ENTYLOMA. 



313 



Still to mention are : 



E. EUissi Halst., known as "white sraut."^ It inhabits spinach 

 (Spinacia oleracea), discolouring the leaves. 



E. ossifragi Rostr. on Narthecnim ossifragum in Denmark. 

 E. catenulatum Eostr. on Aira caespitosa in Denmark. 



Fic;. Id'J. — Eiityloma Aschcrsoaii. Germin- 

 ated spore with septate promycelium ; one 

 promycelial branch remain.s rudimentary, 

 the other (to left) has produced two branches, 

 one of which has elongated and bears a coni- 

 dium. (After Woronin.) 



Fio. l~Q.—Entyloma Magnusii. Germin- 

 ated spores ; the promycelium of one shows 

 a whorl of three branches with apices 

 elongating to form germ-tubes ; the other 

 shows two, out of three, germ-tubes giving 

 off branched sporidia (conidia). (After 

 Woronin.) 



E. leproidum Trab.- \Oedomyces leproides (Sacc.)]. Diseased beet-root 

 exhibits irregular outgrowths, which enclose spaces filled with the brown 

 spore-powder of this fungus. 



E. nympheae (Cunningham) Setch.-'' on various species of Nympliea in 

 America, Africa, and Europe. 



Melanotaenium.^ 



spores unicellular in patches on an intercellular mycelium 

 lying deep in the host-plant; they have a thick dark brown 



1 Halsted, Ntw Jersey Arjric. Exper. Station Bxdletin, No. 70, 1890. 

 -Trabut, " Sur une Ustilaginee parasite de la Betterave." Compt. rend. 

 cxviii., 1894. 



^Setchell, Botanical Gazette, 1894, p. 188 (with illustrations). 



■" Schroeter, Kryptofjam. Flora v. Schhsien. Woronin, Senckenberg Gesell, 1880. 



