281 



classified it under Chrysomyxa (88 b ^^*) the year after Schroeter and 

 independently of him. 



Empetrum nigrum. J. Viborg, Ved S0, Nonbo Mose (Gad), Feldborg, Holste- 

 bro (Jeppesen), Trudsholm (July 1869), Addit, Himmelbjsrget, Silkeborg, 

 Herning, Borris Hede (F. 6^ W. 08), Bordrup; F. Hals by Hofmansgave ; S. 

 Rarvig, Hornbaek Plantage, Lyngby Mose!; B. Hammeren (Neger 06). 



1343. Chrysomyxa cassandrae (Peck <S^ Cooke) Tranz., Syll. 

 XVII ^", Syn: Uredo cassandrae P. 6. C. in 30 Rep. St. Mus. 1878 

 p. 54, Syll. VII ''''', Caeoma cassandrae Gobi 1886, Caeoma cassandrae 

 Rostrup 88 c. Lit: R 02 a ^^^^ Liro 08''«= 



Is, like the preceding one, found almost exclusively in st. II; Liro 

 supposes it to be a heteroecious species of rust having its st. I on 

 Picea. 



The infected plant had been introduced into the Botanical Garden 

 in 1886 from Finland where this fungus is very common. 



Cassandra calyculata. S. Botanisk Have (June 87 E. W.). 



1344. Chrysomyxa pirolae (de C.) Rostrup. 



Rostrup has been the first to find its st. Ill on hibernating leaves 

 (May 1880) thus being able to classify it under its proper genus 

 (Thiim. Myc. no 1827). On basis of observations from nature Rostrup 

 has considered (81 c ^^^) its st. I to be Aecidium conorum Reess, which 

 is somewhat probable, but not yet proved (R 02 a '■"*, Liro 08 ''^^). Is 

 most frequently found in April and May; its mycelium is perennial 

 in the subterranean parts of the plant, and the uredo will appear 

 regularly on the under-side of all the leaves. P. Nielsen tried to plant 

 infected plants in his garden, and they continued to reproduce uredo 

 every year (see also Liro 08 ^^). 



Pi'ro/a minor. J. Sadal near Viborg!, Rindsholm (Gad), Sneptrup (D. B.), 

 Snaptun!; F. Brasndeskov (Thiim. Myc. no 1827), Sortebjaerg Vsenge, Kling- 

 strup (^/5 68); S. Slagslunde (Feddersen), Ravnholt (Raunkiaer), Hareskoven 

 (A. Bruun), B. Sandflugtskoven ! (Exc. ''^/s 11). Pirola media. B. Almindingen 

 (R 06 dd ""). Pirola rotundifolia. S. 0rsl0v (P. N.). 



1345. Chrysomyxa ramischiae Lagerheim 09^^ 



Pirola secunda. S. Tisvilde Hegn (July 1895 Vald. Christensen). 



Cronartium. 



1346. Cronartium ribicola Dietrich, Syn: Cron. ribis 0rsted (67 c), 

 Cron. ribicola Rostrup (in Catalogue des plantes, que la Soc. bot. de 

 Copenhague peut offrir 1871 see Magnus 74^^), Cron. ribesii Woro- 

 nin 1870, Peridermium strobi Kleb., Aecidium strobi Kleb., Aecidium 

 strobi Kleb. (R 1906 dd "'), Peridermium Klebahni Rostrup (90 a "^ 



