60 ASCOMYCETES 



9. Spores remaining one-celled. 10. 



Spores becoming 2-celled. NIPTERA. 



Spores elongate-fusiform, 4- co-celled. BELONIDIUM. 



Spores filiform, co-celled. BELONOPSIS. 



10. Spores spherical. MULLISIELLA. 

 Spores elongate. MOLLISIA. 



11. Spores remaining one-celled. ORBILIA. 

 Spores finally 2-4-celled. CALLORIA. 



Family 6. Celidiaceae. 



This family contains a few inconspicuous genera mostly growing 

 on lichens, rarely on wood or bark. Tho several of the genera 

 have not yet been reported from North America, a synopsis is here 

 given since any of them are likely to be found here. 



1. Spores one-celled. 2. 

 Spores 2-celled. 3. 

 Spores 4-6-celled ; growing on lichens. CELIDIUM. 



2. Growing on wood or bark. AGYRIUM. 

 Growing on lichens. PHACOPSIS. 



3. Growing on wood or bark. LECIDEOPSIS. 

 Growing on lichens. CONIDA. 



Family 7. Patellariaceae. 



1. Walls of the ascoma thin ; hypothecium only slightly developed. 2. 

 Walls of ascoma thickened ; hypothecium well developed. 3. 



2. Spores hyaline, i-celled or at maturity, sometimes 2 celled. PATELLEA. 

 Spores hyaline, 4-6-celled. DURELLA. 

 Spores brown, 2-celled. CALDESIA. 



3. Asci 8-spored. 4. 

 Asci i6-spored ; spores 2-celled. RAVENELULA. 

 Asci many-spored. 14. 



4. Spores remaining I -celled at maturity. 5. 

 Spores becoming 2-celled at maturity. 7. 

 Spores elongate, needle-shaped or filiform, 4-many-celled. II. 



5. Paraphyses not broadened above, wavy. STARBAECKIA. 

 Paraphyses enlarged upwards (clavate). 6. 



6. Ascocarps superficial from the beginning (saprophytic). PATINELLA. 

 Ascocarps immersed at first, then erumpent (parasitic). NESOLECHIA. 



