PHAEOSPORAE 29 



y. Perithecia with branched, hooked or spiral setae ; asci diffluent 

 (x) Spores subglobose to elliptic 



Chaetomium i: 220 

 (y) Spores triangular Bommerella A 38, 9: 486 



(2) Perithecia typically carbonous Rosellinia i: 252 



(incl. Pleosporopsis 14:501 and 

 Tympanopsis 1 1 : 283 



(3) Perithecia coriaceous, firm, ascending-elongate 



Bombardia i : 277 



II. Perithecia in a stroma 



1. Stroma immersed, somewhat woody; perithecia membranous 



Anthostoma 1 : 293 



2. Stroma superficial, carbonous or leathery; perithecia carbonous 



a. Stroma terete, fruticose or filiform 



(1) Stroma fimicole tPedisordaria 14:494 



(Podosordaria) 



(2) Stroma not fimicole 



(a) Stroma with a single perithecium at apex 



Capnodiella 17: 621 



(b) Stroma containing many perithecia 

 X. Perithecia immersed laterally 



(x) Stroma fruticose, clavate or filiform 



Xylaria i : 309 

 (incl. Kretschmaria 9: 565) 

 (y) Stroma disk-like or cupulate above 



Xylariodiscus 16:449 

 y. Perithecia immersed vertically 



(x) Perithecia immersed annulately about the truncate apex 



Camillea i: 346 

 (y) Perithecia crowded beneath an operculate disk 



Henningsinia 16:450 



b. Stroma effuse, globose or cupulate, adnate or substipitate 

 (i) Conidia superficial on the young stroma 



(a) Stroma usually fimicole Poronia 1:348 



(b) Stroma not fimicole 



X. Stroma concentrically zonate Daldinia i : 393 



y. Stroma not concentrically zonate 



(x) Stroma repand-pulvinate, somewhat hollow 



Ustilina 1:351 

 (y) Stroma solid 

 m. Stroma subglobose, hemispheric or obpiriform 



(m) Stroma not modified with squarrose papery membranes 



Penzigia 9:567 

 (n) Stroma modified by squarrose papery membranes 



Squamotubera 17:620 

 n. Stroma effuse 



(m) Perithecia immersed, necks rather long 



Bolinia i : 352 



