1. rhizome habit: long-creeping = 0; short-creeping = 1; compact = 2; erect = 3.

2. rhizome diameter (mm): 1-2 = 0; 2-4 = 1; 4-10 = 2; >10 = 3.

3. rhizome glutinous: yes = 0; no = 1.

4. number of ranks of leaves on rhizome: 2 rows on dorsal side (distichous) = 0; > 2 two rows on dorsal side = 1; polystichous (radially
    arranged) = 2.

5. rhizome scale length (mm): 1-3 mm = 0; 4-7 = 1; more than 8 = 2.

6. rhizome scale color: castaneous = 0; melleous = 1; dull brown = 2; dark brown = 3; orange to reddish = 4; black = 5.

7. rhizome scale shininess: lustrous = 0; dull = 1.

8. rhizome scale margins: entire = 0; subentire = 1; denticulate = 2; cilio-denticulate (setose) = 3; with irregular processes = 4.

9. phyllopodia: absent = 0; 1-3 mm long = 1; 3-30 mm long = 2; 30-50 mm long = 3; more than 50 mm long = 4.

10. stipe length relative to lamina length: less than 1/8 = 0; 1/4 - 1/6 = 1; 1/4 - 2/5 = 2; 1/2 - 2/3 = 3. .

11. stipe scale length (mm): 1-3 = 0; 4-8 = 1; 9-15 = 2.

12. stipe scale shape: ovate = 0; lanceolate = 1; linear = 2; round-peltate = 3; subulate = 4; stellate = 5.

13. stipe scale margins: entire = 0; with irregular processes = 1; erose = 2; denticulate = 3; cilio-denticulate (setose) = 4.

14. blade width (cm): less than 1 = 0; 1-2 = 1; 2-5 = 2; 5-10 = 3; more than 10 = 4.

15. blade base shape: narrowly cuneate = 0; broadly cuneate to rounded = 1; truncate = 2; cordate = 3.

16. blade length (cm): less than 3 = 0; 3-9 = 1; 10-30 = 2; more than 30 = 3.

17. blade texture: coriaceous = 0; chartaceous = 1.

18. blade shape: ovate = 0; linear = 1; narrowly oblong or elliptic = 2; broadly oblong or elliptic = 3; lanceolate = 4; oblanceolate = 5.

19. blade margin/dissection: entire = 0; flabellately dissected = 1; pinnate = 2; pedate = 3.

20. blade apex shape: attenuate = 0; acuminate = 1; caudate = 2; acute = 3; rounded = 4; cuspidate = 5.

21. blade apex bud: present = 0; absent = 1.

22. blade color: non-iridescent = 0; iridescent = 1.

23. blade white patches: present = 0; absent = 1.

24. blade scale: subulate = 0; plane (flat) = 1.

25. adaxial blade scale distribution: primarily along costae and margins = 0; evenly distributed = 1; mostly near base = 2; along adaxial
    margins = 3.

26. adaxial blade scale shape: linear, = 0; lanceolate to to linear-lanceolate = 1; ovate = 2; round-peltate = 3; stellate = 4.

27. adaxial blade scale color: brown to black = 0; mellious = 1; white = 2; orange to reddish = 3.

28. adaxial blade scale abundance: sparse (several scale widths between scales) = 0; scattered (scales not touching) = 1; imbricate = 2.

29. adaxial blade scale margins: entire = 0; erose = 1; cilio-denticulate = 2; denticulate = 3.

30. adaxial blade scale cilia length: about equaling the body width = 0; longer than the body width = 1.

31. blade glandular-resinous dots: absent = 0; present abaxially = 1.

32. abaxial blade scale shape: linear = 0; lanceolate to linear-lanceolate = 1; ovate = 2; stellate = 3; substellate = 4.

33. abaxial blade scale color: brown to black = 0; melleous = 1; white = 2; orange to reddish = 3.

34. abaxial blade scale abundance: sparse (several scale widths in between) = 0; scattered (not touching each other) = 1; imbricate = 2.

35. abaxial blade scale margin: entire = 0; erose = 1; cilio-denticulate = 2; denticulate = 3.

36. abaxial blade scale cilia length: about equaling the scale body width = 0; longer than the scale body width = 1.

37. blade capitate-glandular hairs: present = 0; absent = 1.

38. trichomidia: present = 0; absent = 1.

39. veins: free = 0; reticulate throughout = 1.

40. vein tips (non-hydathodous): not expanded = 0; expanded but laterally free = 1; expanded and united laterally to form a connecting
    vein

41. vein angle to costa (degrees): 40-55 = 0; 60-75 = 1; 80-85 = 2.

42. hydathodes: present = 0; absent = 1.

43. fertile frond length relative to sterile frond length: shorter = 0; equal = 1; longer = 2.

44. fertile stipe length relative to fertile frond: ca. 1/3 = 1; ca. 1/2 = 2; ca. 2/3 = 3; more than 2/3 = 4.

45. fertile blades different shape from sterile?: yes = 0; no = 1.

46. fertile blade shape: ovate = 0; linear = 1; narrowly oblong or elliptic = 2; broadly oblong or elliptic = 3; lanceolate = 4; oblanceolate =
    5.

47. intersporangia scales: present = 0; absent = 1.

48. spores, broad patterns: crested, solid, =0; crested, fenestrated = 1; broad ridges = 2; no crests or ridges, = 3.

49. spores, surface details: non-spiny = 0; short-spiny = 1; long-spiny = 2; sparsely spiculate = 3.