168 



We cannot understand the statement in the descriptions 

 cited above that the sori are "concave," for when fresh they 

 project above the surface of the lesion, whilst the teleutospores 

 in all cases examined by us are distinctly globose or ovate, 

 not "clavate or oblong-clavate," and no case of an acute apex 

 has been seen. Tlie spore measurements of the South Aus- 

 tralian specimens are rather smaller than those given by. 

 McAlpine and Cooke. Since the fungus is so characteristic in 

 its growth, and the only rust affecting Bulhine biilhosa on 

 record, there can be no doubt of the species. Possibly the 

 lack of fresh material by Thuemen may account for the dis- 

 crepancies. 



Uromycladium Tepperianum, (Sacc.) McAlp. On stems 

 of Acacia armata, K. Br. Common in Adelaide district; 

 Victor Harbour, Aug., 1915; Athelstone, Aug., 1917, 

 T. G. B. O. 



On Acacia calamifolia, Sweet. Between Port Augusta 

 and Iron Knob, Aug. 22, 1921, J. B. Cleland. Galls 

 abundant on the needle-like phyllodes as well as on the smaller 

 twigs. New host plant. 



On Acacia pycnantha, Benth. Millicent, April 7, 1917, 

 T. G. B. O.; Meadows, 1921, Ambleside, 1921, G. S. 



The brown potato-like galls of this fungus on trees of the 

 golden wattle (A . pycnantha) are so conspicuous that it is 

 surprising that no South Australian record of it exists pre- 

 vious to 1917. It must have been present some years before 

 then, for it was becoming a serious menace to the wattle bark- 

 stripping industry in the neighbourhood of Meadows about 

 that year. In 1918 severe bush fires swept this area, and the 

 wattles which came up after the fire were perfectly free from 

 the fungus. During the last year or two, however, galls have 

 begun to appear on isolated trees again, and the fungus will, 

 no doubt, gradually spread. In this connection it is inter- 

 esting to note that trees may be seen loaded with the rust- 

 galls, yet surrounded by trees which are perfectly free from 

 them. Once a gall has formed on a tree, the fungus spores 

 which are produced on its surface probably become splashed 

 about in the rain drops, under conditions suitable for germ- 

 ination and infection. Thus the tree soon develops numerous 

 galls. Spores will usually be carried to other trees, however, 

 by the agency of wind, which evidently does not lead to those 

 trees becoming rapidly infected (McAlp., 1906, p. 111). 



Puccini A bromina, Eriks. On living leaves and leaf- 

 sheaths of Bromus arenarius, Labill. Minnipa, Oct., 1916, 

 III., X. McAlpine says mesospores comparatively rare, but 

 in this specimen they were fairly numerous (McAlp., 1906, 

 p. 116). 



