358 THE MICROSCOPIST. 



2. Leptostroma. Conceptacle innate, subumbonate in 

 the centre, dimidiate, at length falling off, leaving a thin 

 disk. 



3. Phoma. Conceptacle ostiolate, very thin, innate, 

 immersed, rounded, with a simple pore. Spores oblong, 

 simple. 



4. Leptothyrium. Conceptacle operculate, innate, shield- 

 shaped, not radiate-fibrous. Spores spindle-shaped, simple. 



5. Aetinothyrium. Conceptacle operculate, innate, etc., 

 as 4. 



6. Microthecium. Conceptacle indehiscent, membranous, 

 immersed, endophytic. Spores simple. 



7. Cryptosporium. Conceptacle membranous, opening 

 irregularly at summit. Spores spindle-shaped, simple. 



8. Sphceronema. Conceptacle horny, inn-ate-superficial, 

 produced into a neck, ostiole simple. Spores oblong, 

 simple. 



9. Acrospermum. Conceptacle leathery externally, 

 fleshy within, elongate-clavate, ostiole simple. Spores 

 stick-shaped, simple. 



10. Diplodia. Conceptacle horny, innate-superficial or 

 immersed, perforated by a pore or irregularly opened or 

 ostiolate, ostiole more or less produced. Spores ovoid or 

 ellipsoid, double, then halved into compressed-ternate 

 semi-ellipsoid sporules. 



11. Hendersonia. Conceptacle fleshy, innate superfi- 

 cially or immersed, perforated by a pore, opening irregu- 

 larly or ostiolate, ostiole produced. Spores globose, cylin- 

 drical or discoid. 



12. Septoria. Conceptacle horny, innate-immersed, 

 rounded, ostiole simple. Spores cylindrical, septate. 



13. Vermieularia. Conceptacle bristly, depressed, 

 bursting irregularly. Spores minute, linear. 



14. Neottiospora. Conceptacle immersed. Spores ap- 

 pendaged at one end with short hyaline threads. 



15. Asteroma. Conceptacle very small, slightly promi- 



