123 



Cystopus (Albugo). 



The mycelium is branched and Limw^ between tin- cell- of 

 liviim plants, nhtainini: it- nourishment by means ..f haust.iria. 

 The conidial cushions rupture the epidermi- >f the lm.-t. The 

 conidia or sporangia are smooth-coated, ami art- produced 

 acropetally in chains on short stalks from which the}' fall off 

 separately when ripe. The sporangia ^erminate and 





Flo. 33. I 



has i i 'i" i tli-t"i t i"H .ui'i tlii' k<nni^ ; the whitr porcellanoUB ini<li:il 



Unctly on the dark background, (v. Tubeufphot.) 



suaiiuin- sporefi \\ith twn uiiiMjiial lateral cilia. The eu--celU. 

 pmdiieed singly in each (Mi^iinium, are leitili/eil by an antliei idium. 

 The thick-walled nnspures remain eiidnved in the inteii dlnlar 

 sjiaces of the hi >st -t issue, and mi x 1 ' 1 ' 1 "' 111 ' 1 ' 11 ,- i" -^I'liiii: disch 

 .-\\armin- spoil 



Cystopus candidus (Pers.) Lev. Whit.- b'u-t. '1'ln- tun 



