MKI.AMI'soUA. 



360 



and cause 'Teat damage. The vellow 



O 



-ori appear in lar-e numliers on the 

 lower surface of the leaves, which 

 wither prematurely, especially toward- 

 the ends of shoots < Fi-. i'nl). The 

 teleutospores hibernate on fallen leaves, 

 hence such should he raked together 

 and hurnt. X////..- ^/i/tn.^i is found 

 to 1^ much more sensitive to attack 

 than X. j>/-t'i,t<>s<i x iJiiji/niv/tJi'x, who.-e 

 leaves are more hairy, a property 

 which seemfi to protect them from 

 -pores. 



The following species have only 

 iin-dospores and telento-pmv-. related 

 Caeoma-foTms hein^- unknown: 



M. lini ( I'ei-.) i liritain and C.S. 

 America). Flax-ru-t. The uredo- and 

 teleutospores occur together mi Linmn. 

 Thi- mav inllict serious damage in 



/ 



tit-Ids of cultivated tlax. 



M. sorbi << >udem.). ( )\\ leaves of 



/'/////x ^Im-iifHiri'i and /'. ////// itin/i.-i. 



Dietel 1 has recently placed thi.- 

 the -in-le specie- ( .| a m-w 'jeini- 



are at tir-t one-celled, hut hcfm,- 



the death of the ho-t-lea\e> they 



lividc into foin- < rai'ely tin 11-. 



h of which -i\-es off a sterigma 



with a -inule -]io]idium. In tli 

 point- ihe spores follow the develop- 

 ment of Coleosporium : the s|imidia. 



however, ale (jllite dilfelvllt. they ,i|. 



spindle-shaped, L"_'-LT/X Imi- and s/ ( 

 broad. 



I , ' . !' | 



I Up, III 'III 



1 /;. , >>,/, /. /. /,, //. / 396, p. 401. 



J \ 





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