Dulacia guianensis

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Dulacia guianensis

Content

<<<<Calyx>Stamens>Staminodes>Ovary>Hairs

densely hairy as the lower half of the style1
1. 005-004-003-003-002

<<<<Calyx>Stamens>Staminodes>Ovary>Shape

conical, attenuate to the style2
2. 005-004-003-003-001

<<<Calyx>Stamens>Filaments>Hairs

hairy3
3. 005-004-002-001

<<<Calyx>Stamens>Staminodes>Hairs

hairy below4
4. 005-004-003-001

<<<Calyx>Stamens>Staminodes>Ovary

upper part of ovary ,5
5. 005-004-003-003

<<<Calyx>Stamens>Staminodes>Relative dimensions

nearly as long as petals6
6. 005-004-003-002

<<<Petiole>Blade>Apex>Shape

subacuminate-attenuate7
7. 003-002-004-001

<<<Petiole>Blade>Base>Shape

cuneate, slightly inequilateral8
8. 003-002-005-001

<<<Petiole>Blade>Primary veins>Shape

slightly raised above, papillose, prominent beneath9
9. 003-002-006-001

<<<Petiole>Blade>Secondary veins>Secondary vein pair number

(5-)6(-7) pairs10
10. 003-002-007-001

<<<Petiole>Blade>Secondary veins>Shape

rather irregularly arcuate-ascending11
11. 003-002-007-002

<<Calyx>Margins>Height

1 mm high12
12. 005-002-002

<<Calyx>Margins>Undulation number

5-undulate13
13. 005-002-001

<<Calyx>Petals>Colour

pale green or yellowish14
14. 005-003-003

<<Calyx>Petals>Dimensions

5-6(-7) x ca. 1.3 mm15
15. 005-003-004

<<Calyx>Petals>Shape

oblong-lanceolate, tip inflexed16
16. 005-003-001

<<Calyx>Petals>Texture

fleshy17
17. 005-003-002

<<Calyx>Stamens>Filaments

filaments ,18
18. 005-004-002

<<Calyx>Stamens>Length

4-5 mm long19
19. 005-004-001

<<Calyx>Stamens>Staminodes

staminodes , , .20
20. 005-004-003

<<Habit>Bark>Odor

with strong unpleasant scent21
21. 001-003-002

<<Habit>Bark>Texture

rough22
22. 001-003-001

<<Habit>Trunk>Buttresses

sometimes slightly buttressed23
23. 001-002-002

<<Habit>Trunk>Diameter

15-40 cm diam.24
24. 001-002-001

<<Inflorescences>Arrangement>Fork number

1-2-forked25
25. 004-002-001

<<Inflorescences>Pedicels>Length

1-2(-3) mm long26
26. 004-005-001

<<Inflorescences>Rachises>Hairs

papillose-puberulous as calyx and petals27
27. 004-004-002

<<Inflorescences>Rachises>Length

(0.5-)1-1.5(-2) cm long28
28. 004-004-001

<<Petiole>Blade>Apex

apex ,29
29. 003-002-004

<<Petiole>Blade>Base

base , glaucous beneath by a waxy coating (which disappears when the leaf is heated),30
30. 003-002-005

<<Petiole>Blade>Dimensions

6-10(-12) x (2-)2.5-4(-5) cm31
31. 003-002-003

<<Petiole>Blade>Primary veins

primary vein ,32
32. 003-002-006

<<Petiole>Blade>Secondary veins

secondary veins , .33
33. 003-002-007

<<Petiole>Blade>Shape

lanceolate to elliptic-oblong34
34. 003-002-002

<<Petiole>Blade>Texture

thin-chartaceous35
35. 003-002-001

<Branchlets>Hairs

with a fine patent pubescence36
36. 002-002

<Branchlets>Shape

longitudinally sulcate37
37. 002-001

<Calyx>Margins

margin , ;38
38. 005-002

<Calyx>Petals

petals , , , ;39
39. 005-003

<Calyx>Shape

cup-shaped40
40. 005-001

<Calyx>Stamens

stamens ,41
41. 005-004

<Fruits>Colour

yellow or orange42
42. 006-004

<Fruits>Dimensions

2-2.3 x 1.5(-2) cm in the dry state43
43. 006-002

<Fruits>Hairs

the umbonate top tomentulose44
44. 006-003

<Fruits>Shape

ellipsoid to subovoid, truncate at both ends45
45. 006-001

<Habit>Bark

bark , .46
46. 001-003

<Habit>Height

(6-)14-30 m tall47
47. 001-001

<Habit>Trunk

trunk , ;48
48. 001-002

<Inflorescences>Arrangement

simple or mostly racemes or panicles49
49. 004-002

<Inflorescences>Flower number

5-10(-16)-flowered50
50. 004-003

<Inflorescences>Pedicels

pedicels .51
51. 004-005

<Inflorescences>Position

axillary52
52. 004-001

<Inflorescences>Rachises

rachis , ;53
53. 004-004

<Petiole>Blade

blades , flexible, , ,54
54. 003-002

<Petiole>Dimensions

3-4(-7) x 1 mm55
55. 003-001

Branchlets

Branchlets , .56
56. 002

Calyx

Calyx shallowly ,57
57. 005

Common Name

Boni (French Guiana): balata kamwi, switi udu English (Guyana): hishirudan

Description

Shrub, or usually tree, (6-)14-30 m tall; trunk 15-40 cm diam., sometimes slightly buttressed; bark rough, with strong unpleasant scent. Branchlets longitudinally sulcate, with a fine patent pubescence. Petioles 3-4(-7) x 1 mm; blades thin-chartaceous, flexible, lanceolate to elliptic-oblong, 6-10(-12) x (2-)2.5-4(-5) cm, apex subacuminate-attenuate, base cuneate, slightly inequilateral, glaucous beneath by a waxy coating (which disappears when the leaf is heated), primary vein slightly raised above, papillose, prominent beneath, secondary veins (5-)6(-7) pairs, rather irregularly arcuate-ascending. Inflorescences axillary, simple or mostly 1-2-forked racemes or panicles, 5-10(-16)-flowered, rachis (0.5-)1-1.5(-2) cm long, papillose-puberulous as calyx and petals; pedicels 1-2(-3) mm long. Calyx shallowly cup-shaped, margin 5-undulate, 1 mm high; petals oblong-lanceolate, tip inflexed, fleshy, pale green or yellowish, 5-6(-7) x ca. 1.3 mm; stamens 4-5 mm long, filaments hairy, staminodes hairy below, nearly as long as petals, upper part of ovary conical, attenuate to the style, densely hairy as the lower half of the style. Fruit ellipsoid to subovoid, truncate at both ends, 2-2.3 x 1.5(-2) cm in the dry state, the umbonate top tomentulose, yellow or orange.

Distribution

Guianas present present, Southern America: Venezuela (Venezuela present)
Venezuela, the Guianas, and Brazil; 40 collections studied, 12 from the Guianas (GU: 6; SU: 3; FG: 3).

Fruits

Fruit , , , .58
58. 006

Habit

Shrub, or usually tree, ;59
59. 001

Individuals Association

Guyana, Bartica-Potaro Rd., FD 6092 Suriname, Nickerie, Lindeman & de Roon 739 Gallion near Cayenne, Jacquemin 2165 Guyana, Jacquemin Guyana, Kaieteur Plateau, Maguire & Fanshawe 23487 Guyana, Mabura Hill, Polak 8

Inflorescences

Inflorescences , , ,60
60. 004

Petiole

Petioles ;61
61. 003

Uses

Seeds said to be edible.