Xyris malmeana

<<<<<Scapes>Spikes>Bracts>Floral bracts>Shape>Length

4-6 mm1

1. 003-004-004-004-001-001

<<<<Scapes>Spikes>Bracts>Empty bracts>Bract number

22

2. 003-004-004-003-001

<<<<Scapes>Spikes>Bracts>Empty bracts>Relative dimensions

much shorter than the flowering ones3

3. 003-004-004-003-002

<<<<Scapes>Spikes>Bracts>Floral bracts>Colour

greenish4

4. 003-004-004-004-002

<<<<Scapes>Spikes>Bracts>Floral bracts>Shape

broadly elliptic to obovate, apically rounded to acute, sometimes carinate, , dorsal area short, narrow5

5. 003-004-004-004-001

<<<Leaves>Sheaths>Hairs>Colour

brown, variously brown6

6. 002-003-002-001

<<<Scapes>Spikes>Bracts>Bract number

several7

7. 003-004-004-001

<<<Scapes>Spikes>Bracts>Empty bracts

the lowest empty,8

8. 003-004-004-003

<<<Scapes>Spikes>Bracts>Floral bracts

these ,9

9. 003-004-004-004

<<<Scapes>Spikes>Bracts>Margins

thin-margined10

10. 003-004-004-002

<<Capsules>Seeds>Colour

deep amber11

11. 005-004-003

<<Capsules>Seeds>Length

ca. 0.5 mm12

12. 005-004-002

<<Capsules>Seeds>Shape

broadly ellipsoid13

13. 005-004-001

<<Capsules>Valves>Septa

eseptate14

14. 005-003-001

<<Lateral sepals>Anthers>Length

1 mm15

15. 004-005-001

<<Lateral sepals>Keel>Hairs

lacerate-ciliolate or distantly lacerate16

16. 004-002-001

<<Lateral sepals>Petals>Length

ca. 4 mm17

17. 004-003-002

<<Lateral sepals>Petals>Shape

obovate18

18. 004-003-001

<<Lateral sepals>Staminodes>Shape

bearded19

19. 004-004-001

<<Leaves>Blade>Shape

narrowly linear to filiform, flattened or angled20

20. 002-004-001

<<Leaves>Blade>Width

1.5-3 mm wide21

21. 002-004-002

<<Leaves>Margins>Texture

smooth or tuberculate22

22. 002-005-001

<<Leaves>Sheaths>Hairs

-ciliate (rarely glabrous)23

23. 002-003-002

<<Leaves>Sheaths>Shape

abruptly dilated24

24. 002-003-001

<<Scapes>Ribs>Rib number

3 or more25

25. 003-003-001

<<Scapes>Ribs>Texture

smooth or papillose26

26. 003-003-002

<<Scapes>Spikes>Bracts

bracts , in a spiral, convex, , , .27

27. 003-004-004

<<Scapes>Spikes>Colour

red-brown or dull brown28

28. 003-004-003

<<Scapes>Spikes>Length

0.5-1 cm29

29. 003-004-002

<<Scapes>Spikes>Shape

broadly ellipsoid to ovoid or subglobose30

30. 003-004-001

<Capsules>Length

3.5-4 mm31

31. 005-001

<Capsules>Placentation

placentation basal32

32. 005-002

<Capsules>Seeds

seeds , , .33

33. 005-004

<Capsules>Valves

valves ;34

34. 005-003

<Habit>Height

40-60 cm high35

35. 001-002

<Habit>Stems

stems short36

36. 001-003

<Habit>Texture

smooth37

37. 001-001

<Lateral sepals>Anthers

anthers .38

38. 004-005

<Lateral sepals>Keel

keel , rarely entire39

39. 004-002

<Lateral sepals>Length

ca. 5 mm40

40. 004-001

<Lateral sepals>Petals

petals , ;41

41. 004-003

<Lateral sepals>Staminodes

staminodes ;42

42. 004-004

<Leaves>Blade

blade , ,43

43. 002-004

<Leaves>Growth form

erect44

44. 002-001

<Leaves>Length

10-40 cm45

45. 002-002

<Leaves>Margins

margins .46

46. 002-005

<Leaves>Sheaths

sheath short, and47

47. 002-003

<Scapes>Ribs

with low but sharp, ribs48

48. 003-003

<Scapes>Shape

filiform, distally subterete49

49. 003-001

<Scapes>Spikes

spikes , , ,50

50. 003-004

<Scapes>Thickness

ca. 0.5 mm thick51

51. 003-002

Capsules

Capsule , ,52

52. 005

Description

Slender, smooth, subbulbous, perennial, 40-60 cm high, stems short. Leaves erect, 10-40 cm, sheath short, abruptly dilated and brown, variously brown-ciliate (rarely glabrous), blade narrowly linear to filiform, flattened or angled, 1.5-3 mm wide, margins smooth or tuberculate. Scapes filiform, distally subterete, ca. 0.5 mm thick, with 3 or more low but sharp, smooth or papillose ribs; spikes broadly ellipsoid to ovoid or subglobose, 0.5-1 cm, red-brown or dull brown, bracts several, in a spiral, convex, thin-margined, the lowest 2 empty, much shorter than the flowering ones, these broadly elliptic to obovate, apically rounded to acute, sometimes carinate, 4-6 mm, dorsal area short, narrow, greenish. Lateral sepals free, slightly inequilateral, curved, ca. 5 mm, keel lacerate-ciliolate or distantly lacerate, rarely entire; petals obovate, ca. 4 mm; staminodes bearded; anthers 1 mm. Capsule 3.5-4 mm, placentation basal, valves eseptate; seeds broadly ellipsoid, ca. 0.5 mm, deep amber.

Distribution

Amazonian Brazil present, French Guiana present, S Amazonas present, Southern America: Venezuela (Venezuela present), Trinidad present

S Amazonas, Venezuela E to French Guiana, S through Amazonian Brazil; Trinidad.

Habit

Slender, , subbulbous, perennial, , .53

53. 001

Individuals Association

Macenta, 2000-2500 ft, J.T. Baldwin 9823 Guyana, Monkey Pond Landing to Mt. Makarapan, Maas et al. 7634 Guyana, Rupununi Northern Savanna, St. Ignatius, Goodland 336 route Cayenne-Rochambeau, F. Halle 438 Suriname, Savanna near Sapende, upper Commewijne R., Lindeman 4233

Lateral sepals

Lateral sepals free, slightly inequilateral, curved, , ;54

54. 004

Leaves

Leaves , , ,55

55. 002

Scapes

Scapes , , ;56

56. 003

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