Buchenavia congesta

<<<Flowers>Lower hypanthium>Neck>Relative dimensions

ca. half its length1

1. 004-002-003-001

<<<Inflorescences>Peduncle>Hairs>Colour

rufous2

2. 003-002-002-001

<<<Inflorescences>Rachises>Hairs>Colour

rufous3

3. 003-003-002-001

<<<Leaves>Veins>Secondary veins>Secondary vein pair number

6-16 pairs4

4. 002-007-002-001

<<Flowers>Lower hypanthium>Hairs

probably glabrous to densely pubescent (pilose in type of B. longibracteata)5

5. 004-002-002

<<Flowers>Lower hypanthium>Length

2-2.5 mm long6

6. 004-002-001

<<Flowers>Lower hypanthium>Neck

with narrow neck7

7. 004-002-003

<<Flowers>Upper hypanthium>Dimensions

1-1.5 x 2.5-3 mm8

8. 004-003-001

<<Flowers>Upper hypanthium>Hairs

glabrous9

9. 004-003-002

<<Fruits>Apex>Shape

rounded to acute or apiculate10

10. 005-004-001

<<Fruits>Base>Shape

rounded11

11. 005-005-001

<<Inflorescences>Peduncle>Hairs

densely -puberulous12

12. 003-002-002

<<Inflorescences>Peduncle>Length

1.8-3.7 cm13

13. 003-002-001

<<Inflorescences>Rachises>Hairs

densely -puberulous14

14. 003-003-002

<<Inflorescences>Rachises>Length

5-11 cm15

15. 003-003-001

<<Leaves>Apex>Shape

shortly and abruptly acuminate or apiculate (often with good 'shoulders')16

16. 002-004-001

<<Leaves>Base>Hairs

glabrous except sometimes puberulous on midvein above, glabrous except puberulous on midvein and secondary veins to puberulous except densely so on major venation below17

17. 002-005-001

<<Leaves>Petiole>Hairs

sparsely to densely puberulous, usually conspicuously biglandular18

18. 002-010-002

<<Leaves>Petiole>Length

(0.6-)1-3 cm long19

19. 002-010-001

<<Leaves>Veins>Intersecondary veins

intersecondary veins absent,20

20. 002-007-003

<<Leaves>Veins>Midveins

midvein moderate, prominent,21

21. 002-007-001

<<Leaves>Veins>Secondary veins

secondary veins , moderately spaced to close, arising at moderately to widely acute angles, curved to slightly curved, prominent,22

22. 002-007-002

<<Leaves>Veins>Tertiary veins

tertiary veins regularly and often closely percurrent;23

23. 002-007-004

<Flowers>Length

3-4 mm long24

24. 004-001

<Flowers>Lower hypanthium

lower hypanthium , , ,25

25. 004-002

<Flowers>Upper hypanthium

upper hypanthium , .26

26. 004-003

<Fruits>Apex

apex ,27

27. 005-004

<Fruits>Base

base and usually shortly pseudostipitate.28

28. 005-005

<Fruits>Dimensions

1.8-2.5 x 0.7-1.5 cm29

29. 005-002

<Fruits>Hairs

glabrous or nearly so even when young30

30. 005-001

<Fruits>Shape

oblong to oblong-elliptic or narrowly so in side view, more or less terete31

31. 005-003

<Habit>Height

5-40 m32

32. 001-001

<Inflorescences>Length

2.5-14 cm long33

33. 003-001

<Inflorescences>Peduncle

peduncle , ;34

34. 003-002

<Inflorescences>Rachises

rhachis , .35

35. 003-003

<Leaves>Apex

apex ,36

36. 002-004

<Leaves>Areolation

areolation imperfect, slightly prominent;37

37. 002-009

<Leaves>Base

base narrowly attenuate-cuneate, ;38

38. 002-005

<Leaves>Dimensions

8-23 x 3-9 cm39

39. 002-003

<Leaves>Domatia

domatia often present;40

40. 002-006

<Leaves>Higher order veins

higher order veins distinct;41

41. 002-008

<Leaves>Petiole

petiole , .42

42. 002-010

<Leaves>Shape

obovate to oblanceolate43

43. 002-002

<Leaves>Texture

chartaceous to subcoriaceous44

44. 002-001

<Leaves>Veins

venation eucamptodromous or eucamptodromous-brochidodromous,45

45. 002-007

Common Name

English (Guyana): wild genip

Description

Tree, 5-40 m, with large buttresses. Leaves chartaceous to subcoriaceous, obovate to oblanceolate, 8-23 x 3-9 cm, apex shortly and abruptly acuminate or apiculate (often with good 'shoulders'), base narrowly attenuate-cuneate, glabrous except sometimes puberulous on midvein above, glabrous except puberulous on midvein and secondary veins to puberulous except densely so on major venation below; domatia often present; venation eucamptodromous or eucamptodromous-brochidodromous, midvein moderate, prominent, secondary veins 6-16 pairs, moderately spaced to close, arising at moderately to widely acute angles, curved to slightly curved, prominent, intersecondary veins absent, tertiary veins regularly and often closely percurrent; higher order veins distinct; areolation imperfect, slightly prominent; petiole (0.6-)1-3 cm long, sparsely to densely puberulous, usually conspicuously biglandular. Inflorescence 2.5-14 cm long, spicate; peduncle 1.8-3.7 cm, densely rufous-puberulous; rhachis 5-11 cm, densely rufous-puberulous. Flowers 3-4 mm long; lower hypanthium 2-2.5 mm long, probably glabrous to densely pubescent (pilose in type of B. longibracteata), with narrow neck ca. half its length,upper hypanthium 1-1.5 x 2.5-3 mm, glabrous. Fruit glabrous or nearly so even when young, 1.8-2.5 x 0.7-1.5 cm, oblong to oblong-elliptic or narrowly so in side view, more or less terete, apex rounded to acute or apiculate, base rounded and usually shortly pseudostipitate.

Distribution

Guianas present, Guyana present, Southern America: Brazil North (Acre present); Colombia (Colombia present); Ecuador (Ecuador present); Venezuela (Venezuela present), Western catchment of Amazon river-basin in Brazil present

Western catchment of Amazon river-basin in Brazil, Venezuela, Colombia and Ecuador; the isolated localities in Ecuador and Acre, Brazil, and in Guyana, are outliers but the specimens are quite typical; a single specimen has been seen from the Guianas (GU: 1).

Flowers

Flowers ;46

46. 004

Fruits

Fruit , , ,47

47. 005

Habit

Tree, , with large buttresses.48

48. 001

Individuals Association

Guyana, NW-Distr., Hurudiah, Moruca R., van Andel et al. 1734

Inflorescences

Inflorescence , spicate;49

49. 003

Leaves

Leaves , , ,50

50. 002

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