126 A MoNOGR 



/. 2j (sub Calodadid). 1851; Cooke, Handb. Brit. Fung. 2 : 

 649. 1 87 1. 



Calodadia coniata Lev. ; Dietr, Blick. Crypt. Ostseeprov. 336. 

 1856. 



Podosphacra coinata (Lev.) Quel. Cham. Jur. Vosg. 3 : 106. 



1875. 



Microspliacra ciconyini (DC.) Sacc. Syll. Fung. I : 11. 1882 ; 

 Wint. ; Rabenh. Krypt. Fl. Deutschl. i^ : 37. 1884; Schroet. ; 

 Cohn's Krypt. FL Schles. 3: 242. 1893; Jacz. Bull. THcrb. 

 Boiss. 4: 749. 1896; Oudem. Rev, Champ. Pays.-Bas. 2; 90. 

 1897. 



■ 



Exsicc: de Thuem. Fung, austr. 1238 ; Sacc. Myc. Ven. 892 ; 



Syd. Myc. March. 199, *4335, "^4336; Fckl. Fung. Rhen. 692 ; 



Cooke, Fung. Brit. Exsicc. 94 ; Rab. Fung. Eur. 438, 1324, 2319; 



Rehm. Ascom. 248; Rounieg. Fung. Gall, exsicc. 3224 ; Vize. 



Fung. Brit. 196 ; *de Thuem. Myc. univ. 847 ; *KneifT. & Hart. 



PI. Crypt. Bad. 55 ; Wint. Fung. Helvet. Supp. 84 (in Herb. Earle). 



Usually hypophyllous, very rarely amphigenous ; mycelium 

 evanescent or nearly so ; pcrithecia more or less densely gre- 

 garious, 85-1 38 li in diameter, cells obscure, about lO/i wide ; ap- 

 pendages 6-14, 2^2-0^2 times the diameter of the perithecium, 

 flaccid, colorless, thin-walled above, becoming thick-walled to- 

 wards the base, aseptate, smooth, fasciculate and forming a flaccid 

 *' pencil " which lies on the surface of the leaf, apex variously 3-5 

 times dichotomously, or sub-dichotomously, branched, branchnig 

 variable, lax or close, tips of ultimate branches usually straight ; asci 

 ^~y, ovate to broadly ovate, 50-60 X 30-38 //, with a short stalk ; 

 spores 3-5, 20-23 X 10-12 n. 



Hosts. — Eiionynius Enropaciis^ E, verrucosus (294). 



Distribution. — Europe : Britain, France, Belgium (47) (209), 

 Netherlands (263), Germany, Switzerland, Italy, Austria-Hungary, 

 Denmark, Finland, Russia, 



A well-characterized species in the fasciculate habit of the 

 long appendages (which form when mature a flaccid ** pencil''), 



F 



and the much-branched apex. 



In other characters M. euonyini is very variable, especially as 

 regards the manner of branching of the apex of the appendages. 

 The branching is sometimes somewhat lax, and the apex is 3 

 times dichotomously divided, with the primary and secondary 

 branches more or less recurved, often strongly so, and even the 



