Herpetacanthus rotundatus

<<<<Flowers>Corolla>Lower lip>Shape>Dimensions

2 x 1.5 mm1

1. 005-002-006-001-001

<<<<Flowers>Corolla>Tube>Basal parts>Length

7 mm long2

2. 005-002-004-002-001

<<<<Flowers>Corolla>Tube>Upper parts>Width

6-7 mm wide at throat3

3. 005-002-004-003-001

<<<Capsules>Seeds>Shape>Colour

reddish-brown4

4. 006-005-001-001

<<<Flowers>Calyx>Anterior and lateral lobes>Width

0.4 mm wide5

5. 005-001-004-001

<<<Flowers>Calyx>Posterior lobes>Width

0.6 mm wide6

6. 005-001-003-001

<<<Flowers>Corolla>Lateral lobes>Dimensions

2 x 1 mm7

7. 005-002-007-002

<<<Flowers>Corolla>Lateral lobes>Shape

narrowly ovate8

8. 005-002-007-001

<<<Flowers>Corolla>Lower lip>Shape

ovate, , apically obtuse9

9. 005-002-006-001

<<<Flowers>Corolla>Tube>Basal parts

cylindrical basal part10

10. 005-002-004-002

<<<Flowers>Corolla>Tube>Length

11-12 mm long11

11. 005-002-004-001

<<<Flowers>Corolla>Tube>Upper parts

campanulate upper part12

12. 005-002-004-003

<<<Flowers>Corolla>Upper lip>Growth form

erect13

13. 005-002-005-001

<<<Flowers>Corolla>Upper lip>Length

3.8 mm long14

14. 005-002-005-003

<<<Flowers>Corolla>Upper lip>Shape

narrowly ovate15

15. 005-002-005-002

<<<Flowers>Ovary>Stigma>Length

0.5 mm long16

16. 005-005-004-001

<<<Flowers>Ovary>Style>Hairs

puberulous17

17. 005-005-003-001

<<<Flowers>Ovary>Style>Length

13 mm long18

18. 005-005-003-002

<<<Flowers>Stamens>Filaments>Length

22 and 44 mm long respectively19

19. 005-003-002-001

<<<Flowers>Stamens>Thecae>Hairs

crowned with a hairlike appendage20

20. 005-003-003-003

<<<Flowers>Stamens>Thecae>Length

1.1 mm long21

21. 005-003-003-001

<<<Flowers>Stamens>Thecae>Theca number

1-thecous22

22. 005-003-003-002

<<<Flowers>Stamens>Tube>Shape

campanulate23

23. 005-003-001-001

<<<Inflorescences>Bracts>Shape>Colour

pale green24

24. 004-005-001-003

<<<Inflorescences>Bracts>Shape>Dimensions

12-13 x 8-10 mm25

25. 004-005-001-001

<<<Inflorescences>Bracts>Shape>Vein number

3-4-veined26

26. 004-005-001-002

<<<Petiole>Blade>Apex>Shape

acute27

27. 003-003-004-001

<<<Petiole>Blade>Base>Shape

attenuate and decurrent on petiole28

28. 003-003-005-001

<<<Petiole>Blade>Margins>Margin type

entire to shallowly crenulate29

29. 003-003-006-001

<<Capsules>Body>Hairs

glabrous to sparingly puberulous30

30. 006-004-002

<<Capsules>Body>Shape

ellipsoid31

31. 006-004-001

<<Capsules>Seeds>Dimensions

2 x 1-1.5 mm32

32. 006-005-002

<<Capsules>Seeds>Shape

flattened, , irregularly orbicular33

33. 006-005-001

<<Capsules>Stipes>Length

4 mm long34

34. 006-003-001

<<Flowers>Calyx>Anterior and lateral lobes

anterior and lateral pairs ;35

35. 005-001-004

<<Flowers>Calyx>Hairs

glabrous36

36. 005-001-002

<<Flowers>Calyx>Length

3.5-4 mm long37

37. 005-001-001

<<Flowers>Calyx>Posterior lobes

posterior lobe ,38

38. 005-001-003

<<Flowers>Corolla>Colour

white or pale violet39

39. 005-002-001

<<Flowers>Corolla>Hairs

glabrous40

40. 005-002-003

<<Flowers>Corolla>Lateral lobes

lateral lobes , ;41

41. 005-002-007

<<Flowers>Corolla>Length

15-16 mm long42

42. 005-002-002

<<Flowers>Corolla>Lower lip

middle lobe of lower lip ,43

43. 005-002-006

<<Flowers>Corolla>Tube

tube , , ,44

44. 005-002-004

<<Flowers>Corolla>Upper lip

upper lip , , ,45

45. 005-002-005

<<Flowers>Ovary>Hairs

glabrous46

46. 005-005-001

<<Flowers>Ovary>Height

1 mm high47

47. 005-005-002

<<Flowers>Ovary>Stigma

stigma lobes .48

48. 005-005-004

<<Flowers>Ovary>Style

style , ,49

49. 005-005-003

<<Flowers>Pollen>Diameter

47 μm in diameter50

50. 005-004-001

<<Flowers>Stamens>Filaments

filaments ,51

51. 005-003-002

<<Flowers>Stamens>Thecae

anther thecae , anthers ;52

52. 005-003-003

<<Flowers>Stamens>Tube

part of corolla tube53

53. 005-003-001

<<Inflorescences>Bracteoles>Dimensions

4 x 0.6 mm54

54. 004-006-002

<<Inflorescences>Bracteoles>Hairs

glabrous55

55. 004-006-003

<<Inflorescences>Bracteoles>Shape

narrowly triangular56

56. 004-006-001

<<Inflorescences>Bracts>Hairs

glabrous, shortly ciliate57

57. 004-005-002

<<Inflorescences>Bracts>Shape

ovate-orbicular, , apically obtuse or subobtuse and minutely mucronulate, , , usually somewhat oblique58

