* * 



Uncinula 



91 



y^8 (excl. syn. [/^ Tulasnci Fckl.). 1896 ; Oudem. Rev. Champ.- 

 Pays.-Bas. 2: 88. 1897. . . . . 



. Exsicc.: .Rab.-Wint. Fung. Eur. 2941 ; Brit, and Cav. Fung.-, 

 par. 70; Rehrn.. Ascom. 77 ; Sacc. Myc, Ven. 146; de Thiim., 

 Fung, austr. 133, and Myc. Univ. 154; and (cum Phyllactinia 

 corykd) :\oi^'^ Syd. Myc March, .143, "^658, *3674, ^423 r; 

 Kunze, Fung. .select, exsicc. 236, 575; Desmaz. PI. Cn Fr. ed. i,, 

 sen., I, 267, 1112; *ed. 2,.ser. i, 512; yize. Fung. Brit. 197;' 

 and *I98 suh . Mifrosphqera . Hcdzuigii; Westend. Herb. Crypt., 

 Belg. 5.50;, Cooke, , Fung. :Brit Ex.sicc. 93, ed. 2, 282; Jack, 

 Lein. and .Stizenb. Krypt. Bad. 51 ; .Ayres, Myc Brit. 7S.; 

 Roumeg. Fung. Gall,, Exsicc. 971 ; Fckl. Fung, Rlicn. joi ;> 

 Klotzsch, Hei-b, Myc. 179; *Rab. Fung. Eur. 559; *\Vartm..and 

 Schenk,: Sclweiz. Krypt. 212; *Kneiff. and Hartm. , PL Cr>^pt, 

 Bad. 14; Erb. Critt. Ital. sen 2, 818, 1364 (in Herb. Mus. Flor- 



Aniphigenous ; rnycelium evanescent, or persistent as a thin 

 effljsed^filn:;! ; perithecia scattered or subgregarious, hemispherical 

 or globose-depressed, large, 120-225 u in diameter, usually about 

 180 fi, cells ill-defined, about 10 (i wide ; appendages numerous, 

 -^-4', rarely equalling the diameter of the perithecium, smooth, 

 colorless, thick- walled to the apex, usually a very few simple, the 

 rest bifid, with occasionally one or both of the branches, agaia 

 forked, apex of the simple appendages or of the branches unci- 

 nate ; a,sci4-l2, usually 6-10, sub-pyriform or oblong, with or 

 without a short stalk, 70-95 X 45-55 !^\ spores usually 8, rarely 

 6, 22-26 X 13-15 /i. 



Hosts, — Acer campcstre^ A, monspcssulanum, A.'picUnn, A. pla- 



tanoides^ A. pscudo-platamts, A, rubrum (394), ^' spicatum, A. 



tataricum \_Phillyrca media [214)]. 



/)«/;77w/w/^ — Europe : Britain, France, Belgium, Nether- 

 lands (263), Germany, Switzerland, Italy, Austria-Hungary, 

 Denmark,, Sweden, Russia. 



Asia : Transcaucasia (338), Japan. 



U. aceris is recognized at once by its forked appendages (Fig. 

 87) which more or less cover the upper half of the perithecium, 

 forming a kind of crown (see Tulasne's beautiful figures, Sel. 



Fung. Carp, i : //. 2'./. 2~j). 



Nearly all authors have described the perithecia as becoming 



