174 



The infected inflorescence is very characteristic (pi. vii., 

 iig. 2). The normal host produces an inflorescence at the end 

 of a long bare peduncle, as much as 25 cms. above the highest 

 leaf. The lamina of the leaves at the base of the peduncle 

 is short (2-3 cms.), with a leaf -base of almost the same length. 

 The infected inflorescences have scattered leaves over their 

 ■entire" length, and a group of three or more leaves terminating 

 the stem. Tlie laminae of these are 1-2 cms. long, with rather 

 longer leaf -bases closely investing the diseased inflorescence. 

 There is thus a characteristic gall-like development (McAlp., 

 1910, p. 161) . 



CiNTEACTiA HYPODYTES, (Sclil.) Diet. On stems of Stipa 

 jlavescens, Labill. Granite Island, Jan. 3, 1919, T. G. B. O. 



Occurring especially on the upper internodes, within the 

 sheathing leaf -bases, and preventing the formation of an 

 inflorescence (McAlp., 1910, p. 171). 



Urocystis hypoxidis, Thaxt. On leaf-bases and in- 

 florescences of Hypoxis piisila, Hook, f. Grange, June 2, 

 1917, T. G. B. O. 



New host species. The fungus has been recorded from 

 Victoria on H. glabella, but it has not been observed on 

 the latter in South Australia, though the plant grows com- 

 monly in the Adelaide district (McAlp., 1910, p. 197). 



BASIDIOMYCETES. 



AuREOBASiDiUM viTis, var. ALBUM, Montmart. On leaves, 

 young shoots, and inflorescences of Vitis vinifera^ L. Lyrup, i 

 Watervale, -Berri, Renmark, Oct., 1921. 



In October, 1921, specimens of young vine leaves were 

 sent in from several localities, exhibiting blackened areas of 

 irregular extent. If placed in a moist dish, these rapidly 

 spread over the whole leaf, and whitish pustules consisting 

 •of basidia bearing spores on sterigmata formed both on leaf 

 surface and fruit stalks. In the original description (1882) 

 of Aureohasidiu7n vitis, Vial, et Boy., the fungus was described ■ 

 as being clear yellow; but in 1897 Montemartini (D described f 

 a variety occurring on leaves and fruit .stalks which he named 

 A. vitis, var. album, because the pustules were whitish. 

 Later in that year, McAlpine described a form occurring in 

 Victorian vineyards, chiefly on the berries, as A. vitis, var. 

 tuberculatum. The South Australian specimens, both in the 

 parts affected and in the nature of the spore pustules, agree 



(1) Montemai-tini, in : Atti dell' Istit. botan. dell' Universita 

 -di Pa via, 1897 (ref., Zeitschr, f. Pflanzenkrank., vii., p. 359, 

 1897). 



