APPENDIX. 359 



neut, close, subconfluent, seated on more or less radiating 

 fibrils. 



16. Discosia. Conceptacles innate, somewhat carbona- 

 ceous, at length collapsed and plicate, ostiole perforated. 

 Spores fusiform, produced at both ends into a threadlike 

 point. 



17. Prosthemium. Conceptacles horny, immersed, os- 

 tiole simple. Spores transversely septate, verticulate at 

 the apex of thin filaments. 



18. Angiopoma. Conceptacles free, membranous, some- 

 what horny, cup-shaped, dehiscing by a circular mouth, 

 provided with a fugarious epiphragtn. Spores affixed at 

 base, stalked, septate. 



19. Piggotia. Conceptacles irregular, thin, obsolete be- 

 neath, confluent, bursting by irregular crack; spores on 

 short stalks, largish, obovate, somewhat constricted at 

 base. 



20. Phlyctcena. Conceptacle spurious, formed by the 

 blackened epidermis ; spores fusiform, cuspidate, septate, 

 accompanied by a gelatinous mass. 



21. Glceosporium. Conceptacle absent ; spores covered 

 by cuticle which separates ; spores stalked, elliptical, sim- 

 ple, exuding a gelatinous tendril. 



22. Dilophosphora. Conceptacle immersed in a spurious 

 stroma, covered, perforated by a pore ; spores cylindrical, 

 continuous, crowned at both ends with radiating filiform 

 appendages. 



23. Sphceropsis. Conceptacle spherical, immersed, sub- 

 innate, astomous, bursting by separation of epidermis or 

 irregularly. Spores simple. 



Family II. MELANCONIEI. Conceptacles as in the pre- 

 ceding, but without a proper perithecium ; spores elon- 

 gated. 



Gen. 1. Sporidia globose, simple, adhering to form a 

 nucleus, at length breaking out free. Color black. 



