249 
1. — ODONTOTREMA Nyl. 
Thallus vix ullus distinctus. Apothecia nigra thelotremoideo- 
 decideina (vel gymnotremoidea) nuda, primo clausa, dein mar- 
— gine (proprio) denticulato-rupto dehiscentia. Forte potius Fun- 
— gis relegandum genus, 
1. 0. minus Nyl. Herb. Mus. Fenn. p. 91. 
Thallus macula sepe valde dilatata albida vel albido-cine- 
— rascente indicatus (vix ullus verus); apothecia sat sparsa 
 Parva (vix 0,5 millim. latiora); spor&e incolores ellipsoi- 
— dex simplices, interdum tenuiter 3-septate, longit. 0,011—15, 
— Crassit. 0,006—7 millim., paraphyses graciles. Gelatina hyme- 
 hea iodo vinose rubens. 
Supra lignum abietinum vetustum ad Helsingfors raro; pro- 
q pe Aboam (P. A. Karsten); prope Kajanam (K. P. Malmgren). 
 Hoic generi accedit Schizoxylom Pers., tres in Europa offerens species 
thecis seriatim polysporis), NA Sch. sepincolam Pers., Sch. 
een ror Fr. &. V. Sc. Å 121, ”Lecideam dryi- 
+ LD. 8. exs. 273) et Sch. dryinum (Flk. D. L. 141 sub nomine 
färyinan, Ex iis modo Schizozylon cor Es e Scandinavia mihi 
Cognitum, differens sporis minoribus (latit. et longit. circa 0,0025 millim.) 
? Sch dryino (in quo sporse long. 0,009—0,012, crass. circa 0,0025 
fr Sed potius fungis adscribend& sint ha species gquam liche- 
Trir. XVIL — XYLOGRAPHIDELI. 
| Thallus parum visibilis vel obsolete indicatus. Apothecia con- 
| ariusela, vel epithecio plicato, aut plana, lirellina (non rotun- 
| 3 ata) aut oblongo-rotundata; spore 8" simplices. 
I. — XYLOGRAPHA Fr: pr. p., Nyl. 
3 A ofhecia linearia, epithecio planiusculo vel concaviusculp 
pe Suleiformi (spithecio supra longitudinaliter plicato), spora 
[olores, Paraphyses distinete gracilescentes vel minus distincta. 
I 32 
