Dulacia crassa

<<<<Calyx>Stamens>Filaments>Shape>Relative distance

to 1 mm1

1. 005-004-003-001-001

<<<Calyx>Stamens>Anthers>Hairs

sparsely hairy on dorsal surface2

2. 005-004-002-002

<<<Calyx>Stamens>Anthers>Shape

broadly oval3

3. 005-004-002-001

<<<Calyx>Stamens>Filaments>Hairs

hairy4

4. 005-004-003-002

<<<Calyx>Stamens>Filaments>Shape

free5

5. 005-004-003-001

<<<Petiole>Blade>Apex>Shape

short-attenuate to rounded6

6. 003-003-004-001

<<<Petiole>Blade>Base>Colour

shiny and olive-brownish when dry7

7. 003-003-005-002

<<<Petiole>Blade>Base>Shape

obtuse to rounded8

8. 003-003-005-001

<<<Petiole>Blade>Primary veins>Shape

raised on upper surface9

9. 003-003-006-001

<<<Petiole>Blade>Primary veins>Texture

rugulose10

10. 003-003-006-002

<<<Petiole>Blade>Secondary veins>Growth form

spreading-ascending11

11. 003-003-007-003

<<<Petiole>Blade>Secondary veins>Secondary vein pair number

6-10 pairs12

12. 003-003-007-001

<<<Petiole>Blade>Secondary veins>Shape

straight13

13. 003-003-007-002

<<Calyx>Free part of the ovary>Hairs

puberulent-tomentulose, abruptly narrowed into the style, the latter glabrous14

14. 005-005-002

<<Calyx>Free part of the ovary>Length

ca. 2.7 mm long15

15. 005-005-003

<<Calyx>Free part of the ovary>Shape

depressed-hemispherical16

16. 005-005-001

<<Calyx>Petals>Colour

white17

17. 005-003-003

<<Calyx>Petals>Dimensions

ca. 10 x 1.3 mm18

18. 005-003-004

<<Calyx>Petals>Shape

ligulate19

19. 005-003-001

<<Calyx>Petals>Texture

fleshy20

20. 005-003-002

<<Calyx>Stamens>Anthers

anthers , ,21

21. 005-004-002

<<Calyx>Stamens>Filaments

filaments , ;22

22. 005-004-003

<<Calyx>Stamens>Relative dimensions

half as long as the petals23

23. 005-004-001

<<Inflorescences>Pedicels>Length

4.5 mm long24

24. 004-007-001

<<Inflorescences>Rachises>Shape

slightly geniculate25

25. 004-006-001

<<Petiole>Blade>Apex

apex , sometimes slightly emarginate,26

26. 003-003-004

<<Petiole>Blade>Base

base , ,27

27. 003-003-005

<<Petiole>Blade>Dimensions

(7-)10-13 x (4.5-)5-6.5 cm28

28. 003-003-003

<<Petiole>Blade>Primary veins

primary vein , ,29

29. 003-003-006

<<Petiole>Blade>Secondary veins

secondary veins , , .30

30. 003-003-007

<<Petiole>Blade>Shape

oblong to ovate-oblong31

31. 003-003-002

<<Petiole>Blade>Texture

coriaceous, not wax-coated32

32. 003-003-001

<Branchlets>Diameter

3-4 mm diam.33

33. 002-001

<Branchlets>Hairs

glabrous34

34. 002-003

<Branchlets>Shape

obtusely angled35

35. 002-002

<Calyx>Free part of the ovary

free part of ovary , , .36

36. 005-005

<Calyx>Margins

margin shallow;37

37. 005-002

<Calyx>Petals

petals , , , ;38

38. 005-003

<Calyx>Shape

shortly cup-shaped39

39. 005-001

<Calyx>Stamens

stamens ,40

40. 005-004

<Habit>Height

to 10 m tall41

41. 001-001

<Inflorescences>Flower number

ca. 10-flowered42

42. 004-003

<Inflorescences>Hairs

glabrous43

43. 004-004

<Inflorescences>Length

ca. 2 cm long44

44. 004-005

<Inflorescences>Pedicels

pedicels .45

45. 004-007

<Inflorescences>Position

axillary46

46. 004-001

<Inflorescences>Rachises

rachis ;47

47. 004-006

<Inflorescences>Shape

racemose-paniculate48

48. 004-002

<Petiole>Blade

blades stiffly , , ,49

49. 003-003

<Petiole>Dimensions

5 x 3 mm50

50. 003-001

<Petiole>Texture

transversely rugulose51

51. 003-002

Branchlets

Branchlets robust (), , .52

52. 002

Calyx

Calyx ,53

53. 005

Description

Small tree to 10 m tall. Branchlets robust (3-4 mm diam.), obtusely angled, glabrous. Petioles 5 x 3 mm, transversely rugulose; blades stiffly coriaceous, not wax-coated, oblong to ovate-oblong, (7-)10-13 x (4.5-)5-6.5 cm, apex short-attenuate to rounded, sometimes slightly emarginate, base obtuse to rounded, shiny and olive-brownish when dry, primary vein raised on upper surface, rugulose, secondary veins 6-10 pairs, straight, spreading-ascending. Inflorescences axillary, racemose-paniculate, ca. 10-flowered, glabrous, ca. 2 cm long, rachis slightly geniculate; pedicels 4.5 mm long. Calyx shortly cup-shaped, margin shallow; petals ligulate, fleshy, white, ca. 10 x 1.3 mm; stamens half as long as the petals, anthers broadly oval, sparsely hairy on dorsal surface, filaments free to 1 mm, hairy; free part of ovary depressed-hemispherical, puberulent-tomentulose, abruptly narrowed into the style, the latter glabrous, ca. 2.7 mm long. Fruit unknown.

Distribution

Guyana present, Kaieteur savanna present, Mt. Roraima present

Guyana, in forests on slopes of Mt. Roraima and in the Kaieteur savanna 2 collections studied.

Fruits

Fruit unknown.54

54. 006

Habit

Small tree .55

55. 001

Individuals Association

Guyana, Guyana, S slope of Mt. Roraima, Arabapu creek bank, FD 7927 Guyana, Kaieteur, lenman 865

Inflorescences

Inflorescences , , , , ,56

56. 004

Petiole

Petioles , ;57

57. 003

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