Combretum rohrii

<<<<Flowers>Calyx lobes>Apex>Hairs>Colour

orange-red1

1. 004-006-003-002-001

<<<Flowers>Calyx lobes>Apex>Hairs

moderately to densely -lepidote2

2. 004-006-003-002

<<<Flowers>Calyx lobes>Apex>Shape

acute3

3. 004-006-003-001

<<<Flowers>Disk>Margins>Length

0.5-1 mm long4

4. 004-009-002-001

<<<Flowers>Lower hypanthium>Hairs>Colour

orange-red5

5. 004-004-004-001

<<<Flowers>Lower hypanthium>Pedicel-like region>Length

0.5-1 mm long6

6. 004-004-003-001

<<<Flowers>Petals>Apex>Shape

obtuse to acute, sometimes apiculate7

7. 004-007-005-001

<<<Flowers>Petals>Base>Basal claw

without a claw8

8. 004-007-006-001

<<<Flowers>Petals>Base>Hairs

glabrous9

9. 004-007-006-002

<<<Flowers>Stamens>Filaments>Length

11.5-14.5 mm long10

10. 004-008-002-001

<<<Flowers>Upper hypanthium>Cupuliform region>Length

2.5-3.5 mm long11

11. 004-005-003-001

<<<Flowers>Upper hypanthium>Hairs>Colour

orange-red12

12. 004-005-004-001

<<<Flowers>Upper hypanthium>Infundibuliform region>Length

2-3 mm long13

13. 004-005-002-001

<<<Fruits>Base>Pseudostipe>Length

0.2-0.5 cm long14

14. 005-005-002-001

<<<Fruits>Base>Wings>Width

0.4-0.7 cm wide15

15. 005-005-003-002

<<<Fruits>Base>Wings>Wing number

416

16. 005-005-003-001

<<<Inflorescences>Racemes>Hairs>Colour

orange-red17

17. 003-002-003-001

<<<Leaves>Base>Hairs>Colour

orange-red18

18. 002-005-002-001

<<<Leaves>Petiole>Hairs>Colour

orange-red19

19. 002-007-002-001

<<<Leaves>Veins>Secondary veins>Secondary vein pair number

4-8 pairs20

20. 002-006-001-001

<<Flowers>Calyx lobes>Apex

apex , ;21

21. 004-006-003

<<Flowers>Calyx lobes>Growth form

erect22

22. 004-006-001

<<Flowers>Calyx lobes>Length

1-1.6 mm long23

23. 004-006-002

<<Flowers>Disk>Hairs

densely pubescent at margin with straight hairs24

24. 004-009-001

<<Flowers>Disk>Margins

distinct free margin25

25. 004-009-002

<<Flowers>Lower hypanthium>Angle number

4-angled26

26. 004-004-002

<<Flowers>Lower hypanthium>Hairs

contiguously -lepidote27

27. 004-004-004

<<Flowers>Lower hypanthium>Length

3-3.5 mm long28

28. 004-004-001

<<Flowers>Lower hypanthium>Pedicel-like region

pedicel-like region29

29. 004-004-003

<<Flowers>Ovules>Ovule number

3-530

30. 004-011-001

<<Flowers>Petals>Apex

apex ,31

31. 004-007-005

<<Flowers>Petals>Base

base , ;32

32. 004-007-006

<<Flowers>Petals>Dimensions

1.1-1.5 x 0.7-1 mm33

33. 004-007-003

<<Flowers>Petals>Petal number

434

34. 004-007-001

<<Flowers>Petals>Relative dimensions

usually falling short of calyx lobes but sometimes reaching ca. to their apex35

35. 004-007-004

<<Flowers>Petals>Shape

elliptic to suborbicular36

36. 004-007-002

<<Flowers>Stamens>Filaments

filaments ;37

37. 004-008-002

<<Flowers>Stamens>Stamen number

838

38. 004-008-001

<<Flowers>Style>Hairs

glabrous39

39. 004-010-002

<<Flowers>Style>Length

14-19.5 mm long40

40. 004-010-001

<<Flowers>Upper hypanthium>Cupuliform region

abruptly demarcated deeply cupuliform region above disk, , excl. calyx lobes41

41. 004-005-003

<<Flowers>Upper hypanthium>Dimensions

5.5-8 x 3.5-5 mm42

42. 004-005-001

<<Flowers>Upper hypanthium>Hairs

moderately to densely -lepidote43

43. 004-005-004

