10 



On Qiu'irtis (i(/r/foh'<t, Ciililoiniii (Ifiiikiicss). 



A very ilistiiict iiiid cliMriictcristic spccirs. Tlu' liliiiiiciits oC 

 tilt' iiiyri'liiiiii iiic cxcccdiiitily nilmst. roriiiiiiti' ;i rlciisc, ('(diorciit 

 sti'ntiiiii. Tlic |M'rifli('cia iuv iiiilicdih^d in tliis wooly mass, Itiit when 

 (•iiicl'nily s('|taiiit('d appeal' to lie alisoliitely \vitli<»nt appendages, 

 Tlie lliick llireads ol' the niyeelinni do not adhere lu the |M'i'ithecia 

 when tJiiis translerreil to a iniero«eopie slide, 



KRVSIPHK. (H^'dw.) 



r,cv. Aliii. Si'i. N'nt. Sur, III, 'runic XV. 



F*e;'ithe('iuiii containinu' several asei. Appemlau'es simple, tliroads 

 siniilai' to and i're(pieiitly interwoven with tlie niyeeliMiii. 



E. Lirioilnuli-i, Sclnv. Syn. N. Am. p. 'HM. 



On leaves and sneenlent stems. .Mycelinni almndant. dense, 

 white, persistent. I'eritheeia developinu' late, mostly after the leaves 

 have fallen, riithei- larue, 1(10 /< or more, delieate. Ihiii-walleil. ini- 

 Ix'dded in and partially covereil liy the ilense mycelium, retienlalions 

 small and indistinct: appendau'es several, liyal' (C, rather lonii'. much 

 interwoven with the mycelimn. .\sci several, ein'ht or moi'c. Sporidia 

 (i-S, small. 



On Lifintlcinh'on titllpifcni. Svw YorkllN'ck) to Illinois and 

 prolialtly westward. The species is not nncomnion on the host named, 

 thonu'li it a|»](ears to lie slow in frnitinsr. May lie identified liy its 

 ahnndant, while mycelimn, especially on the yonn<>' stems. 



K. coinmuiiis, (\>'allr.) 



Alphititmoi l^hii iininiiiiiiis. hot luliilii, Wallr. in part, Vcrhandl. Natlirf. FrciiiKl. I. 



/■:> y.\if>i- (omiiiinii'i, iiiliiia, K.ibli. Dcut.sclil. Krypt. I'lora. 



/■'rysihe io»i»i inn's, I.k. in part. 



Jii y.siplii' .\iiiii!i\i;i,r, DC. I'lore I'raiic. VI, p. 105. 



/■:irKi/>/ii: I'isi. DC. 1. c. II, p. 27.). 



fii \sif>lir Ci>in'i>lviili\ DC. 1. c. II, p. 274. 



I-'iysi/thi- /'iilyfioiu', DC. I. c, II. p. 27,^. 



Ki Ysifilir CDiininnn's, Hr. Suinina Ves'. Scand. p. 4o(). 



F.rysiphr cumm inn's, Afai/ii, Ltv. in jxirt, Ann. Sci. Nat. .Ser. Ill, Tome XV. 



Amiihigenous. ^lycelium abundant, jiorsistent or sometimes! 

 ovanesoent. Peritlu'cia varialde in size and r(.>ticulations: appiMula.ues 

 variable in length, often loni?, lying on the mycelimn or more or Ics?; 

 interwoven with it, usually ndored in pai't or tlii'ouuliout, luit occasion- 

 ally all hyaline, sonietinu^ liranclied. Asci 4-S, or more. Sporidia 

 mo.stly 4-8, variable in size. 



Very common from ocean to ocean on a very lariie number of 

 host plants, among' which are the ftdlowing: Clematis V/rff/niana, 

 C. ligiiHtk-ifolla. Anemone V/'iyhiktna, Ane/noneUa tJudlvtroides^ 



