HYPOCREACEAE 47 



T. Perithecia separate or cespitose 



1. Perithecia beaked, asci 8-sporecl Bivonella 9: 989 



2. Perithecia not beaked, asci many-spored 



Feracia 17: 815 



II. Perithecia in a stroma 



1. Asci paraphysate 



a. Stroma conoid, snow-white Leucocrea 16:601 



b. Stroma tuberiform, rimose Shiraia 16: 600 



2. Asci not paraphysate 



a. Stroma pulvinate, disk greenish Mattirolia 9:993 



b. Stroma subcrustose Uleomyces 11:364 



Scolecosporae 



2:562,9:993, 11:36s, 14:651, 17:815, 16:601 



Hyaloscoleciae 



Spores needle-shaped or filiform, hyaline or nearly so 



I, Perithecia separate or cespitose 



1. Perithecia enclosed in a sack Oomyces 2:564 



2. Perithecia not in a sack 



a. Perithecia immersed or erumpent 



(i) Perithecia many-perforate above Coscinaria 9:1003 

 (2) Perithecia with a single ostiole Micronectria 9:996 



b. Perithecia superficial 



(1) Perithecia globose-conic, papillate, reddish 



Ophionectria 2:563 



(2) Perithecia vertically oblong, not papillate, white 



Tubeufia 14: 652 



II. Perithecia in a subicle or in a stroma 



1. Perithecia in a subicle or byssoid stroma 



Torrubiella g : 994 



(Helminthascus 16:616) 



2. Perithecia in a stroma 



a. Stroma vertical 



(1) Stroma from a scierotium or a blackened matrix 



Claviceps 2: 564 



(incl. ^alansia 9:997, Balansiella 

 17:822) 



(2) Stroma without scierotium; on insects or fungi 



Cordyceps 2 : 566 



b. Stroma effuse or pulvinate Dussiella g: 1004 



(1) Stroma on a white subicle 



(2) Stroma without a subicle 



(a) Stroma effuse, encircling culms 



Epichloe 2 : 578 



(b) Stroma pulvinate to globose 

 X. Spore cells separating 



(x) Perithecia in a definite peripheral zone 



Mycomalus 16:604 



