Transactions and proceedings of the Royal Society of South Australia (Incorporated) . hihhertiae, though it differs from it inthe size of the spores, which are consistently shorter in ourspecimens. In other respects it conforms to McAlpinesdescription (McAlp., 1906, p. 185). Aecidium oleariae, McAlp. On stems of Oleariaaxillaris, F. v. M., I., on stems only. Victor Harbour, June16, 1918, T. G. B. O. (McAlp., 1906, p. 197). 173 USTILAGINEAE. UsTiLAGO CYNODONTis, P. Henii. Destroying the inflor-escences of Gynodon dactylon, Pers. Mile End, Jan., 1918,G. Quinn. Although the host plant of this fun
Transactions and proceedings of the Royal Society of South Australia (Incorporated) . hihhertiae, though it differs from it inthe size of the spores, which are consistently shorter in ourspecimens. In other respects it conforms to McAlpinesdescription (McAlp., 1906, p. 185). Aecidium oleariae, McAlp. On stems of Oleariaaxillaris, F. v. M., I., on stems only. Victor Harbour, June16, 1918, T. G. B. O. (McAlp., 1906, p. 197). 173 USTILAGINEAE. UsTiLAGO CYNODONTis, P. Henii. Destroying the inflor-escences of Gynodon dactylon, Pers. Mile End, Jan., 1918,G. Quinn. Although the host plant of this fungus is widely grownfor lawns, and occurs wild on dunes in many places, the fungushad not been recorded in South Australia before. It hassince been found on many occasions in gardens around Ade-laide during the summer (McAlp., 1910, p. 155; Osbom,1918, 1921). UsTiLAGO Tepperi, Ludw. Sori on inflorescences whilestill enclosed in abnormally numerous sheathing leaf-bases,forming a compact black mass in which generally only theaxis of the inflorescence remains of the host. Spore mass. Fig. of Ustilago Tepperi, Ludw. (xllOO). ultimately exposed by decay of the leaf-bases and becomingpowdery. Spores brown, globose to ellipsoidal, finely echinulate,10-14^. On Neurachne alopecv/roides, R. Br. Burnside, Nov.,1916; Moppa Scrub, Oct. 1917. A smut on Neuraclme alopecuroides was sent to Ludwigby J. G. O. Tepper from Torrens Gorge, South Australia,who described it in 1889. The fungus appears to have alimited Australian distribution, for McAlpine, in 1910, saidhe had not seen any smut on that host. In November, 1916,it was first found at Burnside, some six miles south of thetype locality, and later in the Moppa Scrub, some 30 milesto the north. In both localities it is locally common. 174 The infected inflorescence is very characteristic (pi. vii.,iig. 2). The normal host produces an inflorescence at the endof a long bare peduncle, as much as 25 cms. above the highestleaf. The lamina
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