PERIDERMIUM. 



1 1 :; 



branch, the living portion- i.i' the rinu -ro\v on with in 

 vigour, and even attempt to close over the injured portion. 

 This irregular -.rowth. continued in main - l<ii years, pn>- 

 (luces abnormal cross-sections ( I-'iu. 'J4si. Tlie mycelium 

 grows ont centrifugaUy from diseased spots, >o thai the \\-itum l> 

 continue t enlarge, and the disease becomes ea-ily notice, il.le 

 on account of tin- deep chanm.'ls and distorted .-\\ ellini:- ><M 

 the pine branches and stem-. A> the disease sj.ivads in\vard> 

 into the steins, the conduciion of water i> inteiteied with and 

 the branches above such wound- dry \\\> and die oil. \\'ln'iva- 



* 

 ' 



- 



yjfiwti 



F-'n.. -J47. /' '! Hal stroma developed in 1 



I in.l ; I ! ' i-.n-li i.thcr ;in<l COD 



J the fungus Baaidia composed of much smaller cells thai 

 the needle-inhabiting aecidla. 'i.lium. (Aftoi i;. n^: . 



]/lant> >oon Miccniuli to attack, the -tni'j-le \\ith "M 

 trees ma\ ^o on for years. i-'resh infection of older >tem> 



- 



occurs generally in the higher parts of the tree, \\heiv the 

 bark is still thin. 



l'\cllidia ( -pel Illo-ollia) are de\elopcd between the I'illd- 



pareiichyina (peiiderm) and c,.rk, generally toward- the margin 

 of di-ea-ed -pots. The coiiidia einer-e from (he ruptured 

 ' 'oi k'-layr- of the balk a- a lioin , | liijuid. II Ma\i 



-late- that ihi- liquid i< -i\eii oil' in -ndi .|iiaiiliiy from 



jpeciea of Peridermiwn in -lapan, tint it i- r..llei-te.l 



eaten 1,\ (lie nati\' 



