Ruellia longifolia

<<<Calyx lobes>Corolla>Limbs>Colour

white to violet or lilac1

1. 005-004-004-001

<<<Calyx lobes>Corolla>Lobes>Dimensions

ca. 4.5 x 4.5 mm2

2. 005-004-005-002

<<<Calyx lobes>Corolla>Lobes>Hairs

sparingly puberulous3

3. 005-004-005-003

<<<Calyx lobes>Corolla>Lobes>Shape

obovate4

4. 005-004-005-001

<<<Calyx lobes>Corolla>Throat>Dimensions

15 x 6-7 mm5

5. 005-004-003-001

<<<Calyx lobes>Corolla>Tube>Colour

white6

6. 005-004-002-001

<<<Calyx lobes>Corolla>Tube>Length

15 mm long7

7. 005-004-002-003

<<<Calyx lobes>Corolla>Tube>Shape

slightly curved8

8. 005-004-002-002

<<<Calyx lobes>Corolla>Tube>Width

1 mm wide at base9

9. 005-004-002-004

<<<Petiole>Blade>Margins>Margin type

sinuate10

10. 003-004-004-001

<<<Petiole>Blade>Upper surfaces>Colour

dark green11

11. 003-004-003-001

<<<Petiole>Blade>Upper surfaces>Hairs

glabrous12

12. 003-004-003-002

<<<Petiole>Blade>Upper surfaces>Shape

attenuate and slenderly acuminate at apex, attenuate at base and decurrent on petiole13

