Chorisepalum

<<<Flowers>Calyx>Apex>Shape

acute to acuminate1

1. 004-003-004-001

<<<Flowers>Calyx>Lobes>Shape

triangular, ovate, to oblong-elliptic, usually not winged or keeled (winged in C. sipapoanum)2

2. 004-003-003-001

<<<Flowers>Corolla>Fusion>Relative distance

2/3-4/5 of total length3

3. 004-005-001-001

<<<Flowers>Stamens>Anthers>Shape

linear4

4. 004-007-002-001

<<<Fruits>Seeds>Testa pattern>Shape

papillose to rounded5

5. 005-002-002-001

<<<Fruits>Seeds>Testa pattern>Texture

smooth6

6. 005-002-002-002

<<Flowers>Calyx>Apex

apex ;7

7. 004-003-004

<<Flowers>Calyx>Lobes

lobes ,8

8. 004-003-003

<<Flowers>Calyx>Merosity

4-merous9

9. 004-001-001

<<Flowers>Calyx>Shape

campanulate10

10. 004-003-002

<<Flowers>Calyx>Texture

coriaceous11

11. 004-003-001

<<Flowers>Corolla>Fusion

fused for12

12. 004-005-001

<<Flowers>Corolla>Length

25-70 mm long13

13. 004-005-003

<<Flowers>Corolla>Merosity

6-merous14

14. 004-002-001

<<Flowers>Corolla>Shape

thin, salver-shaped, funnel-shaped or tubular15

15. 004-005-002

<<Flowers>Pistil>Stigma

stigma bilamellate.16

16. 004-009-001

<<Flowers>Stamens>Anthers

anthers , with sterile appendage (barely there in C. rotundifolium);17

17. 004-007-002

<<Flowers>Stamens>Base

base of filaments without specialized structures,18

18. 004-007-001

<<Fruits>Dehiscence>Valve number

419

19. 005-001-001

<<Fruits>Seeds>Shape

flattened, lenticular, rimmed20

20. 005-002-001

<<Fruits>Seeds>Testa pattern

testa pattern and (C. psychotrioides), alveolate.21

21. 005-002-002

<<Leaves>Vein number>Vein number

7-21-veined22

22. 002-002-001

<Flowers>Androecium

androecium actinomorphic;23

23. 004-006

<Flowers>Calyx

calyx divided to base, , ,24 calyx25

24. 004-003, 25. 004-001

<Flowers>Corolla

corolla , , ;26 corolla27

26. 004-005, 27. 004-002

<Flowers>Corolla bud apex

corolla bud apex tapering;28

28. 004-004

<Flowers>Pistil

pistil with disk,29

29. 004-009

<Flowers>Pollen

pollen in monads;30

30. 004-008

<Flowers>Stamens

stamens inserted in tube near base of corolla, of equal length,31

31. 004-007

<Fruits>Dehiscence

fruit walls becoming twisted and broken into valves at dehiscence32

32. 005-001

<Fruits>Seeds

seeds ,33

33. 005-002

<Habit>Growth form

sometimes epiphytic or scandent34

34. 001-001

<Inflorescences>Bracts and bracteoles

bracts and bracteoles scale-like.35

35. 003-002

<Inflorescences>Position

terminal, less often axillary36

36. 003-001

<Leaves>Length

1.8-13.2 cm long37

37. 002-001

<Leaves>Vein number

.38

38. 002-002

Description

Small trees or shrubs, sometimes epiphytic or scandent. Leaves petiolate, 1.8-13.2 cm long; 7-21-veined. Inflorescences terminal, less often axillary, cymose, or flowers solitary, dichasial (if cymose); bracts and bracteoles scale-like. Flowers pedicellate, with 4-merous calyx and 6-merous corolla, actinomorphic; calyx divided to base, coriaceous, campanulate, lobes triangular, ovate, to oblong-elliptic, usually not winged or keeled (winged in C. sipapoanum), apex acute to acuminate; corolla bud apex tapering; corolla fused for 2/3-4/5 of total length, thin, salver-shaped, funnel-shaped or tubular, 25-70 mm long; androecium actinomorphic; stamens inserted in tube near base of corolla, of equal length, base of filaments without specialized structures, anthers linear, with sterile appendage (barely there in C. rotundifolium); pollen in monads; pistil with disk, stigma bilamellate. Fruit a capsule, with deciduous (initially persistent) calyx and deciduous corolla, fruit walls becoming twisted and broken into 4 valves at dehiscence, with prominently visible and loose vascular veins in center and on inner fruit wall surface; seeds flattened, lenticular, rimmed, testa pattern papillose to rounded and smooth (C. psychotrioides), alveolate.

Distribution

Guayana Highlands present, Guianas present, Guyana present, Neotropics present, Southern America: Venezuela (Venezuela present), Suriname present

5 species in the Neotropics, restricted to the Guayana Highlands of Venezuela and Guyana, 850-2400 m alt., with one disjunct collection from the Tafelberg in Suriname, 400 m alt.; 4 species in the Guianas.

Flowers

Flowers pedicellate, with and , actinomorphic;39

39. 004

Fruits

Fruit a capsule, with deciduous (initially persistent) calyx and deciduous corolla, , with prominently visible and loose vascular veins in center and on inner fruit wall surface;40

40. 005

Habit

Small trees or shrubs, .41

41. 001

Inflorescences

Inflorescences , cymose, or flowers solitary, dichasial (if cymose);42

42. 003

Leaves

Leaves petiolate, ;43

43. 002

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