, 120-160 /li diam.; bristles dark brown, paler at 

 apex and blunt, cylindrical, slightly swollen at base, curved 

 inwardly at margin, thick-walled, continuous or 1 -septate, 

 30-35 X 5-7 \x. Sporules very pale pink, crescent-shaped, acute at 

 both ends or occasionally blunt at one end, continuous, 18-21 x 

 4-4i,x. 



