Roupala obtusata

<<<Flowers>Filaments>Anthers>Dimensions

2-4.5 x 0.3-0.5 mm1

1. 005-002-003-001

<<<Flowers>Ovary>Hairs>Colour

yellowish2

2. 005-004-001-002

<<<Flowers>Ovary>Hairs>Relative distance

extending (0.7-)1-1.5(-2.5) mm from base of ovary3

3. 005-004-001-001

<<<Fruits>Style>Hairs>Colour

beige to black4

4. 007-004-001-001

<<<Habit>Bark>Hairs>Colour

rufous5

5. 001-003-002-001

<<<Inflorescences>Bracts>Hairs>Colour

orange- to red-brown6

6. 003-006-002-001

<<<Leaves>Blade>Apex>Shape

obtuse to rounded, attenuate or acute7

7. 002-005-005-001

<<<Leaves>Blade>Base>Shape

cuneate, more rarely acute or obtuse decurrent, symmetrical8

8. 002-005-004-001

<<<Leaves>Blade>Margins>Margin type

entire9

9. 002-005-006-001

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

5-9 pairs10

10. 002-006-002-001

<<Flowers>Filaments>Anthers

anthers ;11

11. 005-002-003

<<Flowers>Filaments>Length

0-0.5 mm long12

12. 005-002-001

<<Flowers>Filaments>Relative distance

attached to tepals 4-9 mm from base13

13. 005-002-002

<<Flowers>Glands>Length

0.3-0.5 mm long14

14. 005-003-001

<<Flowers>Ovary>Hairs

hairs , extending slightly lower on one side, very short, to light ferrugineous, close appressed, sometimes glabrous15

15. 005-004-001

<<Fruits>Apex>Constriction

constricted only 1-1.5 mm16

16. 007-003-001

<<Fruits>Base>Constriction

constricted for (3-)5-7 mm17

17. 007-002-001

<<Fruits>Seeds>Dimensions

2.1-2.4 x 1.2 cm18

18. 007-005-001

<<Fruits>Style>Hairs

, glabrous even when immature19

19. 007-004-001

<<Habit>Bark>Colour

light brown or grey superficially, dark red-grey or grey beneath20

20. 001-003-001

<<Habit>Bark>Hairs

glabrous except axillary buds of short, appressed hairs21

21. 001-003-002

<<Habit>Lenticels>Lenticel number

numerous22

22. 001-004-001

<<Inflorescences>Bracts>Dimensions

0.3-0.5(-0.7) x 0.3-0.6 mm23

23. 003-006-001

<<Inflorescences>Bracts>Hairs

glabrous except for fimbriate margin and apex of hairs24

24. 003-006-002

<<Inflorescences>Flowers>Length

rarely 0.5-1.5 mm long25

25. 003-007-001

<<Inflorescences>Pedicels>Dimensions

1-2.5(-4.5) x 0.5-0.8(-1) mm26

26. 003-008-001

<<Inflorescences>Pedicels>Hairs

glabrous27

27. 003-008-002

<<Inflorescences>Peduncle>Dimensions

1-3 cm x 1-1.5 mm28

28. 003-004-001

<<Infructescences>Fruit pedicels>Dimensions

2.5-6 x 1-1.5 mm29

29. 006-003-001

<<Infructescences>Fruit pedicels>Hairs

glabrous30

30. 006-003-002

<<Leaves>Blade>Apex

apex ,31

31. 002-005-005

<<Leaves>Blade>Base

base ,32

32. 002-005-004

<<Leaves>Blade>Dimensions

4.5-21 x 2-7 cm33

33. 002-005-002

<<Leaves>Blade>Length relative to width

(length:breadth 1.5-5:1)34

34. 002-005-003

<<Leaves>Blade>Margins

margin , revolute towards base of blade;35

35. 002-005-006

<<Leaves>Blade>Shape

narrowly oblong, lanceolate or elliptic, also oblong, oblanceolate, narrowly obovate or widely elliptic36

36. 002-005-001

<<Leaves>Petiole>Hairs

glabrous37

37. 002-004-003

<<Leaves>Petiole>Length

(0.5-)1-2.5(-3) cm long38

38. 002-004-001

<<Leaves>Petiole>Width

1-2.5 mm broad at midlength39

39. 002-004-002

<<Leaves>Veins>Midveins

midvein reaching apex,40

40. 002-006-001

<<Leaves>Veins>Secondary veins

secondary veins .41

41. 002-006-002

<Flower buds>Hairs

glabrous or occasionally with short, weak hairs42

42. 004-002

<Flower buds>Width

1-1.5 mm broad at apex, 0.5-1 mm broad at midlength43

43. 004-001

<Flowers>Filaments

filaments , ,44

44. 005-002

<Flowers>Glands

hypogynous glands , closely appressed giving the appearance of a ring;45

45. 005-003

<Flowers>Length

6-12(-14) mm long46

46. 005-001

<Flowers>Ovary

ovary somewhat compressed longitudinally, .47

47. 005-004

<Fruits>Apex

apex straight to curved to an angle perpendicular to unsutured side, ,48

48. 007-003

<Fruits>Base

base markedly ,49

49. 007-002

<Fruits>Dimensions

2.8-3.8 x 1.2-1.6 cm50

50. 007-001

<Fruits>Seeds

seeds .51

51. 007-005

<Fruits>Style

style persistent forming sharp apex, surface conspicuously ridged, marginal vein generally protruding throughout periphery, ;52

