Matayba laevigata

Primary tabs

Matayba laevigata

Content

<<<Calyx>Petals>Apex>Shape

retuse or truncate at apex1
1. 006-005-004-001

<<<Calyx>Stamens>Filaments>Hairs

pubescent on lower half2
2. 006-008-003-001

<<<Leaves>Leaflets>Apex>Shape

obtusely acuminate, acuminate or obtuse and usually emarginate3
3. 003-003-007-001

<<<Leaves>Leaflets>Base>Shape

acute or obtuse4
4. 003-003-006-001

<<<Leaves>Leaflets>Margins>Margin type

entire, crenulate5
5. 003-003-008-001

<<Calyx>Appendages>Appendage number

26
6. 006-006-001

<<Calyx>Appendages>Hairs

lanose7
7. 006-006-002

<<Calyx>Disk>Hairs

glabrous8
8. 006-007-001

<<Calyx>Lobes>Length

3-4 mm long9
9. 006-004-002

<<Calyx>Lobes>Shape

triangular-rounded10
10. 006-004-001

<<Calyx>Ovary>Hairs

sericeous-tomentose11
11. 006-010-001

<<Calyx>Petals>Apex

;12
12. 006-005-004

<<Calyx>Petals>Colour

white13
13. 006-005-001

<<Calyx>Petals>Length

ca. 1.5 mm long14
14. 006-005-003

<<Calyx>Petals>Shape

cuneate15
15. 006-005-002

<<Calyx>Pistillode>Hairs

lanose16
16. 006-009-001

<<Calyx>Stamens>Filaments

the filaments ;17
17. 006-008-003

<<Calyx>Stamens>Length

2-2.5 mm long18
18. 006-008-002

<<Calyx>Stamens>Stamen number

819
19. 006-008-001

<<Capsules>Endocarp>Hairs

densely wooly20
20. 007-006-001

<<Flowers>Pedicels>Hairs

pubescent21
21. 005-001-002

<<Flowers>Pedicels>Length

0-1 mm long22
22. 005-001-001

<<Leaves>Leaflets>Apex

the apex ,23
23. 003-003-007

<<Leaves>Leaflets>Base

the base slightly unequal, ,24
24. 003-003-006

<<Leaves>Leaflets>Dimensions

3-14 × 2.2-6 cm25
25. 003-003-005

<<Leaves>Leaflets>Hairs

glabrous or abaxially puberulent26
26. 003-003-003

<<Leaves>Leaflets>Leaflet number

4-827
27. 003-003-001

<<Leaves>Leaflets>Margins

the margins , and slightly revolute;28
28. 003-003-008

<<Leaves>Leaflets>Shape

elliptic, oblanceolate29
29. 003-003-004

<<Leaves>Leaflets>Texture

chartaceous30
30. 003-003-002

<<Leaves>Petiole plus rachis>Hairs

puberulent31
31. 003-001-002

<<Leaves>Petiole plus rachis>Length

5.5-20 cm long32
32. 003-001-001

<<Leaves>Petiolule>Colour

usually drying blackish33
33. 003-002-003

<<Leaves>Petiolule>Length

3-5 mm long34
34. 003-002-001

<<Leaves>Petiolule>Shape

widened at base35
35. 003-002-002

<<Seeds>Arillodes>Colour

white arillode, except for the dorsal portion of apex which is black and shiny36
36. 008-003-001

<<Stems>Hairs>Colour

ferruginous37
37. 002-001-001

<<Thyrses>Axes>Hairs

puberulent to appressedly pubescent38
38. 004-004-001

<Calyx>Appendages

appendages , , as long as the petal, marginal;39
39. 006-006

<Calyx>Disk

disc , annular;40
40. 006-007

<Calyx>Hairs

albo-pubescent or sparsely so41
41. 006-002

<Calyx>Length

ca. 0.8 mm long42
42. 006-003

<Calyx>Lobes

the lobes , ;43
43. 006-004

<Calyx>Ovary

ovary .44
44. 006-010

<Calyx>Petals

petals , , ,45
45. 006-005

<Calyx>Pistillode

pistillode ;46
46. 006-009

<Calyx>Shape

cup-shaped47
47. 006-001

<Calyx>Stamens

stamens , ,48
48. 006-008

<Capsules>Diameter

ca. 2 cm in diam.49
49. 007-002

<Capsules>Endocarp

endocarp .50
50. 007-006

<Capsules>Hairs

glabrous51
51. 007-003

<Capsules>Pericarp

pericarp woody,52
52. 007-005

<Capsules>Shape

globose or globose-bilobed53
53. 007-001

<Capsules>Texture

verrucose when mature54
54. 007-004

<Flowers>Pedicels

pedicels , .55
55. 005-001

<Habit>Height

to 18 m tall56
56. 001-001

<Leaves>Abaxial surfaces

abaxial surface with prominent midvein, and one or two domatia in the axil of the lowest secondary veins, tertiary veins reticulate.57
57. 003-004

