Pisonia

Primary tabs

Pisonia

Content

<<<Anthocarps>Perianth>Shape>Angle or rib number

5-angled or -ribbed1
1. 007-003-001-001

<<<Male perianth>Stamens>Filaments>Shape

filiform2
2. 005-003-002-001

<<Anthocarps>Glands>Row number

1-2(-more)3
3. 007-004-001

<<Anthocarps>Perianth>Shape

erete and costate or4
4. 007-003-001

<<Anthocarps>Seeds>Cotyledons

cotyledons involute,5
5. 007-005-003

<<Anthocarps>Seeds>Embryo

embryo straight,6
6. 007-005-002

<<Anthocarps>Seeds>Endosperm

endosperm scanty,7
7. 007-005-004

<<Anthocarps>Seeds>Perisperm

perisperm abundant, mealy,8
8. 007-005-005

<<Anthocarps>Seeds>Radicle

radicle short, inferior.9
9. 007-005-006

<<Anthocarps>Seeds>Testa

testa hyaline,10
10. 007-005-001

<<Female perianth>Limbs>Teeth number

5-toothed11
11. 006-002-001

<<Female perianth>Style>Ovules

ovule basal, anacampylotropous.12
12. 006-004-003

<<Female perianth>Style>Shape

filiform13
13. 006-004-001

<<Female perianth>Style>Stigma

stigma fimbriate,14
14. 006-004-002

<<Flowers>Shape>Bracteole number

2-3-bracteolate15
15. 004-001-001

<<Habit>Juvenile branches>Hairs

pubescent, soon becoming glabrous16
16. 001-001-001

<<Habit>Spines>Position

axillary and/or produced at tip of a patent branch17
17. 001-002-001

<<Male perianth>Stamens>Filaments

filaments , connate at base, basifixed or dorsifixed,18
18. 005-003-002

<<Male perianth>Stamens>Pollen

pollen tricolpate;19
19. 005-003-003

<<Male perianth>Stamens>Stamen number

6-8(-10)20
20. 005-003-001

<<Male perianth>Teeth>Shape

induplicate-valvate21
21. 005-002-002

<<Male perianth>Teeth>Teeth number

5-toothed22
22. 005-002-001

<Anthocarps>Glands

with viscid stipitate glands in rows along costae, angles or ribs, glands with secretive stalk, head not secretive23
23. 007-004

<Anthocarps>Perianth

with accrescent perianth, t24
24. 007-003

<Anthocarps>Seeds

seed adherent to pericarp, with deep longitudinal furrow,25
25. 007-005

<Anthocarps>Shape

ellipsoid, oblongoid, obovoid or clavate26
26. 007-002

<Anthocarps>Texture

fleshy27
27. 007-001

<Female perianth>Limbs

with limb28
28. 006-002

<Female perianth>Shape

tubular to narrowly campanulate or urceolate29
29. 006-001

<Female perianth>Staminodes

staminodes present, almost as long as ovary or reduced to a disc;30
30. 006-003

<Female perianth>Style

style , slightly longer than perianth,31
31. 006-004

<Flowers>Shape

sessile or pedicellate, , bracteoles often spirally arranged around the pedicel.32
32. 004-001

<Habit>Juvenile branches

young branches ;33
33. 001-001

<Habit>Spines

spines, when present, .34
34. 001-002

<Inflorescences>Flower number

few- to many-flowered35
35. 003-002

<Inflorescences>Position

axillary or terminal36
36. 003-001

<Inflorescences>Shape

paniculate or corymbiform cymes, sometimes umbelliform or thyrsiform37
37. 003-003

<Leaves>Hairs

glabrous or pubescent38
38. 002-001

<Male perianth>Ovary

ovary rudimentary.39
39. 005-004

<Male perianth>Shape

turbinate or obconic-campanulate40
40. 005-001

<Male perianth>Stamens

stamens , exserted,41
41. 005-003

<Male perianth>Teeth

with limb, teeth42
42. 005-002

Anthocarps

Anthocarps dry or , , , ;43
43. 007

Description

Trees and shrubs, sometimes scrambling vines, often armed; young branches pubescent, soon becoming glabrous; spines, when present, axillary and/or produced at tip of a patent branch. Leaves opposite or subopposite, petiolate, entire, glabrous or pubescent. Inflorescences axillary or terminal, sessile or pedunculate, few- to many-flowered, paniculate or corymbiform cymes, sometimes umbelliform or thyrsiform, often borne on modified short shoots. Flowers unisexual, dioecious, exinvolucrate; sessile or pedicellate, 2-3-bracteolate, bracteoles often spirally arranged around the pedicel. Male perianth turbinate or obconic-campanulate, with 5-toothed limb, teeth induplicate-valvate; stamens 6-8(-10), exserted, filaments filiform, connate at base, basifixed or dorsifixed, pollen tricolpate; ovary rudimentary. Female perianth tubular to narrowly campanulate or urceolate, with 5-toothed limb; staminodes present, almost as long as ovary or reduced to a disc; style filiform, slightly longer than perianth, stigma fimbriate, ovule basal, anacampylotropous. Anthocarps dry or fleshy, ellipsoid, oblongoid, obovoid or clavate, with accrescent perianth, terete and costate or 5-angled or -ribbed, with viscid stipitate glands in 1-2(-more) rows along costae, angles or ribs, glands with secretive stalk, head not secretive; seed adherent to pericarp, with deep longitudinal furrow, testa hyaline, embryo straight, cotyledons involute, endosperm scanty, perisperm abundant, mealy, radicle short, inferior.

Distribution

America present, Southeast Asia present, all tropical and subtropical regions present
About 40 species in all tropical and subtropical regions, especially America and Southeast Asia.

Female perianth

Female perianth , ;44
44. 006

Flowers

Flowers unisexual, dioecious, exinvolucrate;45
45. 004

Habit

Trees and shrubs, sometimes scrambling vines, often armed;46
46. 001

Inflorescences

Inflorescences , sessile or pedunculate, , , often borne on modified short shoots.47
47. 003

Leaves

Leaves opposite or subopposite, petiolate, entire, .48
48. 002

Male perianth

Male perianth , ;49
49. 005