CONTEIBUTIONS FEOM THE WISLEY LABORATORY. 117 



Distribution and Synonymy of the Fungus on Parsley. — The 

 typical form of the fungus, Septoria petroselini, occurring on parsley 

 has been known for a long time. It appears firsl: to have been described 

 by Libert* under the name Ascochyta petroselini Libert. In 1840 

 Desmazieres i described the same fungus under the name Depazea 

 petroselini Desm., and later | sent out specimens under the name 

 Septoria petroselini Desm. This does not exhaust the synonyms, for 

 in Klotzschii Herhariwm vivum Mycologicum, Ed. II. Ser. I. (1855-58), 



Fig. 62. — Septoria petroselini var,. apii on Celery. 

 A, portion of leaf with fruit bodies of the fungus ( X 10) ; b, one of the fruit 

 bodies isolated showing the spores issuing from the opening at the apex, 

 c, vertical section of the leaf showing {p) one of the fruit bodies sunken in the 

 mesophyll (m), and the hyphae {h) of the fungus running between the cells. 

 T), spores ; and e, a spore more highly magnified. 



No. 560, Eabenhorst sent out the same fungus on parsley under the 

 name Spilosphaeria petroselini Eabh. This typical form has been 

 found attacking parsley in France, Belgium, Italy, Germany, Austria, 

 North and (according to Saccardo§) South America. 1| 



* Libert, Exsic PI. Crypt. Ardii, No. 252. 



t Desmazieres, Ann. Sci. Nat. Bot. (1840), p. 10. 



+ Desmazieres, Exsic. Plantes Gryptogames de France, No. 674. 



§ Saccardo, Sylloge Bungorum, iii. p. 530, No. 323. 



II I do not know upon what record the last-named country is given by Saccar- 

 do, but there are specimens in the British Museum Herbarium as follows from the 

 other countries named : Exsiccata : Krieger, Fungi Saxoniri, No. 1387 ; Desma- 

 zieres, Plantes Cryptogames de France, Ed. I., Ser. I. (1825-51), No. 1174, and 

 Ed. II. Ser. L (1836-51), No. 674; Sydow, Mycotheca germanica (1903) No. 180; 

 Briosi et Cavara, I Funglii parassiti delle Piante Coltivate od utili, No. 143 

 (Pavia, Italy); D. Saccardo, Mycotheca italica (1902), No. 1137; Sydow, Myco- 

 theca marchia (1880), No. 293, and (1887), No. 1752; de Thumen, Mycotheca uni- 

 versalis (1876), No. 1296 (Parma) ; Rabenhorst, Klotzschii Herbarium vivum 

 Mycologicum, Ed. II., Ser. 1. (1855-58), No. 560 (Doemitz) ; Libert, PL Crypt. 

 Ardii, No. 252; L. Fuckel, Fungi Rhenani, No. 450; de Thumen, Fungi Aus- 

 triaci (1873), No. 1196; Seymour and Earle (1892), No. 441 (New Brunswick, 

 N.J.). 



