524 



3100. Cladosporium herbarum Fries S. M. Ill ^^°, Syll. IV ==», 

 Ldau VIII """ c. icon., Syn: Dematium conicum Schum. no 2171, Fl. 

 D. tab. 2277 fig. 2, Hormodendron cladosporioides Sacc, Syll. IV ^''°. 

 Aim. Greenstov (H. 37 »"). 



Its ascigerous fructification is called Mycosphaerella Tulasnei (see 

 Janczewski 94). 



Common all the year round on all parts of herbacious plants, its spores 

 are also found in the air (see Hansen 82 &. O. R. 08). On dead leaves of 

 Pinus montana it is of very frequent occurence and is called Stilbospora 

 acicola Rostrup 81 a 7, 83 d 280, Paulsen 98 ^as. 



3101. Cladosporium paeoniae Passerini, Syll. IV^^^LdauVIIP^^ 

 R02a«" 



Paeonia officinalis. F. Sl<aarup (^^/9 80); S. Saebygaard. 



3102. Cladosporium Uleanum Hennings, Syll. XP^", Ldau VIIP^', 

 R 02 a «". 



On living leaves of Myrtas communis. J. Skive C^/io 99 ! . New for Europe). 



3103. Cladosporium fulvum Cooke, Syll. IV =>", Ldau VIII «2', 

 Tomatbladenes Flejlsplet (Lind 07 c 6. 09 d). 



Massee (10 ''^°) states that this disease is originated in the new world 

 where it proves a dangerous enemy to tomatoes; I saw it rarely occu- 

 ring on plants, grown in the open, but often on forced plants in 

 hothouses and only on the foliage newer on the fruit. 



Solanum lycopersicum, common near Kabenhavn and on the island Amager, 

 also recorded from all the other parts of the country. The first Danish 

 specimens were found ''^/e 1907 (Exs. Kab. &. Bub. no 538). 



3104. Cladosporium cucumerinum Ellis &. Arthur, Syll. X ^°\ 

 Ldau VIII *^°, Syn: Scolicotrichum melophtorum Prill. &. Delacr., SyU. 

 X *'', Ldau VIII ^'', Cladosporium cucumeris Frank, Z. f. Pf. vol. 

 Ill =», ? Chloridium polysporum (Wallr.) Sacc, Syll. IV ^", Ldau 

 VIII ^^^, Macrosporium melophtorum (Prill. &. Delacr.) Rostrup 93 k, 

 02 a ^", 04 1 5. o, 06 n; Agurkernes Gummiflod (Lind 08 c c. icon.). 

 Lit: Reuter 06. 



A true parasite and very noxious for the fruit of Cucumis sativus in the 

 hothouses. Common, from May to September. 



Polythrincium. 



3105. Polytlirincium trifolii Fries S. M. Ill ^«^ Syll. IV ^'°, Ldau 

 VIII '^' c. icon., Syn: Dothidea trif. Fries S. V. ^^ R 71 '\ KWer- 

 Skorpesvamp (R 99 c '" 6. 02 a ^^^ c. icon.). 



This pest is most commonly indicated as Phyllachora trifolii, although 

 its supposed ascigerous stage is very seldom found (see Cooke, Gre- 

 villea XIII '^). 