<<Flowers>Upper hypanthium>Infundibuliform region

narrowly infundibuliform region below disk,44

44. 004-005-002

<<Fruits>Apex>Shape

rounded or retuse and sometimes apiculate45

45. 005-004-001

<<Fruits>Base>Pseudostipe

very distinct narrow pseudostipe46

46. 005-005-002

<<Fruits>Base>Shape

rounded to truncate or slightly retuse47

47. 005-005-001

<<Fruits>Base>Wings

wings ,48

48. 005-005-003

<<Fruits>Hairs>Colour

orange-red49

49. 005-001-001

<<Inflorescences>Racemes>Hairs

glabrous, densely to contiguously -lepidote50

50. 003-002-003

<<Inflorescences>Racemes>Length

up to 56 cm long51

51. 003-002-002

<<Inflorescences>Racemes>Position

terminal52

52. 003-002-001

<<Leaves>Apex>Shape

usually shortly to long acuminate but sometimes acute or obtuse53

53. 002-004-001

<<Leaves>Base>Hairs

without hairs, moderately -lepidote below, sparsely or very sparsely so above54

54. 002-005-002

<<Leaves>Base>Shape

cuneate to rounded55

55. 002-005-001

<<Leaves>Petiole>Hairs

glabrous, densely to contiguously -lepidote56

56. 002-007-002

<<Leaves>Petiole>Length

0.4-1 cm long57

57. 002-007-001

<<Leaves>Veins>Secondary veins

secondary veins ;58

58. 002-006-001

<<Perianth>Marginal cells>Marginal cell number

ca. 20-4559

59. 006-002-001

<<Wood>Liana habit>Diameter

to 15 cm diam.60

60. 001-001-002

<<Wood>Liana habit>Length

to 30 m61

61. 001-001-001

<<Wood>Shrub habit>Height

to 2 m62

62. 001-002-001

<Flowers>Calyx lobes

calyx lobes , ,63

63. 004-006

<Flowers>Disk

disk , ;64

64. 004-009

<Flowers>Hairs

without hairs on outside65

65. 004-003

<Flowers>Length

8.5-11.5 mm long66

66. 004-002

<Flowers>Lower hypanthium

lower hypanthium , , , ,67

67. 004-004

<Flowers>Merosity

4-merous68

68. 004-001

<Flowers>Ovules

ovules .69

69. 004-011

<Flowers>Petals

petals , , , ,70

70. 004-007

<Flowers>Stamens

stamens , far exserted,71

71. 004-008

<Flowers>Style

style , exserted ca. as far as stamens, ;72

72. 004-010

<Flowers>Upper hypanthium

upper hypanthium , and , ;73

73. 004-005

<Fruits>Apex

apex ,74

74. 005-004

<Fruits>Base

base , ,75

75. 005-005

<Fruits>Dimensions

1.2-2.8 x 1.1-2.2 cm76

76. 005-002

<Fruits>Hairs

moderately to densely -lepidote especially on body77

77. 005-001

<Fruits>Shape

oblong-elliptic or elliptic to broadly so78

78. 005-003

<Inflorescences>Flowers

flowers borne densely around rhachis but in nature all swept up to vertical position from ± horizontal rhachis, with long exserted stamens forming 'bottle-brush' syndrome.79

79. 003-003

<Inflorescences>Length

5-18 cm long80

80. 003-001

<Inflorescences>Racemes

usually aggregated into racemes , at lower nodes in axils of normal leaves (usually fallen by fruiting, often by flowering), at upper nodes usually without or with much reduced subtending leaves,81

81. 003-002

<Leaves>Apex

apex ,82

82. 002-004

<Leaves>Base

base , ;83

83. 002-005

<Leaves>Dimensions

1.7-10.6 x 0.9-6 cm84

84. 002-003

<Leaves>Petiole

petiole , .85

85. 002-007

<Leaves>Shape

elliptic86

86. 002-002

<Leaves>Texture

chartaceous to subcoriaceous87

87. 002-001

<Leaves>Veins

venation usually eucamptodromous-brochidodromous, sometimes eucamptodromous or brochidodromous,88

