Chelonanthus angustifolius

<<<<Flowers>Calyx>Lobes>Fusion>Relative distance

ca. 4/5 of total length1

1. 005-002-003-001-001

<<<Flowers>Calyx>Apex>Shape

obtuse2

2. 005-002-005-001

<<<Flowers>Calyx>Lobes>Dimensions

2-6 x 2-5 mm3

3. 005-002-003-003

<<<Flowers>Calyx>Lobes>Fusion

fused for4

4. 005-002-003-001

<<<Flowers>Calyx>Lobes>Shape

ovate to circular5

5. 005-002-003-002

<<<Flowers>Calyx>Margins>Texture

membranaceous6

6. 005-002-004-001

<<<Flowers>Corolla>Apex>Shape

obtuse (acute)7

7. 005-003-006-001

<<<Flowers>Corolla>Lobes>Dimensions

3-9 x 3-15 mm8

8. 005-003-005-002

<<<Flowers>Corolla>Lobes>Shape

ovate or circular9

9. 005-003-005-001

<<<Flowers>Pistil>Ovary>Dimensions

3.2-4.3 x 1.9-2.4 mm10

10. 005-006-002-001

<<<Flowers>Pistil>Stigma lobes>Dimensions

1.5-2.4 x 1.1-2.4 mm11

11. 005-006-004-002

<<<Flowers>Pistil>Stigma lobes>Shape

orbicular12

12. 005-006-004-001

<<<Flowers>Pistil>Style>Length

20-40 mm long13

13. 005-006-003-001

<<<Flowers>Stamens>Anthers>Colour

white14

14. 005-004-002-001

<<<Flowers>Stamens>Anthers>Length

2.3-3.5 mm long15

15. 005-004-002-003

<<<Flowers>Stamens>Anthers>Shape

elliptic to slightly obovate16

16. 005-004-002-002

<<<Flowers>Stamens>Filaments>Length

17-35 mm long17

17. 005-004-001-001

<<<Inflorescences>Bracts>Apex>Shape

obtuse (acute)18

18. 004-002-003-001

<<<Leaves>Blade>Apex>Shape

acute to acuminate19

19. 003-002-005-001

<<<Leaves>Blade>Base>Shape

attenuate or cuneate20

20. 003-002-006-001

<<<Leaves>Blade>Margins>Shape

not thickened, flat21

21. 003-002-004-001

<<Flowers>Calyx>Apex

apex ;22

22. 005-002-005

<<Flowers>Calyx>Colour

green23

23. 005-002-001

<<Flowers>Calyx>Dimensions

4-9 x 3-7 mm24

24. 005-002-002

<<Flowers>Calyx>Lobes

lobes , , ,25

25. 005-002-003

<<Flowers>Calyx>Margins

margin ,26

26. 005-002-004

<<Flowers>Corolla>Apex

apex ;27

27. 005-003-006

<<Flowers>Corolla>Colour

white, cream, green or greenish yellow, with dark green spot on apex of each corolla lobe28

