553 



AUSTRALIAN FUNGI, NEW OR UNRECORDED. 

 DECADES V.-VI. 



By D. McAlpine, Corresponding Member. 



The following Fungi are all new species with the exception of 

 three, and they belong to 15 different genera. 



Schizotrichum, a new genus of Hyphomycete, has been con- 

 stituted to include a form found on the flowering stems of a 

 native Lobelia. Two Rusts are recorded, one on the Marigold 

 and another on Stipa. The former was first observed in 1892, 

 but only one stage (cecidiiwi) was met with until 1902, and con- 

 sidering the wide range of the Rusts, it is strange that it has not 

 been discovered elsewhere on such a widely distributed cultivated 

 plant. 



41. ASCOCHYTA ARIDA, n.sp. 



Spots brown, arid, becoming perforated, elliptical to irregular, 

 with slightly raised margins, often confluent and forming irregular 

 patches, with minute, black, punctiform, aggregated pustules. 

 Perithecia golden-brown by transmitted light; depressed globose, 

 erumpent, membranaceous, with round papillate mouth, average 

 170 /x diam. Sporules pale green collectively, oblong, 1-septate, 

 not constricted at septum, rounded at both ends, sometimes 

 slightly narrower at one end, 2-guttulate, 17-19 x 4-4| /x. 



Swan Hill, Victoria; on languid leaves and dried-up dead 

 shoots of Micotiana glauca, Graham; Oct., 1899. Very common. 

 The shoots were completely dried up, with bark peeling off, and 

 the erumpent perithecia were aggregated here and there in irregu- 

 lar groups. 



Ascochyta nicotiayice, Pass., found on the leaves of Kicotiana 

 tahacum in Italy, has ovoid-oblong, hyaline sporules, slightly con- 

 stricted at septum; whereas in this species the sporules are of a 



