. 297 



are about i_'U,u in diameter. ami form in water pi"inyeelia with 

 cMnidia. In nutritive solutions P.refeld found coiiidia produced 

 in lar-e aumbers, and multiplying by yca-i-buddini:. Tin- 

 proiiiycelial cells -ro\v out as septate branched twii^s. from 

 which coiiidia are abjointed, and after coalescing in pairs, produce 

 germ-tubes. 



Ust. violacea (Pers.). 1 < 'arnation-smut il'.ritain and I'.S. 

 America). In SHene, Viscaria, Saponaria, Jit'intlm*, ,s'/v//// //'//, 

 MitJiii-ji'iiitu, Cerastium, and /,//'// ,/<X the pollen sacs of other- 

 wi-e well-developed (lowers become tilled with dark-violet 

 -poic-,. which escape and discolour the other floral part-;. 

 Pistillate flowers of Li/i-lmi* attacked by this fun-n- develop 

 stamen- containing the smut-spores (]>. -" ). < >n germination 

 in water, promycelia of three or four cells are formed, and 

 become detaeh"d from the -pores. Primary and even secondary 

 conidia are produced, while coalescence of promycelial cells and 

 eonidia is common; but only a few of them produce ^erm- 

 tube-. In nutritive solution, according to llret'eld, everything 

 proceeds much more vi-nroiisly ; from tiny conidiophore> i.n the 

 promycelia numerous conidia are produced in succession, and 

 from these other conidia are budded off like yeast-cells till 

 nutriment fails, when they -row out to form hyphae. The 

 eonidia are longer than tho-e t'ormed in the water-CultureSj 

 and coalesce in pairs to -ive rise to longer and stronger 

 germ-tubes. 



Ust. holostei !>' l!;n-y n //.</.<.</-//.,/ ./////i.'//,////,,,. The li"-i "\ ;u i>-- 

 016 tilli-il witli spores which u'-niiin.-itr t t'niir-i'flliMl |ii-niii\ r.-liii tY<mi 

 wliidi jiailiiu .-|Mi|-iilia ;ii'- t'.inii''l. 



Ust. Duriaeana Tnl. In tin- ..v;n\ ..(' Cerastium. 



Ust. major Sc-hr..i-t. < )n >'//,, Qt ' i Tlif sporea germinate "iih in 

 nutritive -"lut imi<. ( I'.i ii.-iin.) 



Ust. seminum .hn-1. In tl ..... vrulea "f Arabit petraea in Srainlin;i\ ia. 

 Tin- spores mi germination pr"i|u'-.- -mi|>l<- h\pli;ii'. 



Ust. entorrhiza Si-hr-ift. In root-cells <>t' /'/.<"/// 



Ust. pinguicolae l.'o-ti-. < hi Pinguicula cnl<i<ir<* in Ii 



idili- bO I'-lcfeld, the jpores _ ' Tin \ na t e eijiially ill water <T 

 nutriti\e solution-,, forming thiee-celled pr"in\ celia, whii-h separate 

 t'i"iu the -pui-e and bud oil conidia from each cell. 



' Tula-in-, Ann. d. . - i . i ii. , \ "I \ M. . I > i r 



. \tkn, -on i.l,,/. Carnation 1893 "'1 utii-i -units 



!n-i|i|i lit in. \iiii-iii-.ui ( '.irn it in . i Miht. i 



