Serjania

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Serjania

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<<Flowers>Calyx>Merosity

4-5-merous1
1. 006-001-001

<<Flowers>Calyx>Sepals

the sepals distinct, or the two anterior ones connate to different degrees into a larger sepal;2
2. 006-001-002

<<Flowers>Disk>Lobe number

2- to 4-lobed3
3. 006-003-001

<<Flowers>Ovary>Locule number

3-locular4
4. 006-005-001

<<Flowers>Ovary>Ovule number per locule

single5
5. 006-005-002

<<Flowers>Petals>Appendages

distinct with a hood-shaped appendage, larger in postrior petals6
6. 006-002-002

<<Flowers>Petals>Petal number

47
7. 006-002-001

<<Flowers>Stamens>Anthers

the anthers dorsifixed;8
8. 006-004-003

<<Flowers>Stamens>Filaments

the filaments of unequal length,9
9. 006-004-002

<<Flowers>Stamens>Stamen number

810
10. 006-004-001

<<Fruits>Mericarps>Mericarp number

three11
11. 007-001-001

<<Thyrses>Cincinni>Shape

lateral12
12. 005-003-001

<Flowers>Calyx

calyx ,13
13. 006-001

<Flowers>Disk

disc unilateral, ;14
14. 006-003

<Flowers>Ovary

ovary , the locules with a ovule.15
15. 006-005

<Flowers>Petals

petals , ;16
16. 006-002

<Flowers>Stamens

stamens ,17
17. 006-004

<Fruits>Mericarps

splitting into samaroid mericarps18
18. 007-001

<Leaves>Foliole number

trifoliolate, pinnately 5-foliolate19
19. 004-001

<Seeds>Shape

lenticular to globose20
20. 008-001

<Thyrses>Cincinni

with flowers on cincinni21
21. 005-003

<Thyrses>Position

axillary or distal22
22. 005-001

<Thyrses>Shape

racemose or paniculate23
23. 005-002

Cross section

Cross section with a single or multiple vascular cylinders, often producing milky sap.24
24. 002

Description

Lianas or vines of forest canopy, open disturbed areas, or savanna vegetations. Cross section with a single or multiple vascular cylinders, often producing milky sap. Stipules minute or small, early deciduous or persistent. Leaves alternate, trifoliolate, pinnately 5-foliolate, biternate, or triternate, or seldom bipinnate. Thyrses axillary or distal, racemose or paniculate, with flowers on lateral cincinni. Flowers zygomorphic; calyx 4-5-merous, the sepals distinct, or the two anterior ones connate to different degrees into a larger sepal; petals 4, distinct with a hood-shaped appendage, larger in postrior petals; disc unilateral, 2- to 4-lobed; stamens 8, the filaments of unequal length, the anthers dorsifixed; ovary 3-locular, the locules with a single ovule. Fruit a schizocarp, splitting into three samaroid mericarps, with a proximal wing. Seeds lenticular to globose, not arillate.

Distribution

Guianas present, Neotropical present, Northern America, Southern America, northern Argentina present
A Neotropical genus with about 230 species mostly distributed below 1500 m in savannas, dry forest, or open, disturbed habitats from Mexico to northern Argentina, including the West Indies. Eight species in the Guianas.

Flowers

Flowers zygomorphic;25
25. 006

Fruits

Fruit a schizocarp, , with a proximal wing.26
26. 007

Habit

Lianas or vines of forest canopy, open disturbed areas, or savanna vegetations.27
27. 001

Leaves

Leaves alternate, , biternate, or triternate, or seldom bipinnate.28
28. 004

Seeds

Seeds , not arillate.29
29. 008

Stipules

Stipules minute or small, early deciduous or persistent.30
30. 003

Thyrses

Thyrses , , .31
31. 005