1 |
Ascospores with two longitudinal germ slits |
Scopinella
|
– |
Ascospores with germ pores |
2
|
2 |
Ascospores with a broad germ pore and a small basal appendage |
3
|
– |
Ascospores with a germ pore at each end |
4
|
3 |
Ascomata with a crown of dark brown setae surrounding the ostiole |
Setiferotheca
|
– |
Ascomata without setae |
Arxiomyces
|
4 |
Ascospores oblong or cylindric-fusiform, and germ pores crateriform |
Syspastospora
|
– |
Ascospores and germ pores otherwise |
5
|
5 |
Ascomata ostiolate; neck long, composed of hyphae |
6
|
– |
Ascomata non-ostiolate or ostiolate; neck absent or short, conical, composed of angular cells similar to those of the ascomatal wall |
7
|
6 |
Neck composed of irregularly arranged hyphae |
Melanospora
|
– |
Neck composed of parallel arranged hyphae |
Vittatispora
|
7 |
Ascospores with indistinct germ pores |
Pseudomicrothecium
|
– |
Ascospores with conspicuous germ pores |
8
|
8 |
Germ pores surrounded by hyaline structures |
9
|
– |
Germ pores without such structures |
10
|
9 |
Germ pores with a raised rim |
Dactylidispora
|
– |
Germ pores with a blistered, rarely cushion-like structure |
Pustulipora
|
10 |
Ascomatal wall cephalothecoid |
Rhytidospora
|
– |
Ascomatal wall not cephalothecoid |
11
|
11 |
Ascomata dark, densely setose |
Echinusitheca
|
– |
Ascomata translucent, glabrous or surrounded by hyphae-like hairs |
Microthecium
|