Tylopsacas

Primary tabs

Tylopsacas

<<<Calyx>Disk>Dorsal lobes>Lobe number

2 dorsal lobes much larger than the other 31
1. 005-004-002-001

<<Calyx>Corolla>Colour

white2
2. 005-001-001

<<Calyx>Corolla>Shape

tubular3
3. 005-001-002

<<Calyx>Disk>Dorsal lobes

with4
4. 005-004-002

<<Calyx>Disk>Gland number

55
5. 005-004-001

<<Calyx>Ovary>Stigma

stigma capitate.6
6. 005-005-001

<<Calyx>Stamens>Anthers

anthers coherent in pairs, dehiscing by longitudinal slits,7
7. 005-002-002

<<Calyx>Stamens>Filaments

filaments not connate,8
8. 005-002-001

<<Calyx>Stamens>Thecae

thecae divergent at base;9
9. 005-002-003

<Calyx>Corolla

corolla , ;10
10. 005-001

<Calyx>Disk

disc a ring of subequal glands or ;11
11. 005-004

<Calyx>Ovary

ovary superior,12
12. 005-005

<Calyx>Stamens

stamens included,13
13. 005-002

<Calyx>Staminodes

staminode small;14
14. 005-003

<Flowers>Bracteoles

bracteoles absent;15
15. 004-003

<Flowers>Flower number per inflorescence

few to numerous16
16. 004-002

<Flowers>Pedicels

pedicellate.17
17. 004-004

<Flowers>Position

axillary18
18. 004-001

<Fruits>Colour

brown19
19. 006-001

<Fruits>Valve number

2-4-valved20
20. 006-002

<Fruits>Valves

valves opening slightly.21
21. 006-003

<Habit>Growth form

erect22
22. 001-001

Calyx

Calyx lobes connate only at base;23
23. 005

Cytology

Chromosome number unknown.

Description

Terrestrial acaulescent erect herbs, without modified stems. Stems unbranched. Leaves radicular, rosulate, equal to strongly unequal in a pair, venation pinnate, foliar nectaries absent. Flowers axillary, few to numerous in pedunculate panicles; bracteoles absent; pedicellate. Calyx lobes connate only at base; corolla white, tubular; stamens included, filaments not connate, anthers coherent in pairs, dehiscing by longitudinal slits, thecae divergent at base; staminode small; disc a ring of 5 subequal glands or with 2 dorsal lobes much larger than the other 3; ovary superior, stigma capitate. Fruit a dry, brown, loculicidally and sometimes septicidally dehiscent, 2-4-valved capsule, valves opening slightly.

Distribution

Bolivar present, Guayana Highlands present, Southern America: Brazil North (Amazonas present); Venezuela (Venezuela present), western Guyana present
A monospecific genus, known only from the Guayana Highlands in BolĂ­var and Amazonas in Venezuela, neighbouring Brazil, western Guyana, and neighbouring Brazil.

Flowers

Flowers , in pedunculate panicles;24
24. 004

Fruits

Fruit a dry, , loculicidally and sometimes septicidally dehiscent, capsule,25
25. 006

Habit

Terrestrial acaulescent herbs, without modified stems.26
26. 001

Leaves

Leaves radicular, rosulate, equal to strongly unequal in a pair, venation pinnate, foliar nectaries absent.27
27. 003

Stems

Stems unbranched.28
28. 002