88. 002-006

<Perianth>Diameter

ca. 70-175 µm diam.89

89. 006-001

<Perianth>Marginal cells

marginal cells .90

90. 006-002

<Wood>Hairs

‘combretaceous hairs’ (only inside flowers) and peltate scales present.91

91. 001-003

<Wood>Liana habit

Woody liana , stems92

92. 001-001

<Wood>Shrub habit

shrub93

93. 001-002

Description

Woody liana to 30 m, stems to 15 cm diam., or shrub to 2 m; ‘combretaceous hairs’ (only inside flowers) and peltate scales present. Leaves opposite, chartaceous to subcoriaceous, elliptic, 1.7-10.6 x 0.9-6 cm, apex usually shortly to long acuminate but sometimes acute or obtuse, base cuneate to rounded, without hairs, moderately orange-red-lepidote below, sparsely or very sparsely so above; venation usually eucamptodromous-brochidodromous, sometimes eucamptodromous or brochidodromous, secondary veins 4-8 pairs; petiole 0.4-1 cm long, glabrous, densely to contiguously orange-red-lepidote. Inflorescence unbranched, stout, in opposite pairs in leaf-axils, 5-18 cm long, usually aggregated into terminal racemes up to 56 cm long, at lower nodes in axils of normal leaves (usually fallen by fruiting, often by flowering), at upper nodes usually without or with much reduced subtending leaves, glabrous, densely to contiguously orange-red-lepidote; flowers borne densely around rhachis but in nature all swept up to vertical position from ± horizontal rhachis, with long exserted stamens forming 'bottle-brush' syndrome. Flowers, 4-merous, 8.5-11.5 mm long, without hairs on outside; lower hypanthium 3-3.5 mm long, 4-angled, pedicel-like region 0.5-1 mm long, contiguously orange-red-lepidote,upper hypanthium 5.5-8 x 3.5-5 mm, narrowly infundibuliform region below disk, 2-3 mm long and abruptly demarcated deeply cupuliform region above disk, 2.5-3.5 mm long, excl. calyx lobes, moderately to densely orange-red-lepidote; calyx lobes erect, 1-1.6 mm long, apex acute, moderately to densely orange-red-lepidote; petals 4, elliptic to suborbicular, 1.1-1.5 x 0.7-1 mm, usually falling short of calyx lobes but sometimes reaching ca. to their apex, apex obtuse to acute, sometimes apiculate, base without a claw, glabrous; stamens 8, far exserted, filaments 11.5-14.5 mm long; disk densely pubescent at margin with straight hairs, distinct free margin 0.5-1 mm long; style 14-19.5 mm long, exserted ca. as far as stamens, glabrous; ovules 3-5. Fruit moderately to densely orange-red-lepidote especially on body, 1.2-2.8 x 1.1-2.2 cm, oblong-elliptic or elliptic to broadly so, apex rounded or retuse and sometimes apiculate, base rounded to truncate or slightly retuse, very distinct narrow pseudostipe 0.2-0.5 cm long, wings 4, 0.4-0.7 cm wideScales ca. 70-175 µm diam., marginal cells ca. 20-45.

Distribution

French Guiana present, Guianas present, NE Brazil present, Southern America: Brazil North (Amapá present), eastern Para present, mouth of Amazon R., from ca. 5° N to ca. 4° S present

Restricted to French Guiana, NE Brazil (eastern Pará and Amapá) and mouth of Amazon R., from ca. 5° N to ca. 4° S; 3 specimens seen from the Guianas in addition to the type and 3 old paratypes (see Exell 1953) (FG: 7).

Flowers

Flowers, , , ;94

94. 004

Fruits

Fruit , , ,95

95. 005

Individuals Association

Cayenne, Oldeman B-673 Saül, Circuit Grand Boeuf Mort, Mori et al. 18625

Inflorescences

Inflorescence unbranched, stout, in opposite pairs in leaf-axils, , ;96

96. 003

Leaves

Leaves opposite, , , ,97

97. 002

Perianth

Scales ,98

98. 006

Phenology

Flowering .

Wood

, or ;99

99. 001

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