120 The Scottish Naturalist. 



1313, Trichobasis linearis Lev. on grasses; 1354, 

 ALc. Berberidis Pers. on Barberry). 



P. rubigo-vera (D.C.) (13 12, Trichobasis rubigo-vera 

 Lev. on grasses; 1362, JEc. Asperifolii Pers. on 

 Anchusa arvensis, rare in Scotland ; P. straminis 

 Fckl., also referred to this species ; has not yet been 

 reported from Scotland). 



P. coronata Corda (12 17, at Menmuir; ^Ec. Rhamni 

 Gmel. on Rhamnus sps., also referred to this species ;. 

 has not been recorded from Scotland). 



P. Molinia) Tul. (1218 on Mol. coerulea ; 1377, ^Ec. 

 Orchidearum Desm. on Orchis and Listera ; both 

 forms rare in Scotland.) 



P. Poarum Niel (1366 c, ^Ec. Tussilaginis ; var. of 

 Mc. Compositarum ; the Puccinia-spores referred 

 to this species occur on species of Poa ; they 

 were found in September, 1883, at Granton, on 

 Speyside, by Mr. Plowright and Dr. Keith). 



P. Magnusiana Koern. (1375, Mc. rubellum Pers. ;. 

 teleuto-spores have not been detected in Scotland.) 



P. sessilis Schn. (1376, Mc. Allii, on Allium ursinum ; 

 P. sessilis occurs on Phalaris arundinacea ; it is not 

 known as Scottish). 



P. Caricis (Schum.) (12 16, P. striola Link, on Carex 

 sps. ; and 1364, Mc. Urticae D.C. on Urtica dioica 

 and U. urens). 



P. silvatica Schr. (1368 a., ^Ec. Compositarum Mart. 

 var. Taraxaci, on Taraxacum officinale ; the teleuto- 

 spores, on Carex muricata and one or two other 

 Carices, are not known as Scottish). • 



To which groups the following species should be referred is 

 uncertain at present, viz. : — 



P. clandestina Carm. (1233). 

 P. Andersoni B. and Br. (1242). 



GYMNOSPORANGIUM, teleuto-spores, two-celled, not enclosed 

 in a peridium, but closely united to form a vertical spore- 

 bearing layer, in which they are embedded in a gela- 

 tinous substance ; eecidio- spores in a well -formed 

 peridium. 



G. Sabinse (Dicks.) (1280, Podisoma Sabinse Fr., on 

 Juniperus Sabina ; Rocstelia cancellata, regarded as 

 the secidium, is not known from Scotland. 



G. Clavariaj forme (Jacq.) (1279, Podisoma Juniperi Fr. 

 on Juniperus communis; and 1346, Roestelia 

 lacerata Tul. on hawthorn). 



G. Juniperinum (L.) (1278, and 1345, Roestelia cornuta 

 Tul. on mountain-ash.) 



