288 THE UREDINEAE AND USTILAGINEAE OF ESSEX: T. On Carex paludosa, Beeleigh (H.) ; Springfield and Chelmsford (C.). *P. obscura Schrot. U. and T. On Luzula campestris, South Weald (T. and C.) ; Danbury, Widford, and Epping (C.). P. phragmitis Schum. AE. (AEcidium rubellum Pers.). On Rumex obtusifolius, Beeleigh (H.) ; Little Braxted (T.) ; on Rumex sp., Canvey Is. (W.). U. and T. On Phragmites communis, Beeleigh (H.). T. (P. graminis b arundinis). There is a specimen of this in Mr. Varenne's collection not mentioned in the list. [P. magnusiana Korn. There are three specimens in Mr. Varenne's collection which appear to belong here ; two collected at Kelvedon and listed under P. arundinacea, and one at Wivenhoe under P. graminis.] *P. perplexans Plow. AE. On Ranunculus acris, Writtle (C.). *P. persistens Plow. AE. On Thalictrum flavum, Little Braxted (T.). P. suaveolens Pers. Spermogonia. On Carduus arvensis, Maldon (H.) ; Witham, Feering, Broomfield, and Coggeshall (C.). U. (Trichobasis suaveolens Lev., Uredo suaveolens Pers.) On Carduus arvensis, Harlow and Romford (W.) ; Maldon (H.) ; South Weald, Coggeshall, and Broomfield (C.) ; on Centaurea cyanus, Maldon (H.). T. (P. obtegens Tul.). Same hosts and localities as the Uredo- form. *P. bullata Pers. U. and T. On Conium maculatum, Battlesbridge (C.). P. hieracii Schum. (P. compositarum Sch.) U. On Carduus lanceolatus, Beeleigh (H.) ; on †Chrysanthemum Chelmsford, Romford, and Sturmer (C.). U. and T. In Hieracium murorum, Woodham Walter (H.) ; on Crepis virens, Maldon (H.) ; on Scabiosa Succisa, Widford (C.) ; on Leontodon autumnalis and L. hispidus, Widford (C.). P. centaureae Mart. U. and T. On Centaurea nigra, Maldon (H.); Loughton (W.)