A CONTRIBUTION TO THE FLORA OF THE COUNTY 289 



"P. taraxaci Plow, 



U.andT. On Taraxacuni officinale, M^Xdon {¥{.) \ Coggeshall 

 (T.) ; Broomfield (C). 

 P. polygoni Pevs. [P. aniphihii Fckl., P. polygononmi, Link.). 

 • U. {Urcdo poli/gonornni, D.C.). On Polygonum amphihium, 

 Beeleigh (H.) ; on P. convolvulus, Woodham Walter 

 (H.) ; Chelmsford and Broomfield (C.) ; on P. lapatJii 

 folium, Braxted, Broomfield and Springfield (C.) ; on 

 tP. sieboldii, Witbam (T.) ; on fP. persicaria, Maldon 

 (H.). 

 T. Same localities and hosts. 

 P. tanaceti D.C. (P. discoideannn, Link.). 



U. and T. On Tanacetum vulgave, Maldon (H.) ; on Artemisia 

 vulgaris, Maldon (H.). 

 P. pruni Pers. (P. pvunoruni, Link.). 



U. and T. On Prunus domestica, Maldon (H.) ; Witham (T.). 

 '-'P. anthoxanthi, Fckl. 



U. On Anthoxanthum odoratum, Widford (C). 

 P. lychnidearum, Link. 



U. and T. On Lychnis diuvna, Maldon (H.) ; Kelvedon (T.) ; 

 Hazeleigh and Linguard Common (C). 

 '''Puccinia acetosae Sc/tum. — I am not aware that this is 

 anywhere, except in a MS. list in my possession, referred to as 

 British. I therefore append a description : — 



Sori scattered, on the leaves small, irregulady rounded, on the stems and 

 petioles oblong, not long covered by the epidermis, Uredospores globose, elliptic 

 or pyrifovm, 24-30 X 20-25 u., brown, echinulate. Teleutospores oblong or 

 subclavate, constricted in the middle, apex rounded, 30-45 X 20-25 m.> 

 subverrucose, chestnut-brown, pedicels hyaline, long, slender, deciduous. 

 On Rumex acetosa and R. acetosella. 

 Occurring in Germany, Switzerland, and Italy. 



[See Korn in Hedwigia 1876, p. 184 ;Winter Die Pilze, p. 187 ; Schroet. Pilz. 

 Schles, p. 339 ; Sacc. Sylloge, Vol. vii., p. 638 ; Syn. Uredo acetosae, 

 Schum. {Saell. II. p. 231) ; Piiccina ntinicis'L^'&ch.X'^w Rabeiih. Fungi Eicrop. 

 p. 496). J 



Mr. Heaver found a rust fungus on R. acetosella at Maldon, 

 and Dr. Plowright, to whom I am indebted for references to the 

 original descriptions of the fungus which I have consulted, 

 referred it to this species. 

 P. tragopogi Pers. 



JE. {ALcidium tragopcgonis Pers.). On Tragopogon pratensis, 

 Maldon (H.) ; Boreham (C.) ; nr. Broxbourne (W.). 