58. 004-005-001

<<Inflorescences>Peduncle>Length

0.5-1 cm long59

59. 004-003-001

<<Inflorescences>Rachises>Hairs

glabrous to minutely pubescent60

60. 004-004-001

<<Petiole>Blade>Apex

apex ,61

61. 003-003-004

<<Petiole>Blade>Base

base ,62

62. 003-003-005

<<Petiole>Blade>Dimensions

6-14 x 4-6.5 cm63

63. 003-003-002

<<Petiole>Blade>Hairs

glabrous or subglabrous on both upper and lower surface64

64. 003-003-003

<<Petiole>Blade>Margins

margin ;65

65. 003-003-006

<<Petiole>Blade>Shape

elliptic to narrowly ovate66

66. 003-003-001

<<Petiole>Leaves>Shape

usually reduced, frequently more ovate and basally rounded than cauline leaves67

67. 003-005-001

<<Petiole>Secondary veins>Secondary vein pair number

8-10 pairs68

68. 003-004-001

<<Stems>Juvenile stems>Hairs

younger stem puberulous69

69. 002-002-001

<<Stems>Mature stems>Hairs

glabrate70

70. 002-003-001

<Capsules>Body

body , ;71

71. 006-004

<Capsules>Length

10 mm long72

72. 006-001

<Capsules>Seeds

seeds , .73

73. 006-005

<Capsules>Stipes

stipe ,74

74. 006-003

<Capsules>Width

3 mm wide75

75. 006-002

<Flowers>Calyx

calyx , ,76

76. 005-001

<Flowers>Corolla

corolla , , ,77

77. 005-002

<Flowers>Ovary

ovary , ,78

78. 005-005

<Flowers>Pollen

pollen ;79

79. 005-004

<Flowers>Stamens

stamens inserted in middle of ,80

80. 005-003

<Habit>Height

1-1.5 m tall81

81. 001-001

<Inflorescences>Bracteoles

bracteoles , , .82

82. 004-006

<Inflorescences>Bracts

bracts , ;83

83. 004-005

<Inflorescences>Length

3-4 cm long84

84. 004-002

<Inflorescences>Peduncle

peduncle ;85

85. 004-003

<Inflorescences>Rachises

rachis zigzag, ;86

86. 004-004

<Inflorescences>Spike number

solitary or in groups of 2 or 387

87. 004-001

<Petiole>Blade

blade , , ,88

88. 003-003

<Petiole>Hairs

puberulous89

89. 003-002

<Petiole>Leaves

leaves subtending inflorescence .90

90. 003-005

<Petiole>Length

0.5-2 cm long91

91. 003-001

<Petiole>Secondary veins

secondary veins prominent;92

92. 003-004

<Stems>Mature stems

older stem .93

93. 002-003

<Stems>Shape

subquadrangular94

94. 002-001

Capsules

Capsule , ,95

95. 006

Description

