PROTOMYi'KS. 141 



In nutritive solutions germination does nut take place in tin- 

 way, but is replaced by a yeast-like sprouting of the sporangia! 

 spores without disjunction of the sprout-cells. 1 



According to Meyer, these sprout-cells produce elongated 

 liypha-like cells with which, however, he did not succeed in 

 infecting a new host-plant. He also found that spore-conju'_ r a- 

 tion takes place better in water than in nutritive solutions. 



Pr. fuscus, 1'k., occurs on Anemone in America. 



Pr. pachydermus, Thiim., occurs on Compositae esp. T<> //<!' //>. 



Pr. radicicolus, Zopf. 2 A form similar to /'. macrosporus, 

 but furnished with coiled haustoria. It lives intercellular in roots 

 and kills the cells, without, however, causing external hypertrophy. 

 Zopf found it in roots of Stiftin <'}> i-i/^i,it]in and Ar]iill,.-i 

 li/j>i-l<it<t in the botanic garden of Halle, but the plants were 

 not killed, because their roots were not all attacked. 11 



Endomyces. 



The asci contain four spores which do not produce conidia. 

 The sterile hyphae give rise to chlamydo>porcs and an oidial 

 form of spore. 



Eil'>m !/'* <lt<-li>ii-nx lives as a parasite on sporophores of 

 Agaricus m< //< //>,. 



According to Ludwig, species of Eiulomyces have much 

 to do with the slime-flux of trees, which contain in addi- 

 tion other forms of (lymnoasei, <.;/ &i<-c1tni'uii(>/r,x I.mliriijii, 

 Ascoidea rubescens, etc. \\'e shall here devote some space to 

 the general consideration of the slime-tlux of living stem-. 



This pheiiMinciiMii remained uninvesi i-atcd until Ludwig took it 

 up and directed attention to it. He found several species of 

 considerable <y>tematic interest, the pathological effects of which, 

 however, reijuire further investigation. 



1 lin-fi-lil. Schimmdpilze, II. -ft i\., is'.il. 



-'/..[it. /.Hi- l\< 11 ni n'i ~~ '/. I ii/-t<'in-l:i-uiil;h. niederer '/'A/./. n. l\ili,< en, l xss . 

 do, \\ ]i<> i a nk-; tin- Prut ..... yi'i'ir- ;I|,,IIL.' \\ it li the Chytrldiaceae, iiu-ln<li > 



a l;ilL-'- liiiiiilii-r "1 f|n-i-ii--. M.rjuus placrs I'l-i'li'iin; \ 



not. I'ni'iii. KniKjr- -< //< I, '-in -ii. |s;i'J) in tin- ncL'M'"iirl ..... >1 i-t 

 tli-- I'li;,'-'. n, . It, In. \\i-\n-, p. . eptate nivo-limn an.' 



\\liii-h an- i ii' I'.-i-il in ,-i , lli.it tlu-y n-i-.il! ..f tin- I'n . lim :u-, i . 



nua n.iini-il ii / '/ , dim i on /'// ../"/' - ' 



1 IMil In- ' -ulll'll-i-.l \\itll til'' .-|.ri-ii-s , - / 



. ' ' '.</" iiilrinin 



