Aptandra

<<<<Drupes>Endocarp>Endosperm>Cotyledons>Shape

orbicular1

1. 005-004-002-003-001

<<<Drupes>Endocarp>Endosperm>Cotyledons

cotyledon2

2. 005-004-002-003

<<<Drupes>Endocarp>Endosperm>Embryo

with a small embryo at its apex3

3. 005-004-002-002

<<<Drupes>Endocarp>Endosperm>Texture

fleshy4

4. 005-004-002-001

<<<Flowers>Calyx>Shape>Teeth number

4-dentate5

5. 004-001-001-001

<<<Flowers>Stamens>Anthers>Shape

oblong, the thickish connectives concrescent to an annulus6

6. 004-004-003-001

<<<Flowers>Stamens>Filaments>Shape

connate to a cylindrical tube7

7. 004-004-002-001

<<<Flowers>Style>Stigma>Shape

obtuse8

8. 004-006-003-001

<<Drupes>Endocarp>Endosperm

endosperm , containing amylum and fatty substances, , , foliaceous.9

9. 005-004-002

<<Drupes>Endocarp>Texture

woody10

10. 005-004-001

<<Drupes>Pericarp>Texture

coriaceous11

11. 005-003-001

<<Flowers>Calyx>Shape

patelliform, deeply , small at anthesis but very much enlarged in fruiting stage12

12. 004-001-001

<<Flowers>Disk-glands>Arrangement

alternating with the petals13

13. 004-003-002

<<Flowers>Disk-glands>Disk-gland number

414

14. 004-003-001

<<Flowers>Ovary>Locule number

2-locular below15

15. 004-005-002

<<Flowers>Ovary>Ovule number

216

16. 004-005-003

<<Flowers>Ovary>Sulcus number

2-sulcate17

17. 004-005-001

<<Flowers>Petals>Petal number

418

18. 004-002-001

<<Flowers>Petals>Shape

linear-ligulate19

19. 004-002-002

<<Flowers>Stamens>Anthers

anthers ;20

20. 004-004-003

<<Flowers>Stamens>Filaments

filaments ,21

21. 004-004-002

<<Flowers>Stamens>Stamen number

422

22. 004-004-001

<<Flowers>Style>Relative dimensions

as long as the staminal tube23

23. 004-006-002

<<Flowers>Style>Shape

slender, clavate24

24. 004-006-001

<<Flowers>Style>Stigma

stigma .25

25. 004-006-003

<Drupes>Drupe number per infructescence

single26

26. 005-001

<Drupes>Endocarp

endocarp ,27

27. 005-004

<Drupes>Pericarp

pericarp ;28

28. 005-003

<Drupes>Shape

included in its lower half by the much enlarged calyx29

29. 005-002

<Flowers>Calyx

calyx ;30

30. 004-001

<Flowers>Disk-glands

disc-glands , petaloid, ;31

31. 004-003

<Flowers>Ovary

ovary substipitate, ,, with ovules;32

32. 004-005

<Flowers>Petals

petals , , free;33

33. 004-002

<Flowers>Stamens

stamens ,34

34. 004-004

<Flowers>Style

style , ,35

35. 004-006

<Inflorescences>Position

axillary36

36. 003-001

<Inflorescences>Shape

slender37

37. 003-002

Description

Glabrous shrubs or trees. Leaves micropunctate against strong light. Inflorescences axillary pedunculate slender panicles. Flowers small; calyx patelliform, deeply 4-dentate, small at anthesis but very much enlarged in fruiting stage; petals 4, linear-ligulate, free; disc-glands 4, petaloid, alternating with the petals; stamens 4, filaments connate to a cylindrical tube, anthers oblong, the thickish connectives concrescent to an annulus; ovary substipitate, 2-sulcate,2-locular below, with 2 ovules; style slender, clavate, as long as the staminal tube, stigma obtuse. A single drupe per infructescence, included in its lower half by the much enlarged calyx, pericarp coriaceous; endocarp woody, endosperm fleshy, containing amylum and fatty substances, with a small embryo at its apex, cotyledon orbicular, foliaceous.

Distribution

Amazonian South America present, Guianas present, tropical West Africa present

3 species, 1 in tropical West Africa and 2 in Amazonian South America, 1 of these in the Guianas.

Drupes

A drupe per infructescence, ,38

38. 005

Flowers

Flowers small;39

39. 004

Habit

Glabrous shrubs or trees.40

40. 001

Inflorescences

Inflorescences pedunculate panicles.41

41. 003

Leaves

Leaves micropunctate against strong light.42

42. 002

Wood

Vessels diffuse, solitary (25-76%) and in radial multiples of 2-4, round, oval or angular, 6-37 per sq. mm, diameter 92-124 μm. Vessel-member length: 417-766 μm. Perforations simple. Intervascular pits alternate, round to polygonal, 4-7 μm. Vessel-ray and vessel-parenchyma pits of two types: half-bordered diffuse to alternate (similar in shape and size to intervascular pits) and large and simple. Thin-walled tyloses infrequently present. Vascular tracheids associated with vessel multiples, sometimes integrating with narrow vessel elements, scarce to abundant.
Rays of Kribs' heterogeneous type II to III, predominantly uni- or bi-seriate, 8-9 per mm, up to 824 μm high. Perforated ray cells infrequently present.
Parenchyma scanty to abundant, apotracheal and paratracheal, diffuse or in small aggregates, in strands of 3-5 cells.
Ground tissue composed of very thick-walled fibre-tracheids, lumen 16-23 μm. Pits bordered in both radial and tangential walls, diameter of borders 3-6 μm. Length: 1171-2214 μm.
Crystals solitary rhomboidal, in chambered ray and axial parenchyma cells, absent in some specimens.

Wood observation species

A. liriosmoides, A. tubicina

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