CARPOMYCETEAE _ 341 
Family 29. Buelliaceae. Crustaceous, with Protococ- 
cus hosts.—Buellia. 
Family 30. Physciaceae. Foliose to fruticose, with 
Protococcus hosts.—Physcia. 
Order CauiciaLes. Powdery Lichens. Common fungi, 
and lichen-forming fungi; apothecia 
spheroidal, pulverulent. 
Family 31. Protocaliciaceae. True fungi, sapro- 
phytie.—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 Puacrprates. 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 Exoascates. 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 Przizates. Cup-fungi. Common fungi; apothe- 
cia at length cup-shaped, fleshy or 
leathery. 
