Buchenavia pallidovirens

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Buchenavia pallidovirens

Content

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

5-8 pairs1
1. 002-007-002-001

<<Flowers>Lower hypanthium>Hairs

wholly densely pubescent2
2. 005-002-002

<<Flowers>Lower hypanthium>Length

1.5-2 mm3
3. 005-002-001

<<Flowers>Upper hypanthium>Dimensions

1-1.5 x 2.5-4 mm4
4. 005-003-001

<<Flowers>Upper hypanthium>Hairs

pubescent5
5. 005-003-002

<<Fruits>Apex>Shape

subacute to rounded6
6. 006-004-001

<<Fruits>Base>Shape

rounded to truncate7
7. 006-005-001

<<Inflorescences>Peduncle>Hairs

pubescent to sparsely so8
8. 004-002-002

<<Inflorescences>Peduncle>Length

1-3.5 cm9
9. 004-002-001

<<Inflorescences>Rachises>Hairs

pubescent10
10. 004-003-002

<<Inflorescences>Rachises>Length

3.5-7 cm11
11. 004-003-001

<<Leaves>Apex>Shape

rounded and apiculate to acute or acuminate12
12. 002-004-001

<<Leaves>Base>Hairs

subglabrous except sparsely pubescent on main veins when mature13
13. 002-005-002

<<Leaves>Base>Shape

narrowly cuneate14
14. 002-005-001

<<Leaves>Veins>Intersecondary veins

intersecondary veins usually absent;15
15. 002-007-003

<<Leaves>Veins>Midveins

midvein moderate, prominent,16
16. 002-007-001

<<Leaves>Veins>Secondary veins

secondary veins , moderately spaced, originating at moderately acute angles but immediately strongly curved hence often appearing to arise narrowly acutely, strongly curved, fairly prominent,17
17. 002-007-002

<Flowers>Length

2.5-3.5 mm18
18. 005-001

<Flowers>Lower hypanthium

lower hypanthium , narrowed to a short neck, ;19
19. 005-002

<Flowers>Upper hypanthium

upper hypanthium , .20
20. 005-003

<Fruits>Apex

apex ,21
21. 006-004

<Fruits>Base

base .22
22. 006-005

<Fruits>Dimensions

1-1.7 x 0.6-1.3 cm23
23. 006-002

<Fruits>Hairs

glabrous or finely pubescent24
24. 006-001

<Fruits>Shape

elliptic in side view, more or less terete25
25. 006-003

<Habit>Height

2.5-35 m26
26. 001-001

<Inflorescences>Length

4.5-10.5 cm27
27. 004-001

<Inflorescences>Peduncle

peduncle , ;28
28. 004-002

<Inflorescences>Rachises

rhachis , .29
29. 004-003

<Leaves>Apex

apex ,30
30. 002-004

<Leaves>Areolation

areolation complete, very small.31
31. 002-010

<Leaves>Base

base , ;32
32. 002-005

<Leaves>Dimensions

3-16 x 1-3.5(-4) cm33
33. 002-003

<Leaves>Domatia

domatia present in secondary vein-axils;34
34. 002-006

<Leaves>Higher order veins

higher order veins distinct;35
35. 002-009

<Leaves>Shape

oblanceolate or narrowly obovate to narrowly oblong-elliptic36
36. 002-002

<Leaves>Tertiary veins

tertiary veins consistently but weakly percurrent;37
37. 002-008

<Leaves>Texture

coriaceous38
38. 002-001

<Leaves>Veins

venation brochidodromous,39
39. 002-007

<Petiole>Hairs

pubescent, becoming subglabrous when old40
40. 003-002

<Petiole>Length

0.5-1.5 cm41
41. 003-001

Description

Tree, 2.5-35 m. Leaves coriaceous, oblanceolate or narrowly obovate to narrowly oblong-elliptic, 3-16 x 1-3.5(-4) cm, apex rounded and apiculate to acute or acuminate, base narrowly cuneate, subglabrous except sparsely pubescent on main veins when mature; domatia present in secondary vein-axils; venation brochidodromous, midvein moderate, prominent, secondary veins 5-8 pairs, moderately spaced, originating at moderately acute angles but immediately strongly curved hence often appearing to arise narrowly acutely, strongly curved, fairly prominent, intersecondary veins usually absent; tertiary veins consistently but weakly percurrent; higher order veins distinct; areolation complete, very small. Petiole 0.5-1.5 cm, pubescent, becoming subglabrous when old, biglandular. Inflorescence 4.5-10.5 cm, spicate; peduncle 1-3.5 cm, pubescent to sparsely so; rhachis 3.5-7 cm, pubescent. Flowers 2.5-3.5 mm; lower hypanthium 1.5-2 mm, narrowed to a short neck, wholly densely pubescent; upper hypanthium 1-1.5 x 2.5-4 mm, pubescent. Fruit glabrous or finely pubescent, 1-1.7 x 0.6-1.3 cm, elliptic in side view, more or less terete, apex subacute to rounded, base rounded to truncate.

Distribution

Guianas present, Guyana present, Southern America: Colombia (Colombia present); Peru (Peru present); Venezuela (Venezuela present), north-western Brazil present
Peru, Colombia, Venezuela, Guyana and north-western Brazil; only a single specimen has been seen from the Guianas (GU: 1).

Flowers

Flowers ;42
42. 005

Fruits

Fruit , , ,43
43. 006

Habit

Tree, .44
44. 001

Individuals Association

Guyana, Essequibo, Mabura Hill, along road through secondary Wallaba forest (seedlings/saplings with cotyledons), Polak 316

Inflorescences

Inflorescence , spicate;45
45. 004

Leaves

Leaves , , ,46
46. 002

Notes

No flowers or fruits have been seen from the Guianas.
The collection Polak 316 consists of fallen leaves and fruits as well as seedlings, all found under the parent tree. It is probably B. pallidovirens, but the material does not permit certainty. The species could well occur in the Guianas on distributional grounds.

Petiole

Petiole , , biglandular.47
47. 003