Shrub or subshrub, 1-1.5 m tall. Stem subquadrangular, branching, younger stem puberulous, older stem glabrate. Petiole 0.5-2 cm long, puberulous; blade elliptic to narrowly ovate, 6-14 x 4-6.5 cm, glabrous or subglabrous on both upper and lower surface, apex acute, base attenuate and decurrent on petiole, margin entire to shallowly crenulate; secondary veins 8-10 pairs prominent; leaves subtending inflorescence usually reduced, frequently more ovate and basally rounded than cauline leaves. Inflorescence terminating main and lateral branches, spikes solitary or in groups of 2 or 3, 3-4 cm long; peduncle 0.5-1 cm long; rachis zigzag, glabrous to minutely pubescent; bracts ovate-orbicular, 12-13 x 8-10 mm, apically obtuse or subobtuse and minutely mucronulate, 3-4-veined, pale green, usually somewhat oblique, glabrous, shortly ciliate; bracteoles narrowly triangular, 4 x 0.6 mm, glabrous. Flowers alternate, in pairs or single between paired bracts; calyx 3.5-4 mm long, glabrous, posterior lobe 0.6 mm wide, anterior and lateral pairs 0.4 mm wide; corolla white or pale violet, 15-16 mm long, glabrous, tube 11-12 mm long, cylindrical basal part 7 mm long, campanulate upper part 6-7 mm wide at throat, upper lip erect, narrowly ovate, 3.8 mm long, middle lobe of lower lip ovate, 2 x 1.5 mm, apically obtuse, lateral lobes narrowly ovate, 2 x 1 mm; stamens inserted in middle of campanulate part of corolla tube, filaments 22 and 44 mm long respectively, anther thecae 1.1 mm long, 1-thecous anthers crowned with a hairlike appendage; pollen 47 μm in diameter; ovary glabrous, 1 mm high, style puberulous, 13 mm long, stigma lobes 0.5 mm long. Capsule 10 mm long, 3 mm wide, stipe 4 mm long, body ellipsoid, glabrous to sparingly puberulous; seeds flattened, reddish-brown, irregularly orbicular, 2 x 1-1.5 mm.

Distribution

Amazonian Ecuador present, French Guiana present, Guianas present, Southern America: Peru (Peru present), Suriname present

Amazonian Ecuador, Peru and Brazil and in Suriname and French Guiana; 11 collections studied from the Guianas (SU: 4; FG: 7).

Flowers

Flowers alternate, in pairs or single between paired bracts;96

96. 005

Habit

Shrub or subshrub, .97

97. 001

Individuals Association

Suriname, Tapanahoni R., Poeloegoedoe, Gonggrijp 3739 Suriname, S foot of Tafelberg, Wessels Boer 1568 Haut Maroni, Itany, Cremers 4977 Saül and vicinity, Mori et al. 19180

Inflorescences

Inflorescence terminating main and lateral branches, spikes , ;98

98. 004

Petiole

Petiole , ;99

99. 003

Phenology

Flowers reported , fruits reported .

Stems

Stem , branching, ,100

100. 002

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