Xyris uleana

<<<<<Scapes>Spikes>Bracts>Bract number>Borders>Hairs

often pilose-ciliate1

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

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

22

2. 003-003-003-001-002-001

<<<<<Scapes>Spikes>Bracts>Bract number>Shape>Growth form

erect3

3. 003-003-003-001-003-001

<<<<Scapes>Spikes>Bracts>Bract number>Borders

with broad, scarious, borders4

4. 003-003-003-001-001

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

empty bracts5

5. 003-003-003-001-002

<<<<Scapes>Spikes>Bracts>Bract number>Shape

often with back alate-keeled and with excurrent dorsal area, with blade longer than spike, tip incurved-cucullate or6

6. 003-003-003-001-003

<<<Leaves>Margins>Veins>Colour

yellowish7

7. 002-008-001-001

<<<Scapes>Flowering>Shape>Length

2-3.5 mm8

8. 003-004-001-001

<<<Scapes>Spikes>Bracts>Bract number

several, and large papillose dorsal area, ,9

9. 003-003-003-001

<<Capsules>Seeds>Colour

pale amber10

10. 005-004-003

<<Capsules>Seeds>Length

0.5-0.7 mm11

11. 005-004-002

<<Capsules>Seeds>Shape

narrowly ovoid to ellipsoid12

12. 005-004-001

<<Capsules>Valves>Septa

eseptate13

13. 005-003-001

<<Lateral sepals>Anthers>Length

ca. 0.5 mm14

14. 004-006-001

<<Lateral sepals>Keel>Hairs

cilialate and/or papillose15

15. 004-003-001

<<Lateral sepals>Petals>Length

ca. 2 mm16

16. 004-004-002

<<Lateral sepals>Petals>Shape

obovate17

17. 004-004-001

<<Lateral sepals>Staminodes>Shape

bearded18

18. 004-005-001

<<Leaves>Blade>Shape

strongly flattened19

19. 002-007-001

<<Leaves>Blade>Width

1-3.5 mm wide20

20. 002-007-002

<<Leaves>Margins>Colour

often reddish21

21. 002-008-003

<<Leaves>Margins>Texture

smooth or distally papillose, surfaces mostly smooth22

22. 002-008-002

<<Leaves>Margins>Veins

with a -incrassate vein23

23. 002-008-001

<<Scapes>Flowering>Shape

broadly obovate to suborbicular, cucullate, , ecarinate24

24. 003-004-001

<<Scapes>Spikes>Bracts

bracts ;25

25. 003-003-003

<<Scapes>Spikes>Length

0.3-0.5(-10) cm long26

26. 003-003-002

<<Scapes>Spikes>Shape

broadly to narrowly ovoid27

27. 003-003-001

<Capsules>Length

ca. 1.5 mm28

28. 005-001

<Capsules>Placentation

placentation basal29

29. 005-002

<Capsules>Seeds

seeds , , .30

30. 005-004

<Capsules>Valves

valves ;31

31. 005-003

<Habit>Height

6-15(-22) cm high32

32. 001-001

<Habit>Stems

stems short33

33. 001-002

<Lateral sepals>Anthers

anthers .34

34. 004-006

<Lateral sepals>Keel

keel35

35. 004-003

<Lateral sepals>Length

2.5-3 mm36

36. 004-002

<Lateral sepals>Petals

petals , ;37

37. 004-004

<Lateral sepals>Shape

free to connate at base, strongly inequilateral, strongly curved38

38. 004-001

<Lateral sepals>Staminodes

staminodes ;39

39. 004-005

<Leaves>Blade

blade , ,40

40. 002-007

<Leaves>Colour

brown or tan41

41. 002-005

<Leaves>Growth form

erect or in fans42

42. 002-001

<Leaves>Hairs

eciliate43

43. 002-004

<Leaves>Length

3-10 cm44

44. 002-002

<Leaves>Ligula

mostly eligulate45

45. 002-006

<Leaves>Margins

margins thin or , , .46

46. 002-008

<Leaves>Sheaths

sheath keeled47

47. 002-003

<Scapes>Flowering

flowering bracts .48

48. 003-004

<Scapes>Shape

terete49

49. 003-002

<Scapes>Spikes

spikes , ,50

50. 003-003

<Scapes>Wing number

2-winged51

51. 003-001

Capsules

Capsule , ,52

52. 005

Citation

Lanjouw 1966 – In: Pulle, Fl. Sur. 1. p 237

Description

Cespitose, soft, annual, 6-15(-22) cm high, stems short. Leaves erect or in fans, 3-10 cm, sheath keeled, eciliate, brown or tan, mostly eligulate, blade strongly flattened, 1-3.5 mm wide, margins thin or with a yellowish-incrassate vein, smooth or distally papillose, surfaces mostly smooth, often reddish. Scapes distally 2-winged or terete; spikes broadly to narrowly ovoid, 0.3-0.5(-10) cm long, bracts several, with broad, scarious, often pilose-ciliate borders and large papillose dorsal area, empty bracts 2, often with back alate-keeled and with excurrent dorsal area, with blade longer than spike, tip incurved-cucullate or erect; flowering bracts broadly obovate to suborbicular, cucullate, 2-3.5 mm, ecarinate. Lateral sepals free to connate at base, strongly inequilateral, strongly curved, 2.5-3 mm, keel cilialate and/or papillose; petals obovate, ca. 2 mm; staminodes bearded; anthers ca. 0.5 mm. Capsule ca. 1.5 mm, placentation basal, valves eseptate; seeds narrowly ovoid to ellipsoid, 0.5-0.7 mm, pale amber.

Distribution

Amazonian Brazil present, SE Colombia present, Southern America: Brazil North (Amazonas present, Pará present), Suriname present

Northern South America, SE Colombia E to Suriname, S in Amazonian Brazil through Amazonas, Para.

Habit

Cespitose, soft, annual, , .53

53. 001

Lateral sepals

Lateral sepals , , ;54

54. 004

Leaves

Leaves , , , , , ,55

55. 002

Scapes

Scapes distally or ;56

56. 003

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