298 



1393. Gymnosporangium confusum Plowr., Syn : Roestelia mes- 

 pili de C, Roestelia cydoniae Thiim., Kvaederust (Lind &. Ravn 10 ^''). 



Jak. E. Lange has told me that Gymnosporangium on Juniperus 

 sabina in his garden at Dalum did not infect Pirus communis gro- 

 wing close by; on the other hand Crataegus monogyna was so den- 

 sely overspread with roestelia that "a cloud of dust was always is- 

 suing from it as from a ripe Lycoperdon". The nearest part of the 

 thornhedge was most severely affected; about 200 m from the Juni- 

 perus the attack ceased. 



Rostrup mentions (02 a ^''') that in Denmark this roestelia has been 

 found on Sorbus fennica and Pirus prunifolia; it must, however, be 

 noticed that the leaves of the latter, contained in the herbarium, origi- 

 nate from 0rsted's herbarium without any statement of the finding- 

 place, and the determination of the host-plant is also very dubious. 

 Sorbus fennica has been gathered in Lolland in the garden of Aalholm 

 Castle July 31. 79 and may, no doubt, be referred to this species; 

 only spermogonia are present. 



Mespilus germanica. S. Hassede (R 88 c); L. Aaliiolin (^''/t 79). Cydonia vul- 

 garis. S Vemmetofte Have (only spermogonia). Crataegus monogyna. F. Da- 

 lum (Jak. Lge &. ! Exs. Sydow). Juniperus sabina. Dalum (Jak. Lge). Juniperus 

 virginiana. J. Horsens (A. P. Andersen); F. Dalum (Jak. Lge). 



1394. Gymnosporangium juniperinum Fries S. M. Ill ^''^ Syn: 

 Tremella juniperina L. Spec, plant. 1753 p. 1625, Tremella conica 

 Hedw. f. 1802, Gymnosporangium conicum (Hedw.) R 82 b ° £^ 83 d, 

 Lycoperdon corniferum O. F. Miiller in Fl. D. 1780 tab. 838, Roesteha 

 cornifera (M) Rebent., Aecidium cornutum Gmlin 1791, Schum. no 

 1506, Roestelia cornuta (Gmhn) Fries S. V. "", Hornet Stevskaal (H. 

 37 '"'), Baevre-Hornrust (0rsted 66), Horn-Bsvrerust (R 77 b ^"), 

 Hornrust (R 82 b), Enens Bsvrerust, Rennens Hornrust (R 02 a ^'^ 

 c. icon.), Kikbaer (R 75 ^^). 



St. Ill occurs both on leaves and branches of Juniperus communis; 

 very common; it was formerly used as a drug against inflammation 

 of the eyes and against rheumatism (see Linne Flora lapponica ^'' &. 

 Pauli 61 ^''^). Rostrup recommends (83 d ^'"') the planting of Sorbus 

 aucuparia and Juniperus communis together in gardens for decoration 

 as he thinks the yellow-pied leaves ought to be preferred to the uni- 

 coloured green ones. 



It is impossible that it should be this fungus which is delineated 

 in the Fl. D. tab. 1378 fig. I as Tremella clavariaeformis because, in 

 the text, it is stated to have been found "in stipitibus Pteridis aqui- 

 linae"; it must surely be Typhula quisquiliaris (Fries). 



Sorbus aucuparia. Lassa (J. F. J.); J., F., S. Hellebsk (=0/7 1864 A. S. 0rsted), 

 L., Falst., Maen, B. Juniperus communis on the same places. 



