Cecropia silvae

<<<<Stipules>Petiole>Trichilia>Hairs>Colour

white1

1. 003-001-002-001-002

<<<<Stipules>Petiole>Trichilia>Hairs>Length

ca. 0.3 mm long2

2. 003-001-002-001-001

<<<Stipules>Blade>Incisions>Incision number

153

3. 003-002-003-001

<<<Stipules>Blade>Incisions>Relative distance

down to the petiole4

4. 003-002-003-002

<<<Stipules>Blade>Lower surfaces>Hairs

on the veins puberulous to subhirtellous, with arachnoid hairs in the areoles, on the smaller veins and often also on the main veins5

5. 003-002-005-001

<<<Stipules>Blade>Upper surfaces>Texture

scabr(idul)ous6

6. 003-002-004-001

<<<Stipules>Petiole>Trichilia>Hairs

these with , (stiff), hairs7

7. 003-001-002-001

<<Pistillate inflorescences>Peduncle>Length

4-7 cm long8

8. 005-001-001

<<Pistillate inflorescences>Perianth>Hairs

with arachnoid hairs to near the aperture of the perianth9

9. 005-003-001

<<Pistillate inflorescences>Spikes>Dimensions

4-5 x 0.5 cm, in fruit up to 8 x 1 cm10

10. 005-002-002

<<Pistillate inflorescences>Spikes>Spike number

411

11. 005-002-001

<<Pistillate inflorescences>Stigma>Shape

penicillate (to subpeltate)12

12. 005-004-001

<<Staminate inflorescences>Anthers>Attachment

after abscission attached to the perianth by the appendages of the thecae13

13. 004-004-001

<<Staminate inflorescences>Peduncle>Length

ca. 9 cm long14

14. 004-001-001

<<Staminate inflorescences>Perianth>Hairs

with sparse, short hairs below the apex15

15. 004-003-002

<<Staminate inflorescences>Perianth>Texture

muriculate at the apex16

16. 004-003-001

<<Staminate inflorescences>Spikes>Dimensions

4-8 x ca. 0.3 cm17

17. 004-002-002

<<Staminate inflorescences>Spikes>Spike number

ca. 40-5018

18. 004-002-001

<<Stipules>Blade>Dimensions

ca. 30-40 x 30-40 cm19

19. 003-002-002

<<Stipules>Blade>Incisions

incisions ,20

20. 003-002-003

<<Stipules>Blade>Lower surfaces

lower surface ;21

21. 003-002-005

<<Stipules>Blade>Texture

subcoriaceous22

22. 003-002-001

<<Stipules>Blade>Upper surfaces

upper surface ,23

23. 003-002-004

<<Stipules>Petiole>Length

up to 45 cm long24

24. 003-001-001

<<Stipules>Petiole>Trichilia

trichilia present,25

25. 003-001-002

<<Stipules>Secondary veins>Secondary vein pair number

ca. 40-4526

26. 003-003-001

<Branchlets>Hairs

hispidulous to subhirsute, partly with uncinate hairs27

27. 002-002

<Branchlets>Prostomata

prostomata present.28

28. 002-003

<Branchlets>Thickness

2-4 cm thick29

29. 002-001

<Fruits>Length

ca. 2.5 mm long30

30. 006-001

<Fruits>Texture

tuberculate31

31. 006-002

<Habit>Height

up to 30 m tall32

32. 001-001

<Pistillate inflorescences>Peduncle

peduncle ;33

33. 005-001

<Pistillate inflorescences>Perianth

perianth ;34

34. 005-003

<Pistillate inflorescences>Spikes

spikes , sessile, ;35

35. 005-002

<Pistillate inflorescences>Stigma

stigma .36

36. 005-004

<Staminate inflorescences>Anthers

anthers .37

37. 004-004

<Staminate inflorescences>Peduncle

peduncle ;38

38. 004-001

<Staminate inflorescences>Perianth

perianth , ;39

39. 004-003

<Staminate inflorescences>Spikes

spikes , stipitate, ;40

40. 004-002

<Stipules>Blade

blade , , ,41

41. 003-002

<Stipules>Petiole

petiole , ;42

42. 003-001

<Stipules>Secondary veins

secondary vein pairs , unbranched, submarginally loop-connected.43

43. 003-003

Branchlets

Branchlets , ;44

44. 002

Description

Tree up to 30 m tall. Branchlets 2-4 cm thick, hispidulous to subhirsute, partly with uncinate hairs; prostomata present. Stipules unknown; petiole up to 45 cm long, trichilia present, these with ca. 0.3 mm long, (stiff), white hairs; blade subcoriaceous, ca. 30-40 x 30-40 cm, incisions 15, down to the petiole, upper surface scabr(idul)ous, lower surface on the veins puberulous to subhirtellous, with arachnoid hairs in the areoles, on the smaller veins and often also on the main veins; secondary vein pairs ca. 40-45, unbranched, submarginally loop-connected. Staminate inflorescences: peduncle ca. 9 cm long; spikes ca. 40-50, stipitate, 4-8 x ca. 0.3 cm; perianth muriculate at the apex, with sparse, short hairs below the apex; anthers after abscission attached to the perianth by the appendages of the thecae. Pistillate inflorescences: peduncle 4-7 cm long; spikes 4, sessile, 4-5 x 0.5 cm, in fruit up to 8 x 1 cm; perianth with arachnoid hairs to near the aperture of the perianth; stigma penicillate (to subpeltate). Fruit ca. 2.5 mm long, tuberculate.

Distribution

French Guiana, Sipaliwini Savanna present, Southern America: Brazil North (Pará present), southern Surinam present

Brazil (Para), southern Surinam (Sipaliwini savanna), and possibly French Guiana (see note).

Fruits

Fruit , .45

45. 006

Habit

Tree .46

46. 001

Notes

The collections Prevost 1514 and 1727 from French Guiana (piste St. Laurent — Apatou) probably represent the juvenile form of C. silvae. The blade is very deeply incised and has to 15, narrow segments, like in the adult form, but the petiole is more densely hirsute, the blade hirsute above, and the segments have long-acuminate apices.

Pistillate inflorescences

Pistillate inflorescences:47

47. 005

Staminate inflorescences

Staminate inflorescences:48

48. 004

Stipules

Stipules unknown;49

49. 003

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