CALICIACEAE 



71 



Spores clear or merely yellowish 



(1) Algae present but not forming a thallus 



FarrioUa 83 



(2) Algae lacking 



(a) Asci long. and slender stalked. 



ovoid above 

 Caliciopsis R. 388 

 Roesleria 8: 826, R. 396 



(b) Asci cylindric 

 b. Spores dark 



(1) Apothecia black, nearly sessile 



(2) Apothecia bright-colored, with a slender stalk 



*Eucyphelis R. 392 



Sphinctrina 83, R. 389 



(Cyphelium Rehm) 



Acolium R. 398 

 Mycocalicium R. 401 

 Stenocybe 82 R. 413 



2. Spores typically 2-several-celled 



a. Spores 2-celled 



(1) Apothecia sessile 



(2) Apothecia with a slender stalk 



b. Spores 3-several-celled 

 II. Mycelium forming a thallus with algae 



I. Thallus crustose 

 a. Spores i-celled, globose or globoid 

 (i) Asci 8-spored 

 (a) Spores dark; disk more or less flat 

 X. Apothecia stalked Chaenotheca 81 



Apothecia sessile *Holocyphis 84 



Spores clear or yellowish ; disk globose 



Coniocybe 82 

 Asci many-spored Tylophorella 85 



(b) 



(2) 



Spores 2-several-celled, transeptate or muriform 

 (i) Spores transeptate 



(a) Spores 2-celled, dark or brown 

 X. Apothecia stalked 



(x) Apothecia long-stalked 



(y) Apothecia with short thick 



y. Apothecia sessile 



Calicium 81 

 stalk 

 Pyrgidium 83 



(x) Algae Pleurococcus Cyphelium 83 



(y) Algae Chroolepus 

 m. Proper exciple alone present 



n. Thalline exciple also present 



*Dipyrgis 84 

 *Ditylis 84 



(b) Spores 3-many-celled 

 X. Proper exciple alone present Pyrgillus 84 

 y. Thalline exciple also present Tylophorum 84 



(2) Spores muriform Pseudacolium 84 



Thallus foliose 

 a. Thallus of horizontal scales with marginal apothecia 



Calycidium 85 



