160 J LiM). 



siiul 1111(1 slc'ls (It's horstenrormigt'ii Anhanges entbehren; aller- 

 dings liabi' ich (lie 2 — 1} Scheidewände, welche Rostrup angiebl, 

 auch nicht beobachten kcinnen". 



(Allescmkh l^ Hennings: Pilze aus dem Unianakdistrikt, Biblio- 

 Iheca Botanica Heft 42, p. 52). 



In reference to this I would say that Karsten has probably 

 only described his Septoria caudala in Hedwigia 1884 as a new sj)ecies 

 because he did not know Hostrup's description of Se/;/or/a cercos/)cT/na 

 in Sv. Velensk. Akad. Förh. from the preceding year. Saccardo, 

 Rosriu p, JonANSON and Vesterc.ren also quite agree as to the 

 identity of these two species. 1 consider it much more likely, that 

 Allescher, having noticed neither the septa in the sporidia nor the 

 Cauda and having found them shorter than stated in the report and 

 with difierent perilhecia. was dealing with quite another fungus, 

 which he wrongly called Rhabd. cercosperma, and I am most inclined 

 to believe this to be Rhabd. Drabae (Fuck) = Septoria semilunaris 

 Johans, of which he says: 



"Mir scheint der Pilz mit Rhabd. cercosperma identisch zu sein". 

 (I.e. p. 52). 



The spores (stylospores) of this species (form-species) are com- 

 pletly different from those of all other Rhabdospora and Septoria- 

 species. At the base they are rounded, outwardly pointed and finally 

 they end in a long capillary tail. When unripe they are furnished 

 with oil-drops, when older with up to three dissepiments. The 

 perithecia are of varying size yet larger than is common in the 

 Sphaerioideae and collapsed, with protruding ostiolum (see especially 

 Vestergren's excellent description and figures in: Eine arktisch- 

 alpine Rhabdospora, Bib. till. Kgl. Vet. Akad. Handl. Bd. 26. Afd. III 

 No. 12, 1900). 



It does not, however, differ essentially from the form-genus 

 Kellermannia Ell. & Ev. in Journ. of Mycology 1885 p. 153. Sacc. 

 Syllog. X, p. 337, so that I must move it from Rhabdospora to Kel- 

 lermannia. In this connection I may mention, that a fungus, which 

 I found in Jutland on dead stalks of Rumex acetosa and which 

 E. Rostrup classified for me as his Rhabdospora cercosperma (distri- 

 buted in Kabat & BuBAK Exsiccat: Fungi imperfecti exsiccati as No. 

 426), is identical with one found by Ove Rostrup, also on Ramex 

 acetosa, near Copenhagen and published by E. Rostrup in: Mykolo- 

 giske Meddelelser IX. Botanisk Tidsskrift vol. 26, p. 312 as Keller- 

 mannia Riimicis Fautr. & Lamb. 



Still I do not venture to say — until I have had an opportunity 

 of seing more material of this fungus, the sporidia, and perithecia 

 of which according to Vestergren vary very much in size — if 



