Uromyces Legnminosae. 



On phyllodes of Acacia notabilis F.v.M. 



S. Australia Near Gawler, July, 1885 (Tepper) (Ludwig 2 ). 

 On phyllodes of Acacia dallachiana F.v.M., and A. penninervis Sieber, 



Victoria Alps, near Bright, Dec., 1904 (C. French, jun.) 



On phyllodes of Acacia dealbata Link. 



Victoria Orbost, Dec., 1905, II. III. 

 On phyllodes of Acacia penninervis Sieber, A. microbotrya Benth. and A. 

 neriifolia A. Cunn. in National Herbarium, Melbourne. 



New South Wales Twofold Bay. 



Queensland Brisbane River. 

 On phyllodes of Acacia pruinosa A. Cunn. 



New South Wales Gosford, Jan., 1906 (Froggatt). 



On Acacia sp. 



Queensland Brookfield, Brisbane River (Bailey 1 ' 19 ). 

 New South Wales (Cobb 10 ). 



The appearance presented by this rust varies according to the presence or 

 absence of spermogonia. In the Queensland specimens there are black 

 discoid tubercles with spermogonia in the centre and surrounded by the sori, 

 while in the Alpine specimens the numerous sori are scattered over the green 

 surface of the phyllode. 



The size of the uredospores is given by Winter as 32-35 x 20-25 

 but there are occasional elongated forms which may reach a length of 54 

 They somewhat resemble those of Uromycladium notabile, but the markings 

 on the epispore are much closer together. 



The teleutospores are very characteristic, but very variable both in shape 

 and size. The apex may be prolonged into a single process, or there may be 

 quite a number, at least up to 6. As regards size they are generally 

 elongated, and the measurements given are the mean of a number taken f roi 

 spores ending in a single process. They germinate at once without a period 

 of rest. The specific name of digitatus is so appropriate that it is unfortu- 

 nate it has to be set aside in obedience to the law of priority. 



This species was first described by Berkeley and Broome in a list of 

 fungi from Brisbane, Queensland, as Melampsora phi/llodiorum in 1883, and 

 drawings accompany the description. Specimens of the original material 

 have been kindly supplied to me by Mr. F. M. Bailey, Queensland State 

 Botanist, and uredospores and teleutospores from these are shown in 

 PI. XXV., Figs. 218-220. There is no doubt as to its identity. 



The following is' the original description of Berkeley and Broome : 

 Sori in amphigenous tubercles ; spores arising from delicate filaments, 

 rather fusiform, 55-58 p long, granulated, mixed with others which are 

 elongated, uniseptate, fusiform, even, 22 fj. long." The longest uredospore 

 found was 54 p long, and the uniseptate spores of Darluca filum Cast., wei 

 a No very common. 



Next, Winter, in 1886, described the same fungus from S. Australia as 

 Uromyoeu digitatus, the teleutospores being recorded for the first time. 



Then Cooke and Massee, in 1889, described a Uromyces phyllodiae f rom 

 Brisbane as follows : " Sori minute, orbicular, compact, brown, crowded on 

 <-lli).tir,lnill;ite, brown spots, 3-5 mm. long, at length naked, not pulverulent. 

 Teleutospores elliptic, obtuse, rarely apiculate, 



Uredosporea not seen. 



brown ; epispore minutely warted, rather thick, hyaline, thickened at th 

 apex, 40-45 x 16- IS /.-'' A portion of the original material ^as supplied 

 by Mr. Bailey, and both uredospores and teleutospores have been found. 



