1 84 



Pucdnia Crticiferae. 



A few one-celled teleutospores were observed among the ordinary 

 teleutospores, which they resembled in every respect except size and shape, 

 even having the germ-pore quite distinct beneath the apex, ellipsoid, with 

 small hyaline apiculus, 25-26 X 20 /u. 



Aecidium violae Schum. is given by Dr. Cooke in his Handbook as 

 occurring on Victorian native violets, but it is the aecidium belonging to 

 P. hederaceae Me Alp. 



This species was at first determined as P. aegra Grove by Winter 2 , 

 but on comparing the two species they are seen to be decidedly different. 



It is closely allied to P. violae (Schum.) DC., but differs in the 

 teleutospores being larger, and warted all over. Specimens of P. violae 

 were examined from Syd. Ured. Exs., No. 286, on Viola arenaria, and from 

 Kellerman's Ohio Fungi, No. 96, on Viola blanda. The average size of the 

 teleutospores was found to be 22-32 x 16-19 /u, and were generally 

 smooth, although occasionally a little warted. 



P. aegra Grove, is recorded by Cooke for Australia; but all the speci- 

 mens I have met with, including part of the same collection of material 

 forwarded to Dr. Cooke, have echinulate aecidiospores, and warted 

 teleutospores, and are therefore not this species. 



(Plate XIII., Figs. 109-112 ; Plate E., Figs. 24, 25.) 



CRUCIFERAE. 

 120. Puccinia cruciferae McAlp. 



I. Aecidia anaphigenous and on stems, in irregular clusters or circinat 

 large, cup-shaped, J-J mm. diam.; pseudoperidia with whitisl 

 edges, crenulate, slightly revolute ; pseudoperidial cells ovoid 01 

 oblong, punctulate all over, with striated margin, average 25 

 long. 



Aecidiospores orange, subglobose, finely echinulate, 14-16 

 diam. 



III. Teleutosori on upper surface of basal leaves, associated wit 

 aecidia, a few together, round, bullate, compact, covered at fii 

 by raised grey epidermis, which splits irregularly, up to 1 mi 

 diam. 



Teleutospores black in mass, dark chestnut-brown individual!] 

 oblong to clavate, smooth, slightly constricted at septum, bluni 

 pointed, rounded or truncate at apex and thickened up to 9 

 tapering slightly or rounded at base, 37-62 X 18-25 p ; pedicels 

 usually slightly tinted towards apex, persistent, up to 50 p. long and 

 10 p broad. 



X. Mesospores common, similarly coloured to, or paler than, teleut 

 spores, variously shaped, ellipsoid, oblong or ovate, point 

 rounded, or truncate at apex, and thickened up to 7 p, 

 25-34 x 14-20 p, with pedicels equally long and similar to those 

 of teleutospores. 

 On Cruciferous plant. 



New South Wales Guntawang (Hamilton). 



It differs from P. cruciferarum Rud., in having aecidia, and fi 

 P. barbareae Cooke, in which the teleutospores are broadly lanceolate ai 

 considerably narrower. 



