100 



Uromyces Chenopodiafeae. 



Teleutospores globose, subglobose or elliptfcal, smooth, bright 

 chestnut brown, apex thickened (8 /*), rounded or occasionally 

 somewhat pointed, 22-34 x 16--20 p, average 28 x 18 /* ; pedicels 

 pale yellowish, persistent, firm, long, up to 90 p. 

 On leaves and stems of Polygonum aviculare L. 



Victoria Near Melbourne, Rutherglen, Myrniong, Goornong, 

 Ardmona, Bunyip, Murramurrangbong Ranges, &c. Common 

 generally throughout the year. 

 Tasmania Sandy Bay, January, 1906, II., III. (Rodway). 



It is only recorded for Victoria and Tasmania, but is probably to be 

 found wherever the host plant occurs. Aecidia were first found on young 

 plants along with the other stages in November, 1904. 



The uredospores are plentiful, more particularly in the spring and 

 summer months, but the teleutospores are formed in the autumn months. 



Darluca filum Cast., commonly occurring on uredosori, was found on 

 tdeutosori in May, 1904. 



(Plate XVIII., Figs. 150, 151.) 



CHENOPODIACEAE. 



A triplex. 



21. Uromyces atriplicis Me Alp. 



Sori epiphyllous, orbicular, scattered, bullate, compact, ruddy brown, 

 erumpent, girt by the ruptured epidermis, about \ mm. diam. 



II Uredospores pale -brown, ellipsoid, finely echinulate, with 3-5 

 scattered germ-pores on one face, 25-29 x 22 JJL. 



III. Teleutospores intermixed with uredospores, dark brown, sub-globose 

 to shortly ellipsoid, finely striated longitudinally, slightly thick- 

 ened at apex, with prominent single apical germ-pore, 22-29 x 

 24-27 p, average 26 x 25 /z. 



On leaves of Atriplex semibaccata R. Br. 



Victoria Royal Park, near Melbourne, April, 1899. (Brittle- 

 bank). 



The groups of spores shown in the Figures are rather smaller than the 

 average, being about 22 x 25 p. Occasionally an abnormal teleutospore 

 occurred reaching a length of 37 ju. 



(Plate XVII., Figs. 146, 147.) 



Beta. 



22. Uromyces betae (Pers.) Kuehn. 



Kuehn, Bot. Zeit., p. 540 (1869). 



Cooke, Grev. XT., p. 98 (1883). 



Cooke, Handb. Austr. Fung., p. 330 (1892). 



Sacc. Syll. VII., p. 536 (1888). 



0. Spermogonia yellowish to honey-coloured, in small clusters, on both 



surfaces of leaf. 



Spermatia hyaline, ellipsoid, 5-6 x 3 p. 



1. Aecidia disposed on orbicular or oblong yellow spots, on both 



surfaces of leaf, mostly about mid-rib and on leaf stalk ; pseudo- 

 peridia white, cup-shaped, with reflexed fringed margin ; peridial 



