EXASCACEAE— GYMNASCACEAE 93 



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



Acroscyphus 8:811 



Order 11. GYMNASCALES 



Apothecia imperfect, more or less effuse or obsolete , maculif orm, byssoid or 

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

 paraphyses. 



Family 50. EXASCACEAE 



8:811, 10:67, 11:435, 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 



Family 51, GYMNASCACEAE 



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



(inch 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 Bargellinia 8:823 



2. Asci 3-8-spored 



a. Spores globose or nearly so 



(1) Spores brown or violet Amaurascus 11:438 



(2) Spores hyaline or golden 



(a) Asci 3-5-spored Conidiascus 16:807 



(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 11:438) 



b. Spores elliptic, hyaline ; asci vertical, clavate 



Ascocorticium 10:71 



3. Asci many-spored 

 a.- Spores globose 



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



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



