46 



NATURAL HISTORY BULLETIN 



6. Ascobolace^e. 



Spores hyaline. 

 Asei 8-spored. 



Receptacle smooth or at least not hairy. 



Receptacle clothed with hairs 



Asci 16 to many-sporecl. 



Plants large, 1 to 2 mm. in diameter, at first 



conical 



Plants small mostly less than 1 mm. depressed. 

 Spores at first hyaline becoming purple. 



Spores free in the ascus 



Spores united in a ball in the ascus. 



7. Helotiace^e. 



Receptacle between fleshy and waxy, or waxy, thick or 

 membranaceous. 

 Receptacle fleshy-waxy, bright colored fragile or 

 dull leathery. 



Plants externally tomentose 



Plants externally smooth. 



Receptacle not springing from a sclerotium. 



Substratum green 



Substratum not colored 



Receptacle springing from a sclerotium. 

 Receptacle waxy, thick, tough or membranaceous. 

 Externally hairy. 



Plants stipitate 



Plants entirely sessile 



Externally smooth. 



Spores elliptical to fusiform. 



Plants slender stipitate 



Plants with stem short, stout or wanting. . 

 Spores linear or much elongated, many-sep- 

 tate. 



Receptacle cartilaginous; spores becoming several- 

 celled 



Ascophanus. 

 Lasiobolus. 



Thecotheus. 

 Rhyparobius. 



ascobolus. 

 Saccobolus. 



Sarcoscypha. 



Chlorosplenium. 



Ciboria. 



sclerotinia. 



Dasyscypha. 

 Trichopeziza. 



Phialea. 

 Helotium. 



gorgoniceps. 



C'ORYNE. 



8. Mollisiace^e. 



Receptacle fleshy-waxy or rarely membranaceous. 

 Receptacle cartilaginous, horny when dry. 



9. Patellariace.e. 



Spores with transverse septa only. 

 Plants patellate. 



Spores hyaline 3 to many-septate. 



. Mollisia. 

 Orbilia. 



Patellaria. 



