AKrlliir.M-l'i'KMs. 411 



Aec. Peckii !>< T"iii ami Aec. oenotherae M<.nt. (>n leave- ..f api 

 of Uci"itl'<-i-'i. 



Aec. sambuci Sdiwcin. On leaves and stem.- "t SambuciU. 



Aec. ceanothi Ell. et Kt-11. 



Aec. abundans IVck. On specie-, i.t" .v////</'//./-/V.//'y. </..-. 



Aec. cephalanthi Seym. On (.'j,/nif<i,>t/,,i.-i occidentals. 



Aec. erigeronatum Schwein. On main spe.-je- nf /.' 



Aec. asterum S.-h\\ rin. On specie* nf .!.<.7<v and >',.//./ 



Aec. polemonii 1'eck. ( >n Polemonium and /'/</>. 



Aec. apocyni Sclnvt-in. On leaves nf Ap<.>i-ii"i<>. 



Aec. Jamesianum IVc-k, and Aec. Brandegei Feck. On leave- ..t' -pe, -!- 

 <>f Asclepias. 



Aec. myosotidis lluir. ( >n li-itve> nf J///..\o//'.v verna, etc. 



Aec. plantaginis ( V>. On lea\e> <.f >pe.-ie^ (1 f /'/,/,,/,/,/,, in Kiiinp,- and 

 America. 



Aec. pentastemonis Si-li\\eii.. ( n species nf Pentstemon. 



Aec. giliae I'eck. 



Aec. lycopi Oeianl. ( >n Leaves and >li-ni> nf /,_'/'"/"'.- CMrOpa< 



Aec. iridis (ieianl. 



Aec. macrosporum I'd k, and Aec. smilacis Sih\\cin. < >i. species 

 Smilax. 



Peridermium. 



Peridermium pini (Willd.) 1 is I'uund nil ]iiin/-nvr> in Kiiniju-, 

 P.ritain. ;nnl 1'nii^l Stairs. \ teleutospore-stage "f this has not 

 aa vet been iil'-ntitii-il, alilmu-h a \c\-\ similar species (Peri- 

 dermium Cornui Rostr. et Klili.i. also M-ruiTinn ..n tin- liark l 

 -s. ha- liffii provi-il to ha\r as n- teleutospore-form ^ '/<//"///*//// 



, H III.' 1 



Tln- mv'-''lium '!' I'i /'ill' i-iiiii/ in [ini'i livf- inim fllulai ly in 

 tin- rind, hast, and wnml nf /'//(//> sylvestris, /'. Laricio, J'. 

 /.s/s, /'. maritima, and /'. ///<>/>/"//". It H\T- and r\tcnds 

 tin- stria fur yi-ars, atlackin^ llic li\in- cells and 

 - nutriiiii-nt iVmn tin-in hy littli- liaustnria. Thr cell- 

 of iiairiirhymatoi.s tissues arc tlm-r iim-l jcncrally attacked. 

 and the inyceliuin ha- heen I'miiiil In penetrate almi- the 



inediillai -\ rays tn a depth <!' LOc.m. int the wood-ra 



The e.-lls nf altacked parts ld-e their imnnal ciniteiit inclndin_ 

 -larch, and secrete crude turpeiit iiie in such i|iiantiiv a- ti. 

 ciiinpletcly jienneate their \\all.-. and even I" l'<>nii drnp-. In 



tlli> \\aV Jii.ltinll- nl' the Win id hcci.llie C(illl]i|etel\ -atlllatcd 



I!. Iliitl., \\'i'/it/'/' Ki'i/il.h' it' n </. \\'ii/illMiinni in. 

 -' Kli-lialin. Btrichl( '/. l-n'-ti, I'l'fii, ' 



