Trymatococcus

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Trymatococcus

Content

<<Fruits>Receptacle>Colour

yellowish1
1. 006-001-002

<<Fruits>Receptacle>Texture

fleshy2
2. 006-001-001

<<Fruits>Seeds>Cotyledons

cotyledons thick, equal or unequal.3
3. 006-002-001

<<Inflorescences>Receptacle>Shape

cylindrical to turbinate4
4. 003-001-001

<<Pistillate flowers>Stigma>Shape

filiform5
5. 005-003-002

<<Pistillate flowers>Stigma>Stigma number

26
6. 005-003-001

<<Staminate flowers>Perianth>Lobe number

3-lobed7
7. 004-002-001

<<Staminate flowers>Perianth>Part number

3-parted8
8. 004-002-002

<<Staminate flowers>Stamens>Stamen number

39
9. 004-003-001

<Fruits>Receptacle

the enlarged, , receptacle10
10. 006-001

<Fruits>Seeds

seed large, without endosperm,11
11. 006-002

<Inflorescences>Receptacle

receptacle12
12. 003-001

<Leaves>Blade

blade entire, pinnately veined.13
13. 002-002

<Leaves>Stipules

stipules semi-amplexicaul, free;14
14. 002-001

<Pistillate flowers>Flower number

115
15. 005-001

<Pistillate flowers>Ovary

ovary adnate to the perianth;16
16. 005-002

<Pistillate flowers>Stigma

stigmas , .17
17. 005-003

<Staminate flowers>Flower number

a few to many18
18. 004-001

<Staminate flowers>Perianth

perianth to ;19
19. 004-002

<Staminate flowers>Pistillode

pistillode present.20
20. 004-004

<Staminate flowers>Stamens

stamens ;21
21. 004-003

Description

Trees, monoecious. Leaves alternate and distichous; stipules semi-amplexicaul, free; blade entire, pinnately veined. Inflorescences in the leaf axils, bisexual, pedunculate, receptacle cylindrical to turbinate, bracteate. Staminate flowers a few to many, superficial, on the upper part of the receptacle; perianth 3-lobed to 3-parted; stamens 3; pistillode present. Pistillate flower 1, central, embedded in the receptacle; ovary adnate to the perianth; stigmas 2, filiform. Fruit forming a drupaceous whole with the perianth and the enlarged, fleshy, yellowish receptacle; seed large, without endosperm, cotyledons thick, equal or unequal.

Distribution

Guianas present, Neotropics present
Neotropics, 3 species; in the Guianas 2 species.

Fruits

Fruit forming a drupaceous whole with the perianth and ;22
22. 006

Habit

Trees, monoecious.23
23. 001

Inflorescences

Inflorescences in the leaf axils, bisexual, pedunculate, , bracteate.24
24. 003

Leaves

Leaves alternate and distichous;25
25. 002

Pistillate flowers

Pistillate flower , central, embedded in the receptacle;26
26. 005

Staminate flowers

Staminate flowers , superficial, on the upper part of the receptacle;27
27. 004

Wood

Vessels diffuse, solitary (50-70%) and in short radial multiples of 2-4, round to oval, 7-9 per sq. mm, diameter 95-110 μm. Vessel-member length: 370-465 μm. Perforations simple. Intervascular pits alternate, round to oval, 7-11 μm. Pits between vessels and procumbent ray cells comparable with the intervascular pits in size; pits between the vessels and the upright ray cells and the vessel-parenchyma pits irregular, round to elongate, tending towards a scalariform pattern, half-bordered. Thin- walled tyloses often present.
Rays uniseriate and 2-4-seriate, 8-10 per mm, up to 300-900 μm high. Heterogeneous, composed of procumbent cells with uniseriate margins of 1-4 rows of square and upright cells. Radial latex tubes present in all samples. Rhombic crystals occasionally present in the marginal cells.
Parenchyma, often unilateral, narrowly aliform with long wings, occasionally confluent-banded, in some samples terminal parenchyma present. Strands of 2-4 cells.
Fibres non-septate, lumen 5-13 μm, walls 2-3 μm. Pits simple, small, confined to the radial walls. Few gelatinous fibres. Length: 1000-1200 μm. F/V ratio: 2.6-2.8.

Wood observation species

T. oligandrus, T. paraensis