334 



Viscaria viscosa. J. Flade!, Tolne!, Dommerby (! Exs. Sydow), Baekkelund 

 8/8 1889. S. Arresedal. 



1556. Uromyces verruculosus Schroeter, Sydow 10'^^^ Syn: Uro- 

 myces Schroeteri de Toni Syll. VII ^'\ Pragtstjernerust (R 04 a *^). 



Is very common on Melandrium album &. rubrum, but always only 

 St. II; it seems to hibernate in the host-plant, at any rate P. Nielsen 

 has several times planted diseased Melandrium-plants in his garden, 

 and the following year they were just as much infected by rust. 

 Rostrup has also often found this rust, and it has in several places 

 (f. inst. R. 04 a "') been mentioned by him under the wrong name of 

 Puccinia lychnidearum Fuckel. It is found especially from August to 

 October. Besides on the above two host-plants a very similar uredo 

 is found on the three hosts stated below, but it is rather dubious if it 

 is the very same Uromyces; on Silene Armeria Rostrup calles it Uro- 

 myces silenes (R. 99 a ''^^ 6.. 02 a ^'') which is hardly correct. 



Dianthus armeria. L. Maribo ^/s 1881. St. II. The spores prickly 24 X 28 n. 

 Silene armeria. S. Lyngby (^/g 1897 K. H.). Elisanthe nocfiflora. S. Roskilde 

 (Thomsen). 



1557. Uromyces inaequialtus Lasch, Syn: Uromyces silenes Fu- 

 ckel, Limurtrust (R 04 a =«), Lit. Sydow 10 "I 



Aut-eu-uromyces. St. I May— July, st. II July— August, sooner st. III. 

 5i7ene nutans. J. Fredericia (P. N.); F. Christiansminde CIb 75); S. Asnaes, 

 Tisvilde, Fredriksvaerk; Meren, Klinten; B. Hammershus (R 06 dd '''^). 



1558. Uromyces behenis (de C.) Unger, Smellerust (R04a=«), 

 Lit. Sydow 10 "\ 



Uromycopsis with many generations of aecidia; the same mycelium, 

 producing aecidia, will later on produce teleutospores. 



Silene venosa. J. Skive!, Aalborg (Johansen) Bejtsebakken (F. K. R.); F. 

 Skaarup (^^/b 72), Kirkeby; S. Roskilde (Thomsen), Tjustrup, Skelskar (Jeppe- 

 sen), Naestved (Jeppesen), Herlufsholm (O. R.), Vordingborg (Jeppesen); 

 Meen, Klinten; L. Saxkabing, Ourebygaard, Fuglsang. 



1559. Uromyces dianthi (Pers.) Niessl., Syn: Uredo dianthi Pers. 

 Syn. ^^^ Uromyces caryophyllinus (Schrank) Wt., Lit: Sydow 10^^°. 



It is common on cultivated Dianthus caryophyllus in hothouses 

 near Copenhagen; I found it first in 1910 (Lind 10 k), but it has been 

 known to practitioners for several years. The mycelium is perennial 

 in the host-plant, which is generally planted out in the open air du- 

 ring the summer, and during this time the fungus does not appear; 

 but as soon as the carnations are transplanted into the hot-houses (in 

 September) the brown, dusty uredosori will appear all over the plants. 

 Sorauer (98 ^^"^ has noticed the same near Vienna. 