<Leaves>Leaflets

leaflets , alternate, , , , ,58
58. 003-003

<Leaves>Petiole plus rachis

petiole plus rachis , slightly marginate, ;59
59. 003-001

<Leaves>Petiolule

petiolules , , ;60
60. 003-002

<Seeds>Arillodes

almost completely covered by a61
61. 008-003

<Seeds>Length

ca. 1 cm long62
62. 008-001

<Seeds>Shape

ellipsoid63
63. 008-002

<Stems>Hairs

-puberulent, glabrescent64
64. 002-001

<Thyrses>Axes

axes , slightly striate.65
65. 004-004

<Thyrses>Length

to 20 cm long66
66. 004-002

<Thyrses>Position

axillary67
67. 004-001

<Thyrses>Shape

paniculate68
68. 004-003

Calyx

Calyx , , ,69
69. 006

Capsules

Capsule sessile or short-stipitate, , , , ,70
70. 007

Common Name

English (French Guiana): gangouti English (Suriname): sirada djamaro

Description

Tree to 18 m tall. Stems ferruginous-puberulent, glabrescent. Leaves paripinnate; petiole plus rachis 5.5-20 cm long, slightly marginate, puberulent; petiolules 3-5 mm long, widened at base, usually drying blackish; leaflets 4-8, alternate, chartaceous, glabrous or abaxially puberulent, elliptic, oblanceolate, 3-14 × 2.2-6 cm, the base slightly unequal, acute or obtuse, the apex obtusely acuminate, acuminate or obtuse and usually emarginate, the margins entire, crenulate, and slightly revolute; abaxial surface with prominent midvein, and one or two domatia in the axil of the lowest secondary veins, tertiary veins reticulate. Thyrses axillary, to 20 cm long, paniculate; axes puberulent to appressedly pubescent, slightly striate. Flowers in compound, sessile or shortly pedunculate dichasia; pedicels 0-1 mm long, pubescent. Calyx cup-shaped, albo-pubescent or sparsely so, ca. 0.8 mm long, the lobes triangular-rounded, 3-4 mm long; petals white, cuneate, ca. 1.5 mm long, retuse or truncate at apex; appendages 2, lanose, as long as the petal, marginal; disc glabrous, annular; stamens 8, 2-2.5 mm long, the filaments pubescent on lower half; pistillode lanose; ovary sericeous-tomentose. Capsule sessile or short-stipitate, globose or globose-bilobed, ca. 2 cm in diam., glabrous, verrucose when mature, pericarp woody, endocarp densely wooly. Seeds ca. 1 cm long, ellipsoid, almost completely covered by a white arillode, except for the dorsal portion of apex which is black and shiny.

Distribution

Guianas present, Southern America: Brazil North (Pará present)
Known from Brazil (Pará) and the Guianas (GU: 2; SU: 4; FG: 8).

Flowers

Flowers in compound, sessile or shortly pedunculate dichasia;71
71. 005

Habit

Tree .72
72. 001

Individuals Association

Bassin de l’Approuague, Approuague R., Oldeman 2369 Bassin de l’Approuague, Arataye R., Acevedo-Rdgz. et al. 12342 Guyana, Upper Takutu-Upper Essequibo, Kanuku Mts., Tsikoma Cr., Jansen-Jacobs 968 Guyana, Upper Takutu-Upper Essequibo, Acarai Mts., Henkel et al. 4851 Suriname, Sipaliwini, Wilhelmina Gebergte, lower slopes of Frederick Top, Irwin et al. 54936 Suriname, Brokopondo, 8 km ESE of Brownsweg, high forest, van Donselaar 1818

Leaves

Leaves paripinnate;73
73. 003

Seeds

Seeds , , .74
74. 008

Stems

Stems .75
75. 002

Thyrses

Thyrses , , ;76
76. 004