Bagassa

Primary tabs

Bagassa

<<<Fruiting perianth>Seeds>Cotyledons>Shape

flat and equal1
1. 006-004-001-001

<<<Pistillate inflorescences>Ovary>Stigma>Shape

subulate2
2. 005-003-001-002

<<<Pistillate inflorescences>Ovary>Stigma>Stigma number

23
3. 005-003-001-001

<<Fruiting perianth>Seeds>Cotyledons

cotyledons .4
4. 006-004-001

<<Leaves>Blade>Lobe number

3-lobed5
5. 002-002-001

<<Leaves>Blade>Part number

3-parted6
6. 002-002-002

<<Leaves>Blade>Vein number

3-veined7
7. 002-002-003

<<Leaves>Stipules>Position

lateral8
8. 002-001-001

<<Pistillate inflorescences>Ovary>Stigma

stigmas , .9
9. 005-003-001

<<Pistillate inflorescences>Tepals>Shape

basally connate10
10. 005-002-002

<<Pistillate inflorescences>Tepals>Tepal number

411
11. 005-002-001

<<Staminate inflorescences>Stamens>Stamen number

212
12. 004-002-001

<<Staminate inflorescences>Tepals>Shape

basally connate13
13. 004-001-002

<<Staminate inflorescences>Tepals>Tepal number

414
14. 004-001-001

<Fruiting perianth>Colour

greenish15
15. 006-002

<Fruiting perianth>Fruits

fruit free;16
16. 006-003

<Fruiting perianth>Seeds

seed small, with endosperm,17
17. 006-004

<Fruiting perianth>Texture

fleshy18
18. 006-001

<Leaves>Blade

blade entire or to , .19
19. 002-002

<Leaves>Stipules

stipules , free;20
20. 002-001

<Pistillate inflorescences>Ovary

ovary free,21
21. 005-003

<Pistillate inflorescences>Shape

globose-capitate22
22. 005-001

<Pistillate inflorescences>Tepals

tepals , ;23
23. 005-002

<Staminate inflorescences>Pistillode

pistillode present.24
24. 004-003

<Staminate inflorescences>Stamens

stamens ;25
25. 004-002

<Staminate inflorescences>Tepals

tepals , ;26
26. 004-001

Description

Trees, dioecious. Leaves (usually) opposite; stipules lateral, free; blade entire or 3-lobed to 3-parted, 3-veined. Inflorescences in the leaf axils, pedunculate, with bracts. Staminate inflorescences spicate; tepals 4, basally connate; stamens 2; pistillode present. Pistillate inflorescences globose-capitate; tepals 4, basally connate; ovary free, stigmas 2, subulate. Fruiting perianth enlarged, fleshy, greenish; fruit free; seed small, with endosperm, cotyledons flat and equal.

Distribution

Southern America
In northern South America 1 species.

Fruiting perianth

Fruiting perianth enlarged, , ;27
27. 006

Habit

Trees, dioecious.28
28. 001

Inflorescences

Inflorescences in the leaf axils, pedunculate, with bracts.29
29. 003

Leaves

Leaves (usually) opposite;30
30. 002

Pistillate inflorescences

Pistillate inflorescences ;31
31. 005

Staminate inflorescences

Staminate inflorescences spicate;32
32. 004

Wood

Vessels diffuse, solitary (20-60%) and in short radial multiples and irregular clusters of 2-4, round and oval, 3-4(7) per sq. mm, diameter 145-240 μm. Vessel-member length: 325-445 μm. Perforations simple. Intervascular pits alternate, round, polygonal or slightly oval, 9-13(15) μm. Vessel-ray and vessel-parenchyma pits larger, elongated, half- bordered, borders sometimes reduced. Thin-walled tyloses common.
Rays uniseriate and 2-5-seriate, 3-7 per mm, up to 600-840 μm high. Heterogeneous, composed of procumbent cells, except for the uniseriate margins of 1-2 rows of square and occasionally upright cells. Sheath cells very scarce. Rhombic crystals common in the marginal ray cells. Radial latex tubes present in all samples.
Parenchyma scanty paratracheal to vasicentric-aliform with short wings and some diffuse parenchyma. Strands of 3-4 cells. Rhombic crystals scarce.
Fibres non-septate, lumen 10 μm, walls 3-5 μm. Pits simple, small, restricted to the radial walls. Gelatinous fibres present in variable amounts. Length: 945-970 μm. F/V ratio: 2.7-2.9.
Axial latex tubes occasionally present.

Wood observation species

B. guianensis