Bougainvillea

Primary tabs

Bougainvillea

<<<Habit>Branches>Spines>Position

supra-axillary1
1. 001-001-002-001

<<<Inflorescences>Involucres>Bracts>Bract number

32
2. 003-002-001-001

<<<Perianth>Ovary>Style>Shape

filiform or subclavate3
3. 004-006-002-001

<<Anthocarps>Seeds>Cotyledons

cotyledons incumbent, enclosing mealy endosperm,4
4. 005-004-002

<<Anthocarps>Seeds>Embryo

embryo uncinate,5
5. 005-004-001

<<Anthocarps>Seeds>Radicle

radicle descending.6
6. 005-004-003

<<Habit>Branches>Growth form

clambering7
7. 001-001-001

<<Habit>Branches>Hairs

glabrous or pubescent8
8. 001-001-003

<<Habit>Branches>Spines

sometimes armed with simple or apically forked, spines9
9. 001-001-002

<<Inflorescences>Involucres>Bracts

persistent, leafy, coloured bracts10
10. 003-002-001

<<Leaves>Blade>Margin type

entire11
11. 002-002-001

<<Perianth>Limbs>Lobe number

5(rarely 4)-lobed12
12. 004-003-001

<<Perianth>Lobes>Shape

induplicate-valvate13
13. 004-004-001

<<Perianth>Ovary>Shape

fusiform, slightly laterally compressed14
14. 004-006-001

<<Perianth>Ovary>Style

style subterminal, short, , straight or slightly curved, included, partially or completely papillose.15
15. 004-006-002

<<Perianth>Stamens>Filaments

filaments somewhat unequal, capillary, connate at base in a short cup;16
16. 004-005-002

<<Perianth>Stamens>Stamen number

(4-)5-1017
17. 004-005-001

<<Perianth>Tube>Angle number

5-angled18
18. 004-002-001

<Anthocarps>Costa number

5-costate19
19. 005-003

<Anthocarps>Seeds

seed with thin testa adherent to pericarp,20
20. 005-004

<Anthocarps>Shape

fusiform21
21. 005-001

<Anthocarps>Texture

coriaceous22
22. 005-002

<Habit>Branches

often with long, branches, , .23
23. 001-001

<Inflorescences>Involucres

an involucre of , each (in the Guianas) bearing a bisexual flower with its pedicel adnate to the midvein24
24. 003-002

<Inflorescences>Position

axillary or terminal25
25. 003-001

<Leaves>Blade

blade broad, .26
26. 002-002

<Leaves>Petiole

petiolate;27
27. 002-001

<Perianth>Limbs

limb ,28
28. 004-003

<Perianth>Lobes

lobes ;29
29. 004-004

<Perianth>Ovary

ovary stipitate, ,30
30. 004-006

<Perianth>Shape

tubular31
31. 004-001

<Perianth>Stamens

stamens , included,32
32. 004-005

<Perianth>Tube

tube subterete or ,33
33. 004-002

Anthocarps

Anthocarps , , ;34
34. 005

Description

Shrubs or trees; often with long, clambering branches, sometimes armed with simple or apically forked, supra-axillary spines, glabrous or pubescent. Leaves alternate; petiolate; blade broad, entire. Inflorescences axillary or terminal cymes with pseudanthia consisting of an involucre of 3 persistent, leafy, coloured bracts, each (in the Guianas) bearing a bisexual flower with its pedicel adnate to the midvein. Perianth tubular, tube subterete or 5-angled, limb 5(rarely 4)-lobed, lobes induplicate-valvate; stamens (4-)5-10, included, filaments somewhat unequal, capillary, connate at base in a short cup; ovary stipitate, fusiform, slightly laterally compressed, style subterminal, short, filiform or subclavate, straight or slightly curved, included, partially or completely papillose. Anthocarps fusiform, coriaceous, 5-costate; seed with thin testa adherent to pericarp, embryo uncinate, cotyledons incumbent, enclosing mealy endosperm, radicle descending.

Distribution

Guianas present, Southern America, tropical South America present
Approximately 18 species, occurring in Central America and tropical South America; 2 species cultivated in the Guianas.

Habit

Shrubs or trees;35
35. 001

Inflorescences

Inflorescences cymes with pseudanthia consisting of .36
36. 003

Leaves

Leaves alternate;37
37. 002

Notes

Commerson (1727-1773) discovered and collected a specimen of Bougainvillea in Brazil, while accompanying the explorer Louis Antoine de Bougainville (1729-1811) on a portion of his circumnavigation of the world in 1766-1769. Commerson suggested that the new genus be named after Bougainville, and when specimens from the trip had been sent to A.-L. de Jussieu in Paris, the latter botanist described the genus in 1789.

Perianth

Perianth ,38
38. 004