o6 OXYGEXACEAE— TUBERACEAE 



Phaeodictyae 

 Spores dark, muriform 

 I. Ascomata applanate-tuberculiform, black Cookella 8:846 



Family 55. ONYGENACEAE 

 8:861, 10:80, 11:440, 16:807 



Ascomata subglobose, sessile or stipitate, membranous, fragile, epizoic : gleba 

 waxy, then pulverulent ; asci 8-spored, globose, evanescent ; spores continuous, sub- 

 hyaline. 



A single genus Onygena 8:861 



Family 56. ELAPHOMYCETACEAE 

 (inch CENOCOCCACEAE) 



8: 863, 10: 80, 11 : 441 

 Ascomata hypogaean, woody, crustose or carbonous, more or less globose, inde- 

 hiscent, finally producing a powdery spore mass or gleba; asci 1-8-spored, some- 

 times spurious. 



I. Gleba interwoven with silky threads; asci normal 



Elaphomyces 8:863 



II. Gleba without capillitium; asci spurious, cell-shaped 



Cenococcum 8:871 



Family 57. TUBERACEAE 

 (inch ENDOGONACEAE, EOTERFEZIACEAE) 



8:872, 10:80, 11:442, 14:826, 16:808, 18:205 



Ascomata hypogaean, rarely epigaean or parasitic, fleshy or waxy hardened, more 

 or less globose, indehiscent : gleba never becoming a powdery mass, typically veined 

 or lacunose, rarely continuous ; asci 1-8-spored, rarely spurious. 



Hyalosporae 



Spores hyaline, 1 -celled, globose to elliptic 



I. Gleba without veins, but with one or more cavities 



1. Asci linear or elongate 



a. Spores verrucose or roughened 



(1) Spores globose Pseudogenea 16: 808 



(2) Spores ovoid to elliptic Genea 8:873 



b. Spores smooth 



(1) Gleba with a single large cavity Hydnocystis 8:876 



(2) Gleba convolute lacunose 



(a) Densely lanate ; canals not produced to surface 



Geopora 8: 877 



(b) Xot lanate ; canals produced to surface 



Pseudohydnotria 16:808 



2. Asci globose to oblong 



a. Spores roughened or alveolate, globose 



