Hone: pezizales, phacidiales and tuberales of minn. 69 



Pitya. 



Hymenoscypha. 



Cyathicula. 



Helotium. 



Coryne, 



(2) Cup waxy or tough, mainly inconspicuous. 



(a) Spores spherical. 



(b) Spores elliptical or fusiform. 



1. Spores at maturity i-celled. 



a. Cup margin entire. 



b. Cup margin toothed. 



2. Spores at maturity 2-4 celled. 



(3) Cup cartilaginous or gelatinous. 

 I. Spores at maturity many celled. 



Mollisiaceae. 



A. Cup fleshy or waxy, small. 



(i) Cup from first free upon the substratum, seated upon a web of 

 hyphae, spores i celled. Tapesia. 



(2) Cup at first immersed in the substratum, then erumpent, spores 

 many celled. Beloniella. 



B. Cup cartilaginous, or subgelatinous, spores 2-4 celled at last. 



Calloria. 

 Patellariaceae. 



A. Cup free, sessile, round; spores 2-celled, becoming brown. i 



Karschia. 

 Cenangiaceae. 



A. Cup when fresh leathery, horny, or waxy, 

 (i) Stroma not present. 



(a) Spores i-celled; colorless. 



(b) Spores thread-like, many-celled. 



1. Spores colorless 



2. Spores brownish. 



(2) Cup seated upon a more or less well developed stroma. 



(a) Spores 8 in ascus, not germinating in ascus. Dermatca. 



(b) Spores many, conidia-like, germinating in ascus. 



Tympanis. 



(3) Cup seated upon a hypothallus, not a stroma, not immersed. 



Urnula. 



B. Cup when fresh gelatinous, stalked or sessile. Bulgaria. 

 Phacidiaceae. 



A. Cup gregarious on a stroma, spores needle-shaped, hyaline. 



Rhytisma. 

 Eutuberaceae. 



A. Spore surface convoluted; asci short sack-like, mostly 4-spored. 



Tuber. 



Cenangiutn. 



Godronia. 

 Tryblidaria. 