28. 005-003-001

<<Flowers>Corolla>Length

21-52 mm long29

29. 005-003-003

<<Flowers>Corolla>Lobes

lobes , ,30

30. 005-003-005

<<Flowers>Corolla>Shape

funnel-shaped to tubular31

31. 005-003-002

<<Flowers>Corolla>Width

10-32 mm wide at mouth32

32. 005-003-004

<<Flowers>Pistil>Length

29-32 mm long33

33. 005-006-001

<<Flowers>Pistil>Ovary

ovary ,34

34. 005-006-002

<<Flowers>Pistil>Stigma lobes

stigma lobes , .35

35. 005-006-004

<<Flowers>Pistil>Style

style ,36

36. 005-006-003

<<Flowers>Stamens>Anthers

anthers , , , straight after anthesis;37

37. 005-004-002

<<Flowers>Stamens>Filaments

filaments , mostly straight, curved downward close to anther,38

38. 005-004-001

<<Fruits>Seeds>Colour

brown39

39. 006-005-001

<<Fruits>Seeds>Diameter

0.1-0.5 mm in diam.40

40. 006-005-002

<<Inflorescences>Bracts>Apex

apex ;41

41. 004-002-003

<<Inflorescences>Bracts>Length

1.2-5 mm long42

42. 004-002-002

<<Inflorescences>Bracts>Shape

ovate to oblong43

43. 004-002-001

<<Inflorescences>Flower number per inflorescence>Flower number

1-60-flowered44

44. 004-001-001

<<Inflorescences>Pedicels>Length

2-24 mm long45

45. 004-003-001

<<Leaves>Blade>Apex

apex ,46

46. 003-002-005

<<Leaves>Blade>Base

base .47

47. 003-002-006

<<Leaves>Blade>Dimensions

1-21 x 0.2-3.7 cm48

48. 003-002-003

<<Leaves>Blade>Margins

margin ,49

49. 003-002-004

<<Leaves>Blade>Shape

linear, lanceolate or elliptic50

50. 003-002-002

<<Leaves>Blade>Texture

membranaceous (coriaceous)51

51. 003-002-001

<<Leaves>Petiole>Length

0-0.4 cm long52

52. 003-001-001

<<Stems and branches>Internodes>Length

0.5-17.4 cm long53

53. 002-004-001

<<Stems and branches>Wings>Width

0.1-0.3 mm wide54

54. 002-003-001

<Flowers>Calyx

calyx , ,55

55. 005-002

<Flowers>Corolla

corolla , , , ,56

56. 005-003

<Flowers>Growth form

erect to horizontal57

57. 005-001

<Flowers>Pistil

pistil ,58

58. 005-006

<Flowers>Pollen

pollen exine differentially reticulated with globules (see Nilsson, 1970, 2002);59

59. 005-005

<Flowers>Stamens

stamens not exserted,60

60. 005-004

<Fruits>Colour

brown61

61. 006-002

<Fruits>Dimensions

5-14 x 1-8 mm62

62. 006-004

<Fruits>Growth form

erect to horizontal63

63. 006-001

<Fruits>Seeds

seeds ,64

64. 006-005

<Fruits>Shape

ellipsoid65

65. 006-003

<Habit>Height

up to 1.6 m high66

66. 001-001

<Inflorescences>Bracts

bracts , ,67

67. 004-002

<Inflorescences>Pedicels

pedicel .68

68. 004-003

<Leaves>Blade

blade , , ,69

69. 003-002

<Leaves>Petiole

petiole ;70

70. 003-001

<Stems and branches>Diameter

up to 0.7 cm in diam.71

71. 002-001

<Stems and branches>Internodes

internodes .72

72. 002-004

<Stems and branches>Shape

terete to weakly quadrangular with or without small wings73

73. 002-002

<Stems and branches>Wings

wings ;74

74. 002-003

Description

Herb, up to 1.6 m high, unbranched to sparsley branched. Stems and branches up to 0.7 cm in diam., terete to weakly quadrangular with or without small wings, wings 0.1-0.3 mm wide; internodes 0.5-17.4 cm long. Leaves sessile to shortly petiolate, evenly cauline with internode between 2 most apical sets of leaves visibly longer; petiole 0-0.4 cm long; blade membranaceous (coriaceous), linear, lanceolate or elliptic, 1-21 x 0.2-3.7 cm, margin not thickened, flat, apex acute to acuminate, base attenuate or cuneate. Inflorescence 1-60-flowered; bracts ovate to oblong, 1.2-5 mm long, apex obtuse (acute); pedicel 2-24 mm long. Flowers erect to horizontal; calyx green, 4-9 x 3-7 mm, lobes fused for ca. 4/5 of total length, ovate to circular, 2-6 x 2-5 mm, margin membranaceous, apex obtuse; corolla white, cream, green or greenish yellow, with dark green spot on apex of each corolla lobe, funnel-shaped to tubular, 21-52 mm long, 10-32 mm wide at mouth, lobes ovate or circular, 3-9 x 3-15 mm, apex obtuse (acute); stamens not exserted, filaments 17-35 mm long, mostly straight, curved downward close to anther, anthers white, elliptic to slightly obovate, 2.3-3.5 mm long, straight after anthesis; pollen exine differentially reticulated with globules (see Nilsson, 1970, 2002); pistil 29-32 mm long, ovary 3.2-4.3 x 1.9-2.4 mm, style 20-40 mm long, stigma lobes orbicular, 1.5-2.4 x 1.1-2.4 mm. Fruit erect to horizontal, brown, ellipsoid, 5-14 x 1-8 mm; seeds brown, 0.1-0.5 mm in diam.

Distribution

Andes of Bolivia present, Brazilian Amazon present, Guianas present, Guyana present, Southern America: Brazil North (Acre present, Amazonas present, Roraima present); Colombia (Colombia present); Peru (Peru present); Venezuela (Venezuela present)

Colombia, Peru and Andes of Bolivia, Venezuela, Guyana, Brazilian Amazon (Acre, Amazonas, Roraima); 166 collections studied, of which 5 from the Guianas (GU: 5).

Flowers

Flowers ;75

75. 005

Fruits

Fruit , , , ;76

76. 006

Habit

Herb, , unbranched to sparsley branched.77

77. 001

Individuals Association

Guyana, Pakaraima Mts., Chinowieng Village, Henkel & Hoffman 238 Guyana, Utshi R. trail to Santa Elena, Clarke 937

Inflorescences

Inflorescence ;78

78. 004

Leaves

Leaves sessile to shortly petiolate, evenly cauline with internode between 2 most apical sets of leaves visibly longer;79

79. 003

Phenology

Flowering and fruiting .

Stems and branches

Stems and branches , ,80

80. 002

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