284 



the following years f. inst. R 89 a. Rostrup's "Peridermium Wolffii" 

 indicates both forms of Peridermium, and is used by him from 1874 

 till about 1894 (R 90 a '^^ c. icon. 6. in the herbarium). 



Is is necessary to put down the forms of Peridermium and of st. II 

 &. Ill separately, as no means are found to determine to which spe- 

 cies of Coleosporium a specimen of Peridermium acicola in the her- 

 barium belongs, st. II &. Ill are most frequently found during the 

 period July— October; on Senecio vulgaris and others, vegetating the 

 whole winter, new groups of st. II are to be found all the year round. 



Peridermium pini Willd., forma acicola, Syn: Aecidium pini 

 Willd., Schum. no 1529, Granens Stevskaal (H. 37 '"«), Lit: R 92 k. 



Is to be found from April to July on the leaves of Pinus. 



Pinus ausiriaca. F. Lundeborg, Braendeskov, Glorup, Vejstrupgaard; S. 

 Glaena (P. N.). Pinus rigida. F. Braendeskov. Pinus echinata. S. Seholm Have. 

 Pinus laricio. F. Glorup ('"/e 74), Vejstrup Aaskov. Pinus maritima. J. St. 

 Boust (Colding). Pinus silvestris. F. Kvaerndrup, Broholm, Braendeskov, Vej- 

 strupgaard; Thorseng Bregninge; S. Sonnerup, Ronnebak (O. R.), Asserbo 

 Overdrev (May 89 and again June 96 Magius), Hellebask (Bergesen), Brede, 

 Kaningaarden, Bromme Plantage; L. Sasbyholm. Pinus montana. J. Tvorup 

 (J. Christensen) ; S. Gammelmose ! . Pinus montana var pyrenaica. J. Radding- 

 lund Plantage (C. Dalgas). 



1347. Coleosporium pulsatillae (Strauss) Lev., Peridermium Jaapii 

 Kleb., Lit: R 02 a ^^=, Kleb. 05 "I 



Pulsatilla pratensis. F. Balslev; S. Rarvig, Asserbo Overdrev (^^/lo 78 and 

 again "/^ 90, R 92 g ^s), Arresadal, Billesborg Skov. 



1348. Coleosporium euphrasiae (Schum.) Wt., Syn: Uredo eu- 

 phrasiae Schum. no 1551, Peridermium Stahlii Kleb. (05 ^*^), 0jentr0st- 

 Brandstav (H. 37 '"'). 



Quite common on Euphrasia officinalis, parviflora, gracilis, Odontites rubra, 

 pallida, littoralis, Alectorolophus major, minor, apterus. 



1349. Coleosporium melampyri (Reb.) Karsten, Peridermium 

 Soraueri Kleb. (05 ""). 



In May 1892 Rostrup noticed (94 f '") that Pinus silvestris at "Brede 

 Bakke" was particularly infected by Peridermium acicola, he therefore 

 examined the same locality in August and found all plants of Melam- 

 pyrum nemorosum to be quite red with Coleosporium. In the same 

 year Klebahn proved the relation of those two forms by culture ex- 

 periments. 



Common on Melampyrum cristatum, arvense, nemorosum, pratense &. sil- 

 vaticum. 



1350. Coleosporium campanulae (Pers.) Lev., Syn: Uredo cam- 

 panulae Pers., Syn. ^^^, Peridermium Rostrupii Fischer, Periderm. 



