17 (16) Appendages usually 3 at each end (sometimes 4-7), terminal or subterminal, stiff, thin, taper- 

 ing, sometimes curved, to 40 /j long Corollospora (p. 22) 



17 {16) Appendages 4-6 at each end, bulbous at base, radiating, attenuate, semirigid, mostly to 30 /j 



long Halosphaeria (p. 23) 



18 (N) Appendages radiating, stiff or bristlelike 



Keisslertella blepharosporn k': 



18 (14) Appendages gelatinous, short, caplike, subspherical or long 19 



19 {18) Spores cylindrical, to 70 /J long Halosphaeria {p. 23) 



19 (18) Spores elipsoidal, thick-walled, to 35 fj long ... (see also Phragmosporae) Lentescospora submarina 



20 (/.5) Ascospores with a short, gelatinous appendage at each end (see 



also Phragmosporae) Lentescospora submarina 



20 ( 7.5) Ascospore appendages variously shaped 21 



21 (20) Ascospores with a gelatinous sheath; appendages tapering or filiform Ceriosporopsis {p. 21) 



21 {20) Ascospores without a gelatinous sheath; appendages subspherical or caplike, blunt or atten- 

 uate, stiff or hamate 



22 



19 



