EXASCACEAE— GYMNASCACEAE 



93 



11. Spores 2-celled; stipe fascicled-ramose, suberose 



Acroscyphus 8 : 8i i 



Order ii. GYMNASCALES 



Apothecia imperfect, more or less effuse or obsolete, raaculiform, byssoid or 

 dot-like, exciple absent; asci mostly free, often single, i-many-spored, rarely with 

 paraphyses. 



Family so. EXASCACEAE 



8:8ii, 10:67, 11:43s, 14:823, 16:803, 18:196 



Asci parallel and crowded, sessile or enlarged at base; parasitic in living plants 

 and deforming the part attacked as a rule. 



I. Asci few-spored, usually 8-spored 



1. Spores i-celled, more or less globose Exascus 8:816 



2. Spores 2-3-septate, oblong Elsinoe 16: 804 



II. Asci many-spored 



1. Asci more or less globose Taphridium 18: 203 



2. Asci terete-clavate Taphrina 8:812 



Bargellinia 8:823 



Amaurascus 1 1 : 438 

 Conidiascus 16:807 



Family 51. GYMNASCACEAE 



8:820, 10:70, 11:437, 14:824, 16:805, 18:194 



(incl. Ascoidaceae, Ascocortiaceae, Endomycetaceae, Protomycetaceae) 



Asci more or less solitary or grouped in masses of mycelium ; for the most 

 part saprophytic. 



I. Saprogenous 



1. Asci 1-2-spored 



2. Asci 3-8-spored 



a. Spores globose or nearly so 

 (i) Spores brown or violet 

 (2) Spores hyaline or golden 



(a) Asci 3-5-spored 



(b) Asci 8-spored 

 X. Asci surrounded by serrate spiral hyphae 



Ctenomyces 8:824 

 y. Asci without serrate spiral hyphae 

 (x) Asci solitary 

 m. Asci acrogenous Eremascus 8:822 



n. Asci intercalary Oleina 8:822 



(y) Asci grouped or congested in masses 



Gymnascus 8 : 823 



(incl. Arachniotus 1 1 : 438) 



b. Spores elliptic, hyaline; asci vertical, clavate 



Ascocorticium 10: 71 



3. Asci many-spored 

 a. Spores globose 



(i) Asci elongate, split at base Dipodascus 11:439 



(2) Asci terete-clavate, simple at base Ascoidea 10: 71 