52. 007-004

<Habit>Bark

branch bark , ;53

53. 001-003

<Habit>Diameter

10-50 cm diam.54

54. 001-002

<Habit>Height

2-20 m tall55

55. 001-001

<Habit>Lenticels

lenticels , minute.56

56. 001-004

<Inflorescences>Bracts

common bracts , ;57

57. 003-006

<Inflorescences>Dimensions

5-12(-17) x 1.5-3.5 cm58

58. 003-002

<Inflorescences>Flowers

flower-pair axis absent, ;59

59. 003-007

<Inflorescences>Hairs

glabrous60

60. 003-003

<Inflorescences>Pedicels

pedicels , .61

61. 003-008

<Inflorescences>Peduncle

peduncle ;62

62. 003-004

<Inflorescences>Position

axillary, rarely lateral63

63. 003-001

<Inflorescences>Sterile bracts

sterile bracts few, persistent;64

64. 003-005

<Infructescences>Fruit pedicels

fruit pedicels , .65

65. 006-003

<Infructescences>Hairs

glabrous66

66. 006-002

<Infructescences>Length

(5-)9-15 cm long67

67. 006-001

<Leaves>Blade

blade predominantly , ,68

68. 002-005

<Leaves>Colour

drying pale green, green-brown or brown and usually shiny above69

69. 002-002

<Leaves>Hairs

glabrous70

70. 002-003

<Leaves>Petiole

petiole not well defined, , , terete towards base, a scar often developing between branch and petiole (not stipular), smooth to slightly rugose, ;71

71. 002-004

<Leaves>Texture

coriaceous72

72. 002-001

<Leaves>Veins

venation raised on both surfaces, tertiary venation faint to obscure beneath, appearing eucamptodromous above, semicraspedodromous below, sometimes forming a double marginal vein,73

73. 002-006

Description

Tree 2-20 m tall, 10-50 cm diam.; branch bark light brown or grey superficially, dark red-grey or grey beneath, glabrous except rufous axillary buds of short, appressed hairs; lenticels numerous, minute. Leaves simple, or rarely with bisected midvein or extralaminal tissue as evidence of lobing, thinly coriaceous, drying pale green, green-brown or brown and usually shiny above, glabrous; petiole not well defined, (0.5-)1-2.5(-3) cm long, 1-2.5 mm broad at midlength, terete towards base, a scar often developing between branch and petiole (not stipular), smooth to slightly rugose, glabrous; blade predominantly narrowly oblong, lanceolate or elliptic, also oblong, oblanceolate, narrowly obovate or widely elliptic, 4.5-21 x 2-7 cm(length:breadth 1.5-5:1), base cuneate, more rarely acute or obtuse decurrent, symmetrical, apex obtuse to rounded, attenuate or acute, margin entire, revolute towards base of blade; venation raised on both surfaces, tertiary venation faint to obscure beneath, appearing eucamptodromous above, semicraspedodromous below, sometimes forming a double marginal vein, midvein reaching apex, secondary veins 5-9 pairs. Inflorescence axillary, rarely lateral, unbranched, 5-12(-17) x 1.5-3.5 cm, glabrous; peduncle 1-3 cm x 1-1.5 mm; sterile bracts few, persistent; common bracts 0.3-0.5(-0.7) x 0.3-0.6 mm, glabrous except for fimbriate margin and apex of orange- to red-brown hairs; flower-pair axis absent, rarely 0.5-1.5 mm long; pedicels 1-2.5(-4.5) x 0.5-0.8(-1) mm, glabrous. Flower buds 1-1.5 mm broad at apex, 0.5-1 mm broad at midlength, glabrous or occasionally with short, weak hairs. Flowers 6-12(-14) mm long; filaments 0-0.5 mm long, attached to tepals 4-9 mm from base, anthers 2-4.5 x 0.3-0.5 mm; hypogynous glands 0.3-0.5 mm long, closely appressed giving the appearance of a ring; ovary somewhat compressed longitudinally, hairs extending (0.7-)1-1.5(-2.5) mm from base of ovary, extending slightly lower on one side, very short, yellowish to light ferrugineous, close appressed, sometimes glabrous. Infructescence (5-)9-15 cm long, glabrous; fruit pedicels 2.5-6 x 1-1.5 mm, glabrous. Fruit 2.8-3.8 x 1.2-1.6 cm, both sides curved more or less equally, less commonly sutured side curved more strongly than unsutured side, base markedly constricted for (3-)5-7 mm, apex straight to curved to an angle perpendicular to unsutured side, constricted only 1-1.5 mm, style persistent forming sharp apex, surface conspicuously ridged, marginal vein generally protruding throughout periphery, beige to black, glabrous even when immature; seeds 2.1-2.4 x 1.2 cm.

Distribution

From 4° N of the equator in Amazonian Venezuela to 15° S in Mato Grosso, Brazil and between 56° and 67° W present, Guyana present

From 4° N of the equator in Amazonian Venezuela to 15° S in Mato Grosso, Brazil and between 56° and 67° W, and the unknown type locality in Guyana; (GU: 1).

Flower buds

Flower buds , .74

74. 004

Flowers

Flowers ;75

75. 005

Fruits

Fruit , both sides curved more or less equally, less commonly sutured side curved more strongly than unsutured side,76

76. 007

Habit

Tree , ;77

77. 001

Inflorescences

Inflorescence , unbranched, , ;78

78. 003

Infructescences

Infructescence , ;79

79. 006

Leaves

Leaves simple, or rarely with bisected midvein or extralaminal tissue as evidence of lobing, thinly , , ;80

80. 002

Phenology

Flowering and fruiting .

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