31 y 



and is destroyed during spore-formation, so thai the l>all* "t 

 s] inres are found in laruf cavities in the Imst-ti-su,.. 



In the spore-masses tin- enveloping cmupaninn-crlN ,-ire nioiv 

 trail-parent than the spores pmpi-r. Tin- latter ^rnninate 1 r;i>ily 

 in watfi. and produce pmniycelia which -m\v twanU thf air. 

 On tin- extremitifs "t' these several conidia arise, and, \vitlmut 

 l>cc<,miii'j detached, proceed at once t" -ive nil' slmrt conidin- 

 phore- with tfnuinal cnnidia. As this process is repealed 

 indffinitely, chains nf cnniilia are formed. Fusinii of conidia 

 never occurs. 



U. Kmetiana Mann. .Ma-nu>- describes thi- as destmvin_ 

 and tilling with Mack spore-p<>wder the ovaries of Tin/it ///<.<// 

 (var. arven&is). 



U. filipendula Fuck, nc-.-urs parti'-ularly on petioles ami li-af-riK-. nt 

 Sfiii-'i'ii I-'J ,'/:, ,></,/i,i. lii'i-ft-M fdund tin- -|M.II-~ germinating at'ti-r a yt-ai. 



U. ( ') italica (Sacc. .-t Speg.). In seed of Cagtanea vesca. 



U. purpurea Haxsl. ( )varif- f />i'//>f /<".-: ././//,,,',/.., ami />. j> /<////'</' in 

 Hungary. 



U. .') coralloides K<tr. In runts nf 7'///-/-/V/'.< <//<////-,/ in I leiiniaik. 



U. orobanches (Fi.). In routs of <>r<>l,ii ,,,-/,, -. 



U. (.') monotropae M-Y. ) In rm.ts ami stems of J/o//,^/-,^'" i" l'l'j'iiin.. 



U. Johansonii (('. ,//'///. Lag.). In li-avr- of ./////.-//.< /////',, /////.< in 

 Switzerland. 



Tuburcinia. 



Spnres fiirniin,^ halls as in I Vr//.sV,'.s, Imt all are cmially 

 rajialilf nf -d niinatinn. The spore-aggregations l'rm lar-c "i 

 -in, ill. -lightly thickened spots and crusts, which d> imt cause 

 very marked df format inn of the host. ( if rminat inn iv>ults, a- 

 in Till' tin, in the format inn nf a pmniycfliuni hcariim a tuft 

 of conidia at one fiid. \\'hiie cnniilia are aKn prndticed fi nm 



thf lii\Cfliiini nil the hnst-plallt. 



Tuburcinia trientalis (I'.i-rk. ft I'.i.i < I'.ritain and I S 

 Plants nf Trientalis europaea aitackfd ly ihis fun-n- 

 conspicuous in curly summer l.y tln-ir swullfii dark-c'nlntiivd 

 Stems and thfir >m;ill'-r li-hii-r Leaves, which fall pivmaluich 

 Th'- cnnidia a|i|M-.ii at a \sliit'- liiniild-like COating nn the ln\\ci 



1 I'rillji 11 . , /,'////./. ,/, I'l >'(,.. Imtiin. i/- /'/'//<'. ISM I; JIM! I'.nli-l.l 



XII. 

 MagD / '. /' lira mli iiliiirij, \\\\. 



i-ij. nat\ ' .. i >*>!. Plat< 1.. II.. III. 



