85 



plant (R 91 b). The affected specimens of Githago are low-stemmed, 

 and all parts of the plant even the petals are peculiarly curled (R 

 95 a ^''^). It seems to be very rare. Besides the two Danish localities 

 I have only seen it recorded from Caucasus (Jaczewski 01). 



Agrostemma githago. S. 0rsl0v (P. N.); Maen Hunosagaard (Exc. ^^/e 93). 



178. Taphrina tormentillae Rostrup 85 a "', Syn: Exoascus defor- 

 mans (Berk.) Fuckel var. potentillae Farlow in Ellis. North- American 

 Fungi 1879, and in Proceedings of the American Academy of Arts 

 and Sciences XVIII p. 84 1883, Taphrina potent. Johans. 1885 c. icon., 

 R 91 b ^5^ Exoascus potent. Sacc, Syll. VIII =^^ Magnusiella potent. 

 Sadeb. 



The name given to it by Rostrup is the first one applied to it as 

 species name, and accordingly it has to be preferred to that of Farlow. 

 Its appearance is very similar to that of the preceding species; its 

 mycelium either penetrates the whole host-plant or a single branch 

 of it. Rostrup originally classified it under Physoderma (in herbario). 

 It is very common and is found in several other places than those 

 here mentioned. 



Pofentilla erecfa. Laese!; J. Klitmaller, Lagster!, Naesborg!, Langaa, Silke- 

 borg, Sdr. Omme!, Klelund Plantage; F. Hesselager, Skaarup; S. Fredens- 

 borg; L. Stokkemarke; Falst. Liselund (^/a 76); Maen Liselund; B. R0, Almin- 

 dingen. 



179. Taphrina minor Sadeb. 1890, Syn: Exoascus minor (Sadeb.) 

 Sacc. Syll. X ™. 



In the leaves, May— July. 



Prunus avium. J. Viborg!, Silkeborg!; S. Hornbaek, Teglstrup Hegn, Furese 

 (22/5 1896), Virum ! , Borreby (Exc. 22/e 07). 



180. Taphrina cerasi (Fuckel) Sadeb., R 93 o^^ R 02 a "^^ c. icon., 

 Syn: Exoascus cerasi Fuckel, Syll. X*^ Exoasc. Gilgii P. Henn. &. Lin- 

 dau, Syll. XI "^l 



Produces large but not thick witches-brooms, rather common on 

 cultivated and wild cherry trees (R 91 b ^^''). 



Cerasus avium. F. Tangegaard, Skaarup; S. Hornbsk, Vedbsk, Dyrehaven, 

 Roskilde; L. Stensgaard; B. Almindingen. 



181. Taphrina insititiae (Sadeb.) Johanson, R 91 b 6.02 a "^^ Syn: 

 Exoascus insit. Sadeb., Syll. VIII '", Wt. II ^ Exascus deformans par- 

 tim. R 79 b "i^^ 6. 83 d "°, Troldkoste paa Blommetraeer (R 93 o ^'). 



Produces large witches-brooms on Prunus domestica and insititia; 

 whether it be the same species found a few times on leaves of Pru- 

 nus spinosa and padus is still disputed; the patches produced by the 

 fungus in the leaves of the said host-plants are always so small and 



