1^8 Soros por'mm. 



Eriachne^ 

 34. Sorosporium eriachnes Tluiem. 



Thuemen Symb. Myc. Austral. II., p. 4, No. 97 (1878). 



Cooke, Haiidb. Austr. Fung., p. 328 (1892). 



Sacc. Syll. VII., p. 514 (1888). 



VstUaqo australis Cooke, Grev. VIII., p. 34 (1879). 



Sori in ovaries filling the glumes witli a powdery mass of black spores^ 



Spore-balls small, irregular. 



Spores very variable in shape, irregular, angular or quadrangular, 

 subglobose, or elliptic, smooth, opaque brown, 10-14 x 8-11 /<. 



There are numerous large lemon-coloured smooth cells scattered 

 among the spore masses, globose to subglobose or ellipsoid, with 

 distinct thick walls 4-6 |u broad, 20-29 ^i diam. or 19-29 x 13-16 /<. 



On Eriachne sp. 



Queensland— (Mueller) ; Muckadilla, 1897 (Bailey*^). 

 New South Wales — (Mueller). 



This genus of grasses is not represented in Victoria or Tasmania, although- 

 Cooke gives this smut as occurring in Victoria. A specimen labelled TJsti- 

 lago australis Cooke was kindly sent by the Director of the Royal Gardens, 

 Kew, and the spores were found in clusters although they readily fall away.. 

 Mueller had evidently sent a specimen of this smut both to Thuemen and the 

 Kew Herbarium, and Cooke named it as above in his " Undescribed Fungi 

 in the Kew Herbarium," overlooking the fact that it had already been named 

 and described the previous year by Thuemen. 



(Plate XLI.) 



Eriochloa^ 

 35. Sorosporium mixtum (Mass.) McAlp. 



Tilletia mixta Massee, Kew Bull., p. 145 (1899). 

 Sorosporium eriochloae Griffiths, Bull. Torr. Bot. Club, XXXI., 

 p. 84 (1904). 

 Sori in ovaries, oblong, about 2 mm. in length, enveloped by the glumes 

 and concealed by a conspicuous whitish membrane which ruptures 

 in lobes at the apex and exposes the black rather agglutinated spore 

 masses, with remains of the aborted pistil in the centre ; membrane 

 composed of closely compacted hyaline cells end to end, oblong to 

 cubical, with granular contents. 



Spore-balls somewhat irregular, subglobose to oval or oblong, 

 readily separating into their component spores, 40-80 /< or more 

 in length. 



