il I. F.I: 1 1 \ 



- 



The black spore-powder i- developed as an e\ il-Min-lliiiu ma-- 

 in the ovaries of the host, \vhicli arc completely de.-troye-d except 

 tin- outer coats. A- a rule every -rain in an car i- attacked. 

 The smut is at first oily or greasy, but -i-adually dries up [<> 

 to] ni a hard stony mass enclosed in the fruit-ulnine- and 



I'n.. 1''.7. . : I 



iin>i>t air; .1 .short i'i"in\ . -.'lium is .1. v.-l..p. .1, an. I !. u- :i 



\'ll nf r..lii'H.i (-lirl'ii:i! l' wlilfli I 111 



IMP f conidia, germination, and development of 



Iso -ir '\vii. />'. l 



!' 1 \\ itll |'l"ln\ CM Ha wliii'li . l.'li_ it i.' till tin- 

 \v:i - ulu-rc tln-y f'Tin 



iirciinvri-li.i arc ~.-|.t.i!'- an. I tin- |i! i-iu.i ) 



^"- ' jrounger cells 



: I 



a with .-iMiit-s'rain-- iinli- 

 I lil.-irk. 'I 'I -i>ik./- 



tWO MI.Ut-_'|- IIII-. 



which, as w.-ll ;i> th. 



- in tin- 

 ..ri^'inal ..v n-y wall, ojn- -nnit- 



lon ihowe tii.- MI- 

 t. i-i'.r I'.ll.-'l w nil i.l ick spoi 



l.ut tli" ..vary wall -till in' 



deL) 



pal The sjioiv>, thcret'"iv. d i escape aa du-t on tin- 



field, but remain in the head- and are garnered with the emj.. 

 Smiiity ear- are ea-il\ di-t iirjui-hed on ihe tield by iheii 



st in' erect p'.-itioii i-.wai-'l- harvest-time, .1- i-umpared \\ith the 



inoic or le-- noddin- lieallhs ears; their lloivt^ al-o lir limn- 

 away IVoin the a\i- of (In- rar, l he cliall-'jliinie- are niiv -plead 



