Nelsonia canescens

<<<<Inflorescences>Bracts>Margins>Hairs>Shape

filiform1

1. 004-003-002-002-001

<<<Flowers>Calyx>Anterior lobes>Dimensions

2.5-3.6 x 0.5-1.3 mm2

2. 005-001-004-002

<<<Flowers>Calyx>Anterior lobes>Shape

lanceolate3

3. 005-001-004-001

<<<Flowers>Calyx>Anterior lobes>Vein number

8-veined4

4. 005-001-004-003

<<<Flowers>Calyx>Lateral lobes>Dimensions

3-4 x 0.5-0.8 mm5

5. 005-001-003-002

<<<Flowers>Calyx>Lateral lobes>Shape

lanceolate6

6. 005-001-003-001

<<<Flowers>Calyx>Lateral lobes>Vein number

1-3-veined7

7. 005-001-003-003

<<<Flowers>Calyx>Posterior lobes>Dimensions

3-3.6 x 1.2-1.5 mm8

8. 005-001-002-002

<<<Flowers>Calyx>Posterior lobes>Shape

ovate9

9. 005-001-002-001

<<<Flowers>Calyx>Posterior lobes>Vein number

5-8-veined10

10. 005-001-002-003

<<<Flowers>Corolla>Limbs>Width

ca. 2 mm wide11

11. 005-002-005-001

<<<Flowers>Corolla>Tube>Length

3-5 mm long12

12. 005-002-004-001

<<<Flowers>Filaments>Thecae>Length

0.4 mm long13

13. 005-003-002-001

<<<Flowers>Ovary>Style>Hairs

glabrous14

14. 005-004-002-002

<<<Flowers>Ovary>Style>Length

ca. 0.8 mm long15

15. 005-004-002-001

<<<Inflorescences>Bracts>Margins>Hairs

abaxial surface pubescent with long, trichomes mixed with shorter glandular ones16

16. 004-003-002-002

<<<Inflorescences>Bracts>Margins>Margin type

entire17

17. 004-003-002-001

<<<Inflorescences>Bracts>Shape>Dimensions

4-6 x 2-4 mm18

18. 004-003-001-001

<<<Inflorescences>Fascicles>Lateral spikes>Length

20-25(-50) mm long19

19. 004-001-003-001

<<<Inflorescences>Fascicles>Spikes>Length

2.5-5 cm long20

20. 004-001-001-002

<<<Inflorescences>Fascicles>Spikes>Position

terminal21

21. 004-001-001-003

<<<Inflorescences>Fascicles>Spikes>Shape

quadrangular22

22. 004-001-001-001

<<<Inflorescences>Fascicles>Spikes>Spike number per fascicle

1-323

23. 004-001-001-004

<<<Petiole>Blade>Margins>Margin type

entire or undulate24

24. 003-003-003-001

<<<Petiole>Blade>Shape>Dimensions

4-7 x 2-3.5 cm25

25. 003-003-001-001

<<Capsules>Seeds>Seed number

usually ca. 2826

26. 006-003-001

<<Flowers>Calyx>Anterior lobes

anterior lobe , usually apically notched, rarely entire or twice notched, , ca. ;27

27. 005-001-004

<<Flowers>Calyx>Hairs

usually with dense, long, fine, eglandular trichomes at base28

28. 005-001-001

<<Flowers>Calyx>Lateral lobes

lateral lobes , , ,29

29. 005-001-003

<<Flowers>Calyx>Posterior lobes

posterior lobe , , ,30

30. 005-001-002

<<Flowers>Corolla>Colour

white31

31. 005-002-001

<<Flowers>Corolla>Hairs

glabrous or minutely puberulous32

32. 005-002-003

<<Flowers>Corolla>Length

7 mm long33

33. 005-002-002

<<Flowers>Corolla>Limbs

limb ,34

34. 005-002-005

<<Flowers>Corolla>Tube

tube ,35

35. 005-002-004

<<Flowers>Corolla>Upper lobes

upper lobes, slightly shorter than lower ones;36

36. 005-002-006

<<Flowers>Filaments>Length

0.3-0.5 mm long37

37. 005-003-001

<<Flowers>Filaments>Thecae

anther thecae parallel in bud, divergent in flower, , apically with a small, hook-like mucro;38

38. 005-003-002

<<Flowers>Ovary>Length

0.9-1 mm long39

39. 005-004-001

<<Flowers>Ovary>Style

style , .40

40. 005-004-002

<<Inflorescences>Bracts>Margins

margin , .41

41. 004-003-002

<<Inflorescences>Bracts>Shape

ovate, , imbricate, apically acute42

42. 004-003-001

<<Inflorescences>Fascicles>Central spike

central spike sessile or pedunculate43

43. 004-001-002

<<Inflorescences>Fascicles>Lateral spikes

lateral spikes with peduncles of44

44. 004-001-003

<<Inflorescences>Fascicles>Spikes

spikes , , solitary or arranged in fascicles of spikes45

45. 004-001-001

<<Inflorescences>Rachises>Hairs

densely sericeous46

46. 004-002-001

<<Petiole>Blade>Hairs

glabrous or nearly so and glandular punctate on upper surface, sparsely to moderately pubescent and glandular punctate on lower surface47

