CARPOMYCETEAE 



341 



Family . 29. Buelliaceae. Crustaceous, with Protococ- 

 cus hosts. Buellia. 



Family 30. Physciaceae. Foliose to fruticose, with 



Protococcus hosts. Physcia. 



Order CALICIALES. Powdery Lichens. Common fungi, 

 and lichen-forming fungi; apothecia 

 spheroidal, pulverulent. 



Family 31. Protocaliciaceae. True fungi, sapro- 

 phytic. Mycocalicium. 



Family 32. Caliciaceae. Crustaceous lichens, with 

 Protococcus or Stichococcus hosts. 

 Calicium. 



Family 33. Cypheliaceae. Crustaceous lichens with 

 Protococcus or Trentepohlia hosts. 

 Cyphelium, Tylophoron. 



Family 34. Sphaerophoraceae. Foliose or fruticose 

 lichens with Protococcus hosts. 



S phaerophorus. 



Order PHACIDIALES. Little Cup-fungi. Common fungi, 

 spore-fruits open (apothecia). 



Family 35. Stictidaceae. Fleshy, yellow. Stictis, 

 Propolis. 



Family 36. Tryblidiaceae. Leathery or carbonace- 

 ous, black. Tryblidium, Scleroder- 

 ris. 



Family 37. Phacidiaceae. Leathery or carbonace- 

 ous, black. Phacidium, Rhytisma. 



Order EXOASCALES. Pocket Fungi. Common fungi; 

 apothecia much reduced and sim- 

 plified. 



Family 38. Exoascaceae. Parasitic in higher plants. 

 Exoascus, Taphrina. 



Family 39. Ascocorticiaceae. Saprophytic, asci 

 forming a cushion. Ascocorticium. 



Family 40. Endomycetaceae. Asci single, not in 

 masses or in cushions. Endomyces, 

 Eremascus. 



Order PEZIZALES. Cup-fungi. Common fungi; apothe- 

 cia at length cup-shaped, fleshy or 

 leathery. 



