342 THE PLANT PHYLA 



Family 41. Pyronemataceae. Fleshy, open from the 



first. — Pyronema. 

 Family 42. Pezizaceae. Fleshy, first spherical, later 



open. — Lachnea, Peziza. 

 Family 43. Ascobolaceae. Fleshy, first spherical, 



later open. — Ascobolus.' 

 Family 44. Helotiaceae. Fleshy, mostly open from 



the first. — Sclerotinia, Dasyscypha, 



Helotium. 

 Family 45. Mollisiaceae; 46, Celidiaceae; 47, Patel- 



lariaceae; 48, Cenangiaceae; 49, Cor- 



dieritidaceae; 50, Cyttariaceae. 

 Order Hblvellales. Helvellas. Common fungi; apo- 



thecia open from the first; fleshy or 



gelatinous. 

 Family 51. Rhizinaceae. Sessile. — Rhizina. _ 

 Family 52. Geoglossaceae. Stalked, capitate. — Mi- 



trula, Geoglossum. 

 Family 53. Helvellaceae. Stalked, capitate. — Mor- 



chella, Verpa, Helvella. 

 Order Graphidales. Slit Lichens. Lichen-forming 



fungi, allied to the preceding families. 

 Family 54. Arthoniaceae. Crustaceous, with Pal- 



mella, Trentepohlia, or Phyllactidium 



hosts. — Arthonia, Arthothelium. 

 Family 55. Graphidaceae. Crustaceous, with Pal- 



mella or Trentepohlia hosts. — Ope- 



grapha, Graphis, Graphina. 

 Family 56. Chiodectonaceae; 57, Dirinaceae. 

 Family 58. Roccellaceae. Fruticose, erect, with Tren- 



tepohha hosts. — Roccella. 

 Order Pyrenolichenbs. Closed Lichens. Lichen-form- 

 ing fungi, allied to the preceding 



families. 

 Family 59. Moriolaceae. Crustaceous, with Cysto- 



coccus hosts. — Moriola. 

 Family 60. Epigloeaceae. Gelatinous, with Pal- 



mella hosts. — Epigloea. 

 Family 61. Verrucariaceae. Crustaceous with Prot- 



ococcus or Palmella hosts. — Verru- 



caria, Thelidium. 



