169 



PucciNiA FLAVESCENTis, McAlp. Oil living leaves of 

 Stipa scahra, Lindl., var. auriculata, II. Also on Stipa 

 puhescens, R. Br., II., Sept. 23, 1921, V/. J. Spafford. Both 

 these are new host species for the fungus. Barluca fihim was 

 parasitic on the uredosori (McAlp., 1906, p. 119). 



Puccinia semibarbatae, n. sp. 



Teleutosori on stems and leaves, amphigenous, small, up 

 to 2 X 1 mm., gregarious, occasionally arranged in concentric 

 groups, covered by epidermis, convex, becoming exposed, firm 

 when fresh, but becoming powdery when dry, deep brown- 

 black. 



Teleutospores irregular, fusiform, obovate, or sub-globose; 

 apex generally rounded and not thickened, often conical or 

 truncate; rounded at the base, or slightly attenuated; more 

 or less constricted at the septum ; dark chestnut-brown : sur- 

 face with irregular reticulate ridges and depressions; 

 33-48 pi X 19-26 /x. 



Pedicels short, deciduous, slightly tinted. 



On living stems and leaves of Bulhine semihai^hata, Haw. 

 Minnipa, Central Eyre Peninsula (S. Austr.), 1915 (fig. 2). 



This rust, which has very characteristic telia, occurred in 

 quantity upon the plants of Bulhine seuiiharhata growing 

 around the granite outcrops at Minnipa Hill, on the Govern- 

 ment Experimental Farm, Central Eyre Peninsula. It has 

 not been found on its host on the eastern side of Spencer Gulf. 



Puccinia saccardoi, Ludw. On living leaves of Goodenia 

 amjde.jcans, F. v. M., I., III. Bosetta Head, near Victor 

 Harbour, Nov., 1915, T. G. B. O. This host plant is not 

 given by Mc Alpine. The rust is exceedingly common on its 

 host in this locality, the aecidia forming large circular patches 

 up to as much as 15 mm. diameter on both sides of the leaf. 

 The teleutosori occur with the aecidia, usually confluent, often 

 forming two, rarely more, concentric rings, usually towards 

 the circumference of the aecidial patch (McAlp., 1906, p. 147). 



Puccinia angustifoliae, McAlp. On Podotheca angusti- 

 folia, Less., I., III., X. Wirrega B.S., Oct., 1916, T. G. B. O. 



By a curious confusion in the synonymy of the host plant, 

 McAlpine gives the name as Scorzonera angustifolia, L. The 

 error seems to have arisen in the following manner : — The 

 genus Podosperma, Labill., 1806, becomes Podotheca, Cass., 

 1822, since Podosfermum, DC, was already a synonym for 

 Scorzonera, L. (Index Kewensis). Podotheca (Podosperma), 

 belonging to the Compositae Inuleae-Gnaphalinae, is a genus 

 endemic to Australia, and is the host of the native rust 



