KHYTISMA. 



243 



is C'>iu]>k'tril. Iii tin- following -prin.u. tin- sclerotium-spote 

 on the fallen leaves have become thicker ami superficially 

 wrinkled. At this stage the apothecia are produced, ami 

 dehisce by tine elongated fissures ; they contain clul>-sh;ij.rd 

 asci and thread-like para]ihyses with hooked ends. The thread- 

 like ascospores are ejaculated with considerable force, and reach 



KM., us. /; i tpotheola] cushion! on i> .ii oi 



i: tir-t -niiiiiii-r. .1. l.i'it-ii"X { Aetl - with tin- in .' 



! rii-liii.i. in tli' ..1-i-iiinl .-iiiiiini'r, with their rli:n;u-lri i-.ti<- 



w:ivy iiiiirkin^. (v. Tuliciif .l.-l.) 



inatiii-ity in May ur .liuir. Ai-ri.rdin^ in Clebahn, 1 the 

 liavr a liiucila'jiiiuiis innulii am-, Inn llii- d068 imi threw nuich 

 li'jht nil the problem <'f hu\v (hey reach llie lca\c> nl Irccv; 

 wind, howi-vci', \\uuld seem 1" be ihea-eiit l'i>r dHlributinii. In 

 thre- weeks al'tei- infection, leaves >h<>w v"" u > 1'"'^ : '" >'i-ht 

 \\--ek-~ ihe jiycnidia appear. 



Beta ' > ! u,,n, \.\ HI., ivu. |, 



