Uromyces Leguminosae. 93 



Acacia. 



13. Uromyces bicinctus Me Alp. 



II., III. Sori ruddy-brown, gregarious often confluent, raised, compact, 

 rupturing epidermis irregularly. 



II. Uredospores yellowish-brown, clavate to oval or ellipsoid, rounded 



at apex and slightly thickened, densely warted and warts arranged 

 in regular longitudinal lines, with distinct germ-pores, generally 

 arranged in two bands about one-third length of spore from either 

 end, and usually three to four in each band on one face, 30-40 X 

 13-18 //, occasionally reaching a length of 45 /z, and variable in 

 breadth, average 34 x 15 p pedicel similarly coloured to spore or 

 paler. 



III. Teleutospores intermixed with uredospores, pallid but thickened 

 considerably at apex and brown (8-11 //), smooth, ellipsoid, and rounded at 

 both ends, occasionally prolonged into one or two processes at apex, 28-34 



x 17-23 /t; pedicel persistent, hyaline, short. 



On phyllodes and pods of Acacia f asciculif era F.v.M. 



Queensland Rockhampton, 1867 (from host-plant in National 

 Herbarium, Melbourne). 



This species approaches somewhat to U. phyllodiorum (B. and Br.), 

 Me Alp., in the uredospores, but they are shorter and much narrower, and 

 distinguished at once by the two bands of germ-pores, on account of which 

 the specific name is given. The teleutospores are also much thickened at 

 apex and destitute of processes as a rule, although occasionally two may 

 appear. 



(Plate XLIIL, Fig. 318.) 



Vicia. 



14. Uromyces fabae (Pers.) De Bary. 



De Bary, Ann. Sci. Nat. Ser. 4, XX. (1863). 

 Sacc. Syll. VII., p. 531 (1888). 



[O. Spermogonia yellowish, in small groups on leaves and stem.] 

 [I. Aecidia scattered, in rings or orbicular patches ; pseudoperidia 

 short, slightly prominent, flat, with torn white edges. 



Aecidiospores subglobose, orange, finely echinulate, 16-26 /t 

 diam.] 



II. Uredosori amphigenous, roundish, pale brown, powdered, scattered, 

 often confluent, soon naked. 



Uredospores subglobose or ovate, ochraceous, echinulate, with 

 three equatorial germ-pores on one face, 20-30 x 17-20 yu. 



[III. Teleutosori rounded on the leaves, more abundant and elongated 

 on the stems, often confluent, blackish-brown. 



Teleutospores variable in form, obovate or broadly clavate, 

 smooth, dark-brown, apex darker, thickened (8-10 p), and rounded, 

 truncated or conical, sometimes with colorless papilla, 24-47 x 

 17-30 ju; pedicels hyaline or pale brown towards spore, persistent, 

 up to 110 /z long.] 



On stems, leaves, and pods of Broad Bean (Vicia faba L.). 

 New South Wales. 1894 (Cobb 9 ). 

 Queensland. Gladfield (Gwyther) (Bailey 19 ). 



