96 



MICROTHYRIALES 



(b) Spores dark 

 X. Hymenium discoid 

 y. Hymenium ring-like, loculoid 



(3) Spores x-celled, hyaline 



(4) Spores muriform, hyaline 



b. Scutellum with several concave hymenia be- 

 neath 



(1) Spores 1-celled, hyaline 



(2) Spores 2-celled, hyaline 



X. Hymenia rounded; spore-cells equal or 



unequal 

 y. Hymenia linear 



(3) Spores x-celled, dark 



2. Ascoma finally erumpent 



a. Spores 1-celled, dark; hymenium usually 



single, ring-like 



b. Spores 2-celled, dark; hymenia several, linear, 



irregular 



B. Ascoma superficial, with innate hypostroma 

 1. Hymenia linear 



a. Hymenia arranged radially 



(1) Ascoma attached at the center 



(a) Ascoma setose; hymenia often irregu- 



larly radiate; spores 2-celled, brown; 

 paraphyses present 



(b) Ascoma glabrous; spores 2-cel!ed, 



brown 

 X. Hymenia stellately arrangea 

 y. Hymenia flabellately arranged 



(2) Ascoma attached at several points 



(a) Ascoma with conidial hairs; spores 2- 



celled, hyaline; paraphyses lacking 



(b) Ascoma without conidial hairs; spores 



2-celled, dark; paraphyses present 



b. Hymenia arranged in a more or less complete 



ring 



(1) Ascoma attached at the center 



(a) Spores 1-celled, dark; asci 16-spored 



(b) Spores 2-celled; asci 8-spored 



X. Spores hyaline; paraphyses present 

 y. Spores dark 



(x) Hymenia with radial rifts; paraph- 

 yses lacking 

 (y) Hymenia without radial rifts 

 m. Paraphyses present 

 n. Paraphyses lacking 



(2) Ascoma attached at several points 



(a) Spores 2-celled 



X. Spores hyaline; paraphyses lacking 

 y. Spores dark; paraphyses present 



(b) Spores muriform, hyaline; paraphyses 



present 



Stigmatea 1:541, TS 401; 21 

 Cycloschizella 



Stigmatodothis 24:400, TS 401 

 Vizella 2:662, TS 401; 21 



Coscinopeltis 24:394. TS 402; 

 21 



Munkiella 24:395, TS 402 

 Pseudolembosia 24:403, TS 401 

 Melanochlamys 24:401, TS 402; 

 21 



Blasdalea 16:634, TS 403; 21 



Aulacostroma 24:402, TS 403; 

 21 



Subfamily Parmulineae 



Chaetaspis 24:419, TS 406 



Parmulina 24:415, TS 406 

 Rhipidocarpum 24:415, TS 406 



Parmulariella 24:404, TS 407 

 Schneepia 24:404, TS 407; 21 



Cyclostomella 24:404, TS 407 

 Cycloschizum 24:404, TS 407 



Inocyclus 24:416, TS 408; 21 



Dielsiella 24:404, TS 407; 21 

 Polycyclus 24:416, TS 408 



Polycyclina 24:408, TS 408 

 Cocconia 8:738, TS 408; 21 



Mendogia 16:669, TS 408 



