G1 MNdSl'.HIANCII M. 





tis>ure-like poie- in place iif bordered pit-. The \v l-eleinent> 



in cross-section an- no lon-er round but polygonal: tip- bast 

 becomes very irregular, parenchyma grows rapidly, ba-t fibres 

 remain thin-walled and have no longer a Mraiuht course. The 

 mycelium tills the Last and lind, formini: ma-ses in the inter- 

 cellular space- : it is easiest f"und in the tangential section. 

 < >n the fall of the club-shaped sporophore-,. a scar i- left and 

 under it will be found a layer 

 of cork many cells thick ; when 

 ne\v sjiorojihores are formed in 

 later years, they seldom break 

 through the cork layer, but 

 emerge through some new por- 



tion of the bark. 



Gymnosporangium tremel- 

 loides Ifartiu 1 on Jiinif /-//.s com- 

 munis. The sjioroearps of this 

 Species OCCUr on the liranehes 

 and needles : its aecidia- /.' - 

 .->/</ in fi, nirill, i tn on leaves of 

 apple (/'///-//.s Mul ii*\. Pyrus Aria 

 and /'. Chamcu nn ^>ilnx. This 

 /,'. estelia is externally very like 

 that of <;. clavariaeforme on 

 (',;i/,/,i/,/*. The niarkiii'j- on tin- 



cells of the peridium consist of >ome\vliat wavy line.-, not of 

 >hoit rod-like markiii^s as in /.'. <-nint<i ; and the cells of t!i<- 

 ]"-iidium ale joined liy a charaeteri-t ic hin^e-joint ( Fii;. '1 '1 I , 

 in and -JIM. 



The mycelium peivmiaie> in the rind of Jiituji, /'//s comm 

 and -/. mi/in, caii-in- thick. -nin- of the twi-s and a premature 

 death of th.- di.-tal portion alio\c the >\\ellin--. The chocolale- 

 Krown Velvety SpOre-CUShiona lnvak out l>et\\een the 1 'a rk --. a le> 

 oil the -Udllell place-, aliollt the middle of April I I 1 '!-. 225, l). 



The tcl.-iiio-p'>ie> me two-Celled, the earlier formed one- liein- 

 slioit, ovoid, and >li-htly jiointed at each end. while the 



Liter ones are thinner-walled and often more -l^icjaied 

 ( l-'i-. 225, i; 10) 



Kl... 22 I !'- n!i:il l.i|iL'itlldili:il 



tlii 



: 



II' / ' / I i .111 imi, I Ml I. I in 1, I. / . 



(ft, I VI.'.. ,,. ;;|> I. I I,,.,-, //,,/ ,.,,,,. IMI.-,. ,,. I. 



