The key to the known species in Chlorociboria

1. Symbiotic with bryophytes......................................................................................................................... Chlorociboria lamellicola

Not symbiotic with plants...................................................................................................................................................................2

2. Apothecia> 5 mm in diameter ................................................................................................................................. C. aeruginascens

Apothecia <5 mm in diameter ...........................................................................................................................................................3

3. Stem> 5 mm long ........................................................................................................................................................... C. colubrosa

Stem <5 mm long ..............................................................................................................................................................................4

4. Disc dark green or black when dry.....................................................................................................................................................5

Disc not dark green or black when dry.............................................................................................................................................16

5. Receptacle green when dry.................................................................................................................................................................6

Receptacle dark green-brown when dry ................................................................................................................................ C. musae

6. Paraphyses branched ..........................................................................................................................................................................7

Paraphyses unbranched ....................................................................................................................................................................12

7. Ascospores oblong or fusiform to elongate-ellipsoidal......................................................................................................................8

Ascospores filiform, 45–55 μm long................................................................................................................................... C. subtilis

8. Ascospores oblong, 3–4 μm long ................................................................................................................................... C. salviicolor

Ascospores fusiform to elongate-ellipsoidal ......................................................................................................................................9

9. Subhymenium with aeruginous pigmented ................................................................................................................... C. omnivirens

Subhymenium without aeruginous pigmented .................................................................................................................................10

10. Ascospores <9.0 μm long ..................................................................................................................................... C. novae-zelandiae

Ascospores> 9.0 μm long ................................................................................................................................................................11

11. Ascospores 1.7–2.0 μm wide...................................................................................................................................... C. argentinensis

Ascospores 2.6–3.8 μm wide............................................................................................................................................. C. daliensis

12. Ascospores fusiform.........................................................................................................................................................................13

Ascospores oblong............................................................................................................................................................................14

13. Tomentum hyphae absent ................................................................................................................................................... C. procera

Tomentum hyphae present................................................................................................................................................. C. halonata

14. Tomentum hyphae lacking........................................................................................................................................... C. awakinoana

Tomentum hyphae present with smooth-walled...............................................................................................................................15

15. Asci> 95 μm long .......................................................................................................................................................... C. spathulata

Asci <95 μm long ......................................................................................................................................................... C. aeruginella

16. Disc yellow.......................................................................................................................................................................................17

Disc not yellow.................................................................................................................................................................................26

17. Disc with whitish bloom...................................................................................................................................................................18

Disc without whitish bloom..............................................................................................................................................................20

18. Ascospores oblong............................................................................................................................................................................19

Ascospores clavate or filiform............................................................................................................................................. C. clavula

19. Ascospores> 21 μm ..................................................................................................................................................... C. macrospora

Ascospores <14 μm ................................................................................................................................................. C. campbellensis

20. Paraphyses extending beyond the asci .............................................................................................................................................21

Paraphyses scarcely extending beyond the asci ...............................................................................................................................24

21. Paraphyses up to 5 μm wide............................................................................................................................................... C. solandri

Paraphyses less than 3 μm wide .......................................................................................................................................................23

22. Ascospores surrounded by gelatinous sheath 1-1.5 μm thick .................................................................................... C. albohymenia

Ascospores without gelatinous sheath..............................................................................................................................................22

23. Ascospores> 7 μm ........................................................................................................................................................ C. metrosideri

Ascospores <5 μm ............................................................................................................................................................ C. olivacea

24. Asci> 90 μm long ............................................................................................................................................................................25

Asci <90 μm long ................................................................................................................................................................ C. glauca

25. Ectal excipulum 35–45 μm thick.................................................................................................................................... C. poutoensis

Ectal excipulum 60–75 μm thick...................................................................................................................................... C. pardalota

26. Disc off-white to translucent blue-green .......................................................................................................................... C. duriligna

Disc orange or green.........................................................................................................................................................................27

27. Disc orange.......................................................................................................................................................................................28

Disc green.........................................................................................................................................................................................29

28. Ascospores filiform ............................................................................................................................................................. C. spiralis

Ascospores ellipsoidal ...................................................................................................................................................... C. herbicola

29. Macroscopically pubescent ........................................................................................................................................... C. pteridicola

Macroscopically glabrous.............................................................................................................................................. C. aeruginosa