PERISPORIACEAE 23 



a. Ascus single Cystotheca 16: 407 



b. Asci several or many 



(1) Perithecia numerous in setose stroma-like 



cups Lasiobotrys 1 : 29 



(2) Perithecia not in cups 



(a) Perithecia globose Meliolopsis 1: 68 



(b) Perithecia applanate Asterula 1 : 47 

 2. Asci many-spored 



a. Asci many Apiosporium 1: 30 



b. Ascus single Monascus 9:373 

 III. Perithecia brown, then black, spores yellow 



Anixia 1 :34 



Phaeosporae 



Spores i-celled, dark 



I. Asci capitate on tips of branched hyphae Cephalothece 1: 36 



II. Asci sessile or on simple stalks 



1. Perithecia with appendages 



a. Spores globose, conglobate 



(1) Appendages closely spiral, convolute 



Pleurascus 16: 1123 



(2) Appendages flexuose-tortuose Arachnomyces 17: 532 



b. Spores .ellipsoid 



(1) Appendages several times branched Ascotricha 1: 37 



(2) Appendages circinate at apex Magnusia 1: 38 



2. Perithecia without appendages 



a. Perithecia hairy or setose Chaetomidum 1:39 



b. Perithecia glabrous 



(1) Perithecia innate upon a radiate subicle 



Asteronia 1 : 47 



(2) Perithecia not on a radiate subicle 



(a) Spores at first conglobate Laaseomyces 16:405 



(b) Spores free from the first 



x. Growing on lichen thalli Orbicula 1:38 



y. Growing on roots Thielavia 1 : 39 



Hyalodidymae 



Spores 2-celled, (i-septate), hyaline 



I. Asci 8-spored 



1. Cells of spore separating easily Neorehmia 17:536 



2. Cells of spore not separating 



a. Perithecia on a radiate subicle Asterella 1 : 42 



b. Perithecia on a uniform subicle Dimerosporium 1 : 51 



II. Asci many-spored Pampolysporium 16:411 



Pbaeodidymae 



Spores i-septate, dark when mature, rarely yellowish 



I. Perithecia on a subicle 



1. Subicle radiate : perithecia lenticular Asterina 1 : 39 



2. Subicle uniform, dematium-like ; perithecia globose 



