Buchenavia parvifolia

<<<<Fruits>Apex>Shape>Apiculus>Length

up to 2 mm1

1. 005-004-001-001-001

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

ca. half total length2

2. 004-002-002-001

<<<Fruits>Apex>Shape>Apiculus

apiculus rarely3

3. 005-004-001-001

<<<Inflorescences>Peduncle>Hairs>Colour

rufous4

4. 003-003-002-001

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

(3-)4-6(-8) pairs5

5. 002-007-002-001

<<Flowers>Lower hypanthium>Hairs

glabrous6

6. 004-002-003

<<Flowers>Lower hypanthium>Length

1.5-2.5 mm long7

7. 004-002-001

<<Flowers>Lower hypanthium>Neck

rather gradually narrowed to neck8

8. 004-002-002

<<Flowers>Upper hypanthium>Dimensions

1-1.6 x 2.3-3 mm9

9. 004-003-001

<<Flowers>Upper hypanthium>Hairs

glabrous to sparsely pilose10

10. 004-003-002

<<Fruits>Apex>Shape

rounded or obtuse and often shortly apiculate ()11

11. 005-004-001

<<Fruits>Base>Shape

rounded to acute12

12. 005-005-001

<<Habit>Plank buttresses>Width

30 cm wide13

13. 001-002-001

<<Inflorescences>Peduncle>Hairs

pubescent in flower, becoming subglabrous and much thicker in fruit14

14. 003-003-002

<<Inflorescences>Peduncle>Length

1-2 cm15

15. 003-003-001

<<Inflorescences>Rachises>Length

0.2-0.4 cm16

16. 003-004-001

<<Leaves>Apex>Shape

rounded or rarely retuse to obtuse17

17. 002-004-001

<<Leaves>Base>Hairs

appressed-pubescent when very young, becoming glabrous except often sparsely pubescent on midvein when mature18

18. 002-005-001

<<Leaves>Petiole>Hairs

pubescent, becoming sparsely so19

19. 002-010-002

<<Leaves>Petiole>Length

0.2-1.2 cm long20

20. 002-010-001

<<Leaves>Veins>Intersecondary veins

intersecondary veins common, often almost as evident as secondaries,21

21. 002-007-003

<<Leaves>Veins>Midveins

midvein moderate to fine, prominent to scarcely so,22

22. 002-007-001

<<Leaves>Veins>Secondary veins

secondary veins , moderately spaced to distant, originating at widely acute angles, curved to slightly so, slightly prominent,23

23. 002-007-002

<<Leaves>Veins>Tertiary veins

tertiary veins randomly reticulate;24

24. 002-007-004

<Flowers>Length

2.5-4.5 mm long25

25. 004-001

<Flowers>Lower hypanthium

lower hypanthium , , ,26

26. 004-002

<Flowers>Upper hypanthium

upper hypanthium , .27

27. 004-003

<Fruits>Apex

apex ,28

28. 005-004

<Fruits>Base

base and sometimes very shortly pseudostipitate.29

29. 005-005

<Fruits>Dimensions

1-2.6 x 0.7-1.6 cm30

30. 005-002

<Fruits>Hairs

glabrous31

31. 005-001

<Fruits>Shape

elliptic to obovate in side view, more or less terete32

32. 005-003

<Habit>Height

3-31 m33

33. 001-001

<Habit>Plank buttresses

plank buttresses34

34. 001-002

<Inflorescences>Flower number per inflorescence

ca. 3-435

35. 003-002

<Inflorescences>Length

1-2.4 cm long36

36. 003-001

<Inflorescences>Peduncle

peduncle , ;37

37. 003-003

<Inflorescences>Rachises

rhachis .38

38. 003-004

<Leaves>Apex

apex ,39

39. 002-004

<Leaves>Areolation

areolation incomplete;40

40. 002-009

<Leaves>Base

base narrowly decurrent-cuneate, ;41

41. 002-005

<Leaves>Dimensions

(0.6-)1-4(-5.5) x (0.3-)0.5-2 cm42

42. 002-003

<Leaves>Domatia

domatia present;43

43. 002-006

<Leaves>Higher order veins

higher order veins not distinct;44

44. 002-008

<Leaves>Petiole

petiole , , eglandular.45

45. 002-010

<Leaves>Shape

usually obovate or narrowly so or oblong-obovate, on juvenile shoots rhombic or obtrullate46

46. 002-002

<Leaves>Texture

chartaceous47

47. 002-001

<Leaves>Veins

venation brochidodromous,48

48. 002-007

Common Name

English (Guyana): mefichi

Description

Briefly deciduous or ? sometimes evergreen tree, 3-31 m, with plank buttresses 30 cm wide. Leaves chartaceous, usually obovate or narrowly so or oblong-obovate, on juvenile shoots rhombic or obtrullate, (0.6-)1-4(-5.5) x (0.3-)0.5-2 cm, apex rounded or rarely retuse to obtuse, base narrowly decurrent-cuneate, appressed-pubescent when very young, becoming glabrous except often sparsely pubescent on midvein when mature; domatia present; venation brochidodromous, midvein moderate to fine, prominent to scarcely so, secondary veins (3-)4-6(-8) pairs, moderately spaced to distant, originating at widely acute angles, curved to slightly so, slightly prominent, intersecondary veins common, often almost as evident as secondaries, tertiary veins randomly reticulate; higher order veins not distinct; areolation incomplete; petiole 0.2-1.2 cm long, pubescent, becoming sparsely so, eglandular. Inflorescence 1-2.4 cm long, more or less capitate, with only ca. 3-4 closely grouped flowers; peduncle 1-2 cm, rufous pubescent in flower, becoming subglabrous and much thicker in fruit; rhachis 0.2-0.4 cm. Flowers 2.5-4.5 mm long; lower hypanthium 1.5-2.5 mm long, rather gradually narrowed to neck ca. half total length, glabrous,upper hypanthium 1-1.6 x 2.3-3 mm, glabrous to sparsely pilose. Fruit glabrous, 1-2.6 x 0.7-1.6 cm, elliptic to obovate in side view, more or less terete, apex rounded or obtuse and often shortly apiculate (apiculus rarely up to 2 mm), base rounded to acute and sometimes very shortly pseudostipitate.

Distribution

Amazon river-basin present, Guianas present present, Southern America: Brazil North (Amapá present, Pará present); Peru (Peru present); Venezuela (Venezuela present), eastern Ecuador present

Amazon river-basin from eastern Ecuador and Peru to Pará and Amapá in Brazil, and scattered N to Venezuela and the Guianas; 6 specimens from the Guianas (GU: 4; FG: 2).

Flowers

Flowers ;49

49. 004

Fruits

Fruit , , ,50

50. 005

Habit

Briefly deciduous or ? sometimes evergreen tree, , with .51

51. 001

Individuals Association

Guyana, Potaro-Siparuni Region, Kaieteur Falls National Park, along trail to Tukeit, Hahn et al. 4718 Guyana, Upper Takutu-Upper Essequibo Region, Upper Essequibo R., 1-4 km upstream from mouth of Kuyuwini R., Henkel et al. 3353 Saül, Mts. La Fumée, Mori & Boom 15300

Inflorescences

Inflorescence , more or less capitate, with only closely grouped flowers;52

52. 003

Leaves

Leaves , , ,53

53. 002

Phenology

Fruiting ; flowering and no flowers seen from the Guianas.

Uses

Timber used for building houses; firewood.

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