4 



1. XYLARIA HiLL. Hist. Plants. (1773) p. 62 et 63 



SeC. NlTSCHK. 



Stroma suberosum, rarius carnosum vel coriaceum, erec- 

 tum, cylindraceum vel compressum, simplex vel ramosum, 

 nigricans. Perithecia sphaeroidea vel ovoidea, atra, cornea, 

 stramati plus minus immersa. Asci cylindracei. Sporae 

 8:nae, obliqve monostichae, oblongatae, inaeqvilaterales. Pa- 

 raphyses vix uUae. — Hymeuium conidiferum partem stroraa- 

 tis recentis superiorera vestiens. Conidia minima. 



Fungi majusculi, fruticosi, plurimi lignicolae, nigricantes. 



n. PORONIA WiLLD. Flor. Berol. Prodr. p. 400 

 (1787) sec. NiTscHK. 



Stroma erectum, carnoso-suberosum, prirao claviforme, 

 deinde cupuliforme, stipitatum, superficie plus minus nigri- 

 cans. Perithecia stromatis parti superiori disciformi tantum 

 immersa, carbonacea, atra. Asci breviter pedicellati, cyliu- 

 dracei. Sporae 8:nae, monostichae, ellipsoideae, rectae, fu- 

 scae, muco hyalino involutae. Pseudoparaphyses filiformes, 

 articulatae, simplices, ascos superantes. — Hymenium conidi- 

 ferum stroma recens vestiens. Conidia sphaeroidea, minima. 



Fungus pezizoideus, fimicola. 



III. HYPOXYLON BuLL. Hist. Fung. Gall. I, p. 168 

 (1791) pr. p. sec. Nitschk. 



Stroma nunc subsphaeroideum vel heraisphaericum, nunc 

 plus minus efifusum, crustiforme, primitus e conidiis jara prirao 

 nudis, sphaeroideis vel ovoideis, varie coloratis, rainirais pul- 

 verulentum, dein nudum, lignoso-suberosum, extus intusqve 

 fusco-nigricans vel rubiginosum. Perithecia periphaerica, 

 monosticha, rarius polysticha, concentiica, stromati plus rai- 

 nus iraraersa, forraa varia. Asci pedicellati, cylindracei. 

 Sporae 8:nae, monostichae, oblongatae, inaeqvilaterales, ra- 



