i ( < i 



unicellular conidia, at first white, later -ivy. It is rhese 

 \vhidi cause the fine jifrforations of ih,- periderm of tv. 



Yet another form of pycnidia, previously known as 

 riffisi (A\vd.), (Nil. 4). This, like tin- last, lnvaks through tin- 

 corky layers of tin- l>ark. It has a peridium compi'Si-d "I loose 

 pseudoparenchyma and, without the intervrnti' 

 s two-crllfd cniiidia of a dark ^ 





:lll i>"l:lt< .1. ./. l!j ii-ul.ltili. 

 \\ltll tin- iniiol- liii-liiln-.-iliu ;i> yet miru]>t lirt-'l, lull 



ruptured o.at. (After v. im,, uf.) 



colour. Tlii- tni-iii. howcvfi-, I tailed to tind in tin- coursi 

 my investigation, althou^li I looked iln-oii-h much niaturial. 

 these various form> of fructification \\e have: 



\. I'Vi MI'IA. 



I. \\ llit'- I I ;ill-|.:il fill, >ln;i|l, Illlirclllllar l-<'lli(li;i nil |..||- cn|| |l lie >| i||, ,1 r- ; 

 (" KM',- n|| til,' -trn|||;i. 



/< Kii,-ln>i-(l iii i-a\ it ic> in tin- ~t mni;i : 



("i [n cavities as yet n"t M-.-mMiirj p\,-Miili;i. 



(/i) Iii cavities \\itli linn tl.iik-rn|niin-,| |iri-i|iln i \ . 



Kni-|n>r,| in dark-coloured ti, pycnidia, with a peridiuni ol 

 doparench} m.-i. 



-'. |!M\MI, iiiiii-i-||iil:ii , o.iinil rnnitli.-i. in littl,- ln-n\\n \>\ i-ni'li.i I' 



