Pvccinia Compositae. 155 



On leaves and stems of Cichorium intybus L. 



Victoria 1885 (Mueller 3 ) II. Near Melbourne, Au% 1896 

 Phillip Island, Jan., 1900; March, 1904. 



The uredospores were common chiefly on the leaves, but the teleutospores 



e rather scarce, and occurred mostly on the midribs. Fischer 5 describes 

 the teleutospores as being finely warted, while Sydow considers them to be 

 smooth. When the uredo and teleutospores are examined together, as they 

 often occur in nature, the former are seen to be covered with decided 

 prickles, which project from the margin, while the latter have fine points on 

 the surface, which are only to be seen at the margin by careful focussing. 



Although no mesospores were met with there were several cases where 

 the upper cell of the teleutospores was colourless, shrivelled, and much 

 reduced in size, while the lower cell was enlarged. The two cells are 

 generally equal in length, but in one of the cases referred to the lower cell 

 was 25 fj. long, and the upper colourless one only 6 p. 



Darluca filum Cast., was plentiful on the uredosori and the sori 

 containing uredo and teleutospores intermixed. 



(Plate VIII., Fig. 61 ; Plate D., Fig. 18.) 



Cineraria. 



1. Puccinia cinerariae Me Alp. 



I. Aecidia on both surfaces of the leaf, running along veins and gre- 

 garious, causing depressions on upper surface and swelling of 

 the veins on under surface, ^ mm. diam. ; pseudoperidia very 

 slightly projecting, with margins white, everted, fimbriate ; peri- 

 dial cells roughly quadrangular, often rounded at one end, longer 

 than broad, with radiating marginal lines, 22-26 X 19-21 ju. 



Aecidiospores bright orange, subglobose to polygonal, very 

 finely verrucose, 15-19 p diam. or 15-17 x 13 /*. 



III. Teleutosori intermixed with aecidia, black, comparatively rare. 

 Teleutospores clavate, chestnut-brown, generally rounded and 

 much thickened at apex or bluntly pointed, occasionally truncate, 

 constricted at septum, 36-54 x 17-24 ^w, average 40 X 23 p. ; 

 upper cell usually darker in colour, hemispherical, apex thickened 

 to a depth of 9 p, 17-24 ju long; lower cell gradually tapering 

 towards base, somewhat triangular, 18-30 p. long; pedicel per- 

 sistent, tinted, up to 45 p long. 



X. Mesospores chestnut-brown, obovate to elongated elliptical, much 

 thickened at apex, with long pedicel, 27-36 X 13-23 p. 



On leaves of cultivated Cineraria. 



Victoria In nursery near Melbourne, April, 1899 (Cronin). 



The following note accompanied the specimen : The plants were grown 

 under glass, and were generally very healthy. There are not many leaves 



ifected owing to the care that is taken to cut out the spots as soon as 

 noticed. The disease spreads rapidly if neglected, and completely spoils a 

 plant by denuding it of its foliage. 



Caeoma cinerariae Rostr., was found on leaves and stems in Jutland. 



(Plate VIII., Fig. 60.) 



