22 {21) Ascospores ellipsoidal, never elongate, under .<■•'•': C'iOv''"-:-' 



30 ;j in length; with a caplike or globose, y^ ^.•;'"-'^' 



thick, polymorphic appendage at each end; V-v?fe W 



ascocarp stromatic Phycomelaina laminariae •'^.••'<-fe-'v^'''' / -va-iv.. 



22 (21) Ascospores ellipsoidal to elongate, to 70 /j in length; with a subspherical, tapering or blunt, 



straight or curved appendage at each end; ascocarp nonstromatic Halosphaeria(.p.23) 



23 (13) Equatorial appendages setae or flagellalike, arising peritrichously Corollospora (p. 22) 



23 (13) Equatorial appendages not flagellalike, not arising peritrichously 24 



1 



24 (23) Equatorial and apical appendages pro- y^-— \tS-^Vi' / 

 vided with a small involuted cap or tip / i^^SSf^'^'^y^ 

 Marinospora calyptrata .,(/:>. ^•■-vV' )f^ 



.•/:"■'• 'i 



24 (23) Equatorial and apical appendages not provided with small involuted caps or tips 25 



25 (24) Ascospores totally surrounded by a gelatinous sheath; apical appendages broad, cylindrical 



or hollow Ceriosporopsis (p. 21) 



25 (24) Ascospores not surrounded by a gelatinous sheath; apical appendages thin, tapering, atten- 

 uate or blunt and subspherical Halosphaeria (p.23) 



20 



