150 



Subfam. 8. DIATRYPEAE. 

 XLI. DIATRYPE (Fr.) 



1. D. stigraa (Hoffm.) Fr. Summ. Veg. Scand. p. 385. 



Stroraa perithecigerura per peridermium erurapens, de- 

 mum nudatura, longe lateqve effusum, saepe ambiens, appla- 

 natura, primo pallescens, dein fuscescens, albido-pulverulen- 

 tura, demura atrura, crassit. circiter L mm. Perithecia ovoi- 

 dea, ostiolis subimraersis vel nonnihil prorainentibus, planius- 

 culis, integris vel qvadrigonis praedita. Asci longissime pe- 

 dicellati, longit. 30—50 mrara. (p. sporif), crassit. 4—8 mrara. 

 Sporae longit. t> — 12 rarara., crassit. 1,5 — 3 mrara. — Stro- 

 raata conidifera "perithecigeris superposita vel propinqva, sub- 

 orbicularia, pleruraqve confluentia lateqve extensa, reticula- 

 tira exarata, laete aurata, deinde ex cinereo nigrescentia. 

 Conidia „cylindracea, curvula, longit. 4—5 rarara., crassit. 1,5 

 mmm" vel filiformia, longit. 24—28 mmm., crassit. 1,5 mmm. 



Syn. Sphaeria stigma Hoffm. Veg. Crypt. I, p. 7, t. 2, f. 2. 

 Pers. Syn. Fung. p. 21. Fr. Syst. rayc. 11, p. .350. Sphaeria decorti- 

 cans Sow. Fung. Brit. II, t. 137 et III, t. .371, f. 3. Sphaeria undu- 

 lata Fr. Syst. myc. II, p. 350 nec. Pers. Syn. Fung. p. 21 (sec. 

 NiTSCHK.). Sphaeria decorticata De C. Flor. Fr. II, p. 289. Dia- 

 trype undtdata et D. stigma Fr. Summ. Veg. Scand. p. 385. CuRR. 

 Sphaer. in Trans. LiNN. Soc. vol. XXII, part. III. p. 271, n. 80 et 

 82. Diatrype stigma De N. Sfer. ital. p. 26, t. XXV Nitschk. Pyr. 

 germ. p. 65. Stictosphaeria Hoffmanni TuL. Sel. Fung. Carp. II, 

 p. 49, t. VI, f. 1 — 11. 



Form. conidif. Myxosporittm croceiim LiNK. Spec. Plant. VI, 

 part. n, p. 99 (verisimiliter pr. p. sec. TuL.). Naemaspora micro- 

 spora Desm. in Ann. Sc. nat. ser. I, tom. XIX, p. 271, t. V, f. 1. 

 TCL. ibid. ser. IV, tom. V, p. 117. 



Exsicc. Fr Scfer. Svec. 46. Karst. Fung. Fenn. 36. 



Hab. Ad corticera Betulae, Coryli, Qvercus, Padi, Ti- 

 liae et Rhamni ubiqve freqvens. Per annum fructificans. 