47. 003-003-002

<<Petiole>Blade>Margins

margin ;48

48. 003-003-003

<<Petiole>Blade>Shape

ovate, , acute at apex, attenuate and decurrent on petiole at base49

49. 003-003-001

<<Petiole>Leaves>Dimensions

8-22 x 4-12 mm50

50. 003-004-001

<<Petiole>Leaves>Hairs

more densely pubescent than cauline leaves51

51. 003-004-002

<<Stems>Juvenile stems>Hairs

younger stem moderately pubescent52

52. 002-001-001

<<Stems>Mature stems>Hairs

glabrate53

53. 002-002-001

<Capsules>Dimensions

4-4.8 x 1.5 mm54

54. 006-001

<Capsules>Hairs

glabrous55

55. 006-002

<Capsules>Seeds

seeds .56

56. 006-003

<Flowers>Calyx

calyx ,57

57. 005-001

<Flowers>Corolla

corolla , , ,58

58. 005-002

<Flowers>Filaments

filaments ,59

59. 005-003

<Flowers>Ovary

ovary ,60

60. 005-004

<Habit>Height

10-30 cm tall61

61. 001-002

<Habit>Length

to 70 cm long62

62. 001-001

<Habit>Nodes

often rooting at node.63

63. 001-003

<Inflorescences>Bracts

bracts ,64

64. 004-003

<Inflorescences>Fascicles

, ,65

65. 004-001

<Inflorescences>Rachises

rachis ;66

66. 004-002

<Petiole>Blade

blade , ,67

67. 003-003

<Petiole>Hairs

moderately pubescent68

68. 003-002

<Petiole>Leaves

leaves subtending inflorescence reduced and intergrading with bracts, , .69

69. 003-004

<Petiole>Length

2-10 mm long70

70. 003-001

<Stems>Mature stems

older stem .71

71. 002-002

Capsules

Capsule , ,72

72. 006

Description

Creeping or decumbent herb, to 70 cm long and 10-30 cm tall; often rooting at node. Stem slender, prostrate or ascending, younger stem moderately pubescent, older stem glabrate. Petiole 2-10 mm long, moderately pubescent; blade ovate, 4-7 x 2-3.5 cm, acute at apex, attenuate and decurrent on petiole at base, glabrous or nearly so and glandular punctate on upper surface, sparsely to moderately pubescent and glandular punctate on lower surface, margin entire or undulate; leaves subtending inflorescence reduced and intergrading with bracts, 8-22 x 4-12 mm, more densely pubescent than cauline leaves. Inflorescence terminating main and lateral branches, spikes quadrangular, 2.5-5 cm long, solitary or arranged in terminal fascicles of 1-3 spikes, central spike sessile or pedunculate, lateral spikes with peduncles of 20-25(-50) mm long, rachis densely sericeous; bracts ovate, 4-6 x 2-4 mm, imbricate, apically acute, margin entire, abaxial surface pubescent with long, filiform trichomes mixed with shorter glandular ones. Flowers subsessile; calyx usually with dense, long, fine, eglandular trichomes at base, posterior lobe ovate, 3-3.6 x 1.2-1.5 mm, 5-8-veined, lateral lobes lanceolate, 3-4 x 0.5-0.8 mm, 1-3-veined, anterior lobe lanceolate, usually apically notched, rarely entire or twice notched, 2.5-3.6 x 0.5-1.3 mm, ca. 8-veined; corolla white, 7 mm long, glabrous or minutely puberulous, tube 3-5 mm long, limb ca. 2 mm wide, upper lobes, slightly shorter than lower ones; filaments 0.3-0.5 mm long, anther thecae parallel in bud, divergent in flower, 0.4 mm long, apically with a small, hook-like mucro; ovary 0.9-1 mm long, style ca. 0.8 mm long, glabrous. Capsule 4-4.8 x 1.5 mm, glabrous, seeds usually ca. 28.

Distribution

Andes present, French Guiana present, NE Brazil present, Northern America, Southern America: Bolivia (Bolivia present)

Mexico southward through the Andes to Bolivia, eastward to French Guiana and NE Brazil; 10 collections studied, 3 from French Guiana: Lemée s.n. (anno 1901); Sagot 1313; Mahury, Sagot s.n. (anno 1858).

Flowers

Flowers subsessile;73

73. 005

Habit

Creeping or decumbent herb, and ;74

74. 001

Inflorescences

Inflorescence terminating main and lateral branches, ,75

75. 004

Petiole

Petiole , ;76

76. 003

Phenology

Flowering and fruiting .

Stems

Stem slender, prostrate or ascending, ,77

77. 002

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