ELVELLACEI, 737 



Stictis Wauchii. Berk. Outl.p. 375. Cryptomyces Waucliiiy 

 Grev. t. 206. Eng, Fl.x.p. 214, is referred by Tulasne to Rhy- 

 tisma maximum. 



Gen. 308. ASCOMYCES, M. & D. 



Parasitic ; receptacle none ; asci forming a thin 

 pulverulent stratum,mixed. with moniliform threads. 

 —Berk. Outl.p. 376. 



This appears to be the lowest form under which Discomy- 

 cetes can appear, the way being made for it by Projwlis. In 

 outward aspect it has little resemblance to more typical ge- 

 Fig. 342. nevB..- M.J.B. (Fig\U2.) 



2232. Ascomyces bullatus. Berk. " Blister Ascomyces." 



Tufts punctiform, at length confluent, at first covered by the 

 epidermis ; sporidia ovate or elliptic, subgelatinous, hyaline. — 

 Berk. Out!, p. 376, t. l,Jig. 9, C Oidiuni buUaium, B. Journ. 

 Hort.Soc. \x.2).ol,ivithJig. Taplirinabullata, Tul. Ann. Sc. Nat, 

 ser. v. vol. y.j). 127. 



On living pear leaves. {^^9- 342.) 



Sporidia ^Jg^ in. long ; asci "OlS '025 m.m. long, '01 m.m. thick. 



2233. Ascomyces deformans. Berk. " Peach Ascomyces." 



Hypophyllous, rendering the matrix here and there bullate, 

 sprinkled with a white powder ; asci short, cylindrical ; sporidia 

 elliptical, hyaline. — Berk. Outl.p. 376, t. i.f. 9 a. h. Taphrina de- 

 formans, Tul. Ann. Sc. Nat. ser. v. vol. Y.p. 128. Exoascus de- 

 formans., Fckl. Sym. Myc.p. 252. Fckl exs. no. 2063 and 2275. 



On peach leaves. 



2234. Ascomyces trientalis. Berk. " Trientale Ascomyces." 



Spots orbicular or irregular, arising from a reddish stratum. 

 — Berk, inlitt. Berk. Out. p. 376. 



On leaves of Trientalis Europcea. 



2235. Ascom.yces juglaxidis. Berk. "Walnut .Ascomyces." 



Hypophyllous, effused, snow-white on the nerves of the leaves ; 

 sporidia ovoid, hyaline. — Berk. Outl. p 376. Gymnosporium leu- 

 cosporum, Mont. Syll. p. 309. 



On walnut leaves. 



2i 