13. 003-004-003-003

<<Calyx lobes>Corolla>Length

30-40 mm long14

14. 005-004-001

<<Calyx lobes>Corolla>Limbs

limb suberect, ,15

15. 005-004-004

<<Calyx lobes>Corolla>Lobes

lobes , , , retuse at apex;16

16. 005-004-005

<<Calyx lobes>Corolla>Throat

throat turned up from tube, ,17

17. 005-004-003

<<Calyx lobes>Corolla>Tube

tube , , , ,18

18. 005-004-002

<<Calyx lobes>Stamens>Length

ca. 11 mm long19

19. 005-005-001

<<Capsules>Seeds>Colour

dark brown20

20. 006-006-001

<<Capsules>Seeds>Dimensions

2.2 x 2.5 mm21

21. 006-006-002

<<Capsules>Seeds>Hairs

glabrous except for margin22

22. 006-006-003

<<Capsules>Stipes>Length

4 mm long23

23. 006-005-001

<<Capsules>Stipes>Shape

apically acute and apiculate24

24. 006-005-002

<<Inflorescences>Basal bracts>Hairs

glabrous25

25. 004-004-003

<<Inflorescences>Basal bracts>Length

25-35 mm long26

26. 004-004-002

<<Inflorescences>Basal bracts>Shape

linear27

27. 004-004-001

<<Inflorescences>Bracteoles>Dimensions

2 x 0.6 mm28

28. 004-006-002

<<Inflorescences>Bracteoles>Hairs

glabrous to sparingly puberulous29

29. 004-006-003

<<Inflorescences>Bracteoles>Shape

subulate30

30. 004-006-001

<<Inflorescences>Pedicels>Hairs

glabrous to sparingly puberulous31

31. 004-005-002

<<Inflorescences>Pedicels>Length

2-6 mm32

32. 004-005-001

<<Inflorescences>Peduncle>Hairs

glabrous or sparingly and inconspicuously puberulous33

33. 004-003-002

<<Inflorescences>Peduncle>Length

6-15 cm long34

34. 004-003-001

<<Inflorescences>Peduncle>Shape

slender, curved, quadrangular35

35. 004-003-003

<<Petiole>Blade>Dimensions

12-15 x 0.8-2.5 cm36

36. 003-004-002

<<Petiole>Blade>Margins

margin ;37

37. 003-004-004

<<Petiole>Blade>Shape

linear to narrowly lanceolate or narrowly oblong38

38. 003-004-001

<<Petiole>Blade>Upper surfaces

upper surface , , ,39

39. 003-004-003

<<Petiole>Cystoliths>Cystolith number

numerous40

40. 003-006-001

<<Petiole>Primary and secondary veins>Secondary vein pair number

5-7 pairs41

41. 003-005-001

<Calyx lobes>Corolla

corolla ,42

42. 005-004

<Calyx lobes>Dimensions

4.5-6 x 0.75 mm43

43. 005-002

<Calyx lobes>Hairs

glabrous or sparingly puberulous, especially near margin44

44. 005-003

<Calyx lobes>Shape

narrowly linear to subsubulate45

45. 005-001

<Calyx lobes>Stamens

stamens included, .46

46. 005-005

<Capsules>Colour

yellowish-brown47

47. 006-003

<Capsules>Dimensions

12 x 3.5 x 2.5 mm48

48. 006-002

<Capsules>Hairs

minutely puberulous49

49. 006-004

<Capsules>Seeds

seeds , , .50

50. 006-006

<Capsules>Shape

clavate51

51. 006-001

<Capsules>Stipes

stipe , ;52

52. 006-005

<Habit>Height

40-100 cm tall53

53. 001-001

<Inflorescences>Basal bracts

basal bracts , , ;54

54. 004-004

<Inflorescences>Bracteoles

bracteoles , , .55

55. 004-006

<Inflorescences>Flowers

flowers in lax, dichotomously branched cymes;56

56. 004-002

<Inflorescences>Pedicels

pedicels , ;57

57. 004-005

<Inflorescences>Peduncle

peduncle , , ;58

58. 004-003

<Inflorescences>Position

axillary and terminal59

59. 004-001

<Petiole>Blade

blade rather firm, , ,60

60. 003-004

<Petiole>Cystoliths

cystoliths and conspicuous under a lens, especially on lower surface.61

61. 003-006

<Petiole>Hairs

glabrous62

62. 003-002

<Petiole>Length

ca. 5 mm long63

63. 003-001

<Petiole>Primary and secondary veins

primary vein and secondary veins () somewhat more conspicuous on lower surface;64

64. 003-005

<Petiole>Wings

narrowly winged65

65. 003-003

<Stems>Colour

green66

66. 002-001

<Stems>Growth form

creeping at base and rooting at nodes67

67. 002-004

<Stems>Hairs

glabrous68

68. 002-005

<Stems>Shape

quadrangular, with acute angles69

69. 002-003

<Stems>Texture

brittle70

70. 002-002

Calyx lobes

Calyx lobes , , ;71

71. 005

Capsules

Capsule , , , ,72

72. 006

Description

Erect herbs, 40-100 cm tall. Stem green, brittle, quadrangular, with acute angles, creeping at base and rooting at nodes, glabrous. Petiole ca. 5 mm long, glabrous, narrowly winged; blade rather firm, linear to narrowly lanceolate or narrowly oblong, 12-15 x 0.8-2.5 cm, upper surface dark green, glabrous, attenuate and slenderly acuminate at apex, attenuate at base and decurrent on petiole, margin sinuate; primary vein and secondary veins (5-7 pairs) somewhat more conspicuous on lower surface; cystoliths numerous and conspicuous under a lens, especially on lower surface. Inflorescence axillary and terminal, pedunculate, flowers in lax, dichotomously branched cymes; peduncle 6-15 cm long, glabrous or sparingly and inconspicuously puberulous, slender, curved, quadrangular; basal bracts linear, 25-35 mm long, glabrous; pedicels 2-6 mm, glabrous to sparingly puberulous; bracteoles subulate, 2 x 0.6 mm, glabrous to sparingly puberulous. Calyx lobes narrowly linear to subsubulate, 4.5-6 x 0.75 mm, glabrous or sparingly puberulous, especially near margin; corolla 30-40 mm long, tube white, slightly curved, 15 mm long, 1 mm wide at base, throat turned up from tube, 15 x 6-7 mm, limb suberect, white to violet or lilac, lobes obovate, ca. 4.5 x 4.5 mm, sparingly puberulous, retuse at apex; stamens included, ca. 11 mm long. Capsule clavate, 12 x 3.5 x 2.5 mm, yellowish-brown, minutely puberulous, stipe 4 mm long, apically acute and apiculate; seeds dark brown, 2.2 x 2.5 mm, glabrous except for margin.

Distribution

Guianas present, Southern America: Brazil North (Pará present)

The Guianas and Brazil (Pará); occasional; 19 collections studied of which 17 from the Guianas (GU: 3; SU: 4; FG: 10).

Habit

Erect herbs, .73

73. 001

Individuals Association

Guyana, Kukui R. bank, Forest Dept. British Guiana 7473 Suriname, Wilhelmina Gebergte, Irwin et al. 54551 Suriname, Agric. Exp. Sta. Paramaribo, Maguire & Stahel 23880 Mt. Bellevue de l’Inini, de Granville et al. 8147 Guyana, basin of Shodikar Cr. (Essequibo tributary), A.C. Smith 2892 Sommet tabulaire, 50 km SE of Saül, de Granville 3559

Inflorescences

Inflorescence , pedunculate,74

74. 004

Petiole

Petiole , , ;75

75. 003

Phenology

Flowering ; fruiting .

Stems

Stem , , , , .76

76. 002

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