flora neotropica - CNCFlora

62 Flora Neotropica
41. Stipules caducous, not adnate to base of petiole; rachis of inflorescence 1-2.5 mm
thick; petal margins ciliate.
42. Leaf undersurface with distinct, prominulous, parallel secondary venation,
90? to primary veins. 6.1. C. bernardii.
42. Leaf undersurface densely lanate pubescent and smooth, venation obscured
beneath pubescence.
43. Leaves bluntly or shortly acuminate to obtuse; receptacle subcampanulate,
3-5 mm thick at top; inflorescence a much-branched panicle.
44. Leaves ovate to oblong, 2.5-8.5 cm broad. 3. C. paraensis.
44. Leaves oblong-lanceolate, 1.5-4 cm broad. 5. C. maguirei.
43. Leaves prominently acuminate; receptacle cylindrical, ca. 2 mm thick
at top; inflorescence often with only short 2-3 flowered branches.
45. Inflorescences erect, much-branched, predominantly terminal panicles.
1. C. guianensis.
45. Inflorescences little-branched racemose panicles, axillary or predominantly
axillary, but with a small terminal branch.
46. Inflorescences single racemose, reflexed panicles; bracteoles
persistent.
40. C. reflexa.
46. Inflorescences erect, terminal and in the upper 2-6 axils; bracteoles
caducous. 1. C. guianensis.
40. Exterior of receptacle and calyx lobes with dense pubescence forming a complete
covering.
47. Leaf undersurface prominently reticulate.
48. Leaves with deep, well-defined stomatal cavities, 2.5-6 cm long, bluntly acute
at apex.
29.1. C. amaralae.
48. Leaves without stomatal cavities, acuminate at apex, or with poorly defined
shallow cavities, then exceeding 6 cm in length.
49. Receptacle gradually tapering to a long slender pedicel; exterior of receptacle
rufous-pubescent; primary veins not impressed on upper leaf
surface. 42. C. cognata.
49. Receptacle changing abruptly to a short thick pedicel; exterior of receptacle
brown-pubescent; primary veins impressed on upper leaf surface.
29. C. racemosa.
47. Leaf undersurface with plane to prominent venation but not prominently reticulate.
50. Receptacle slightly curved anteriorly in bud.
51. Leaf with midrib much impressed above. 42. C. cognata.
51. Leaf with midrib plane above.
52. Leaves 4-7 cm long; primary veins 7-10. 53. C. pernambucensis.
52. Leaves 9-18.5 cm long; primary veins 12-23.
53. Exterior of receptacle and calyx lobes gray-puberulous; primary
leaf veins 18-23, slightly impressed above. 51. C. impressa.
53. Exterior of receptacle and calyx lobes brown-tomentose; primary
leaf veins 12-14, plane above. 43. C. multiflora.
50. Receptacle erect, not curved in bud.
54. Outer surface of petals distinctly pubescent.
55. Leaves 2.5-5.5 cm long; primary veins 5-9.
56. Leaves oblong-lanceolate to oblong, acumen 5-7 mm long, base
cuneate; petioles 5-7 mm long.
55. C. parvifolia.
56. Leaves orbicular to elliptic, acumen 0-3 mm long, base rounded
to cordate; petioles 2 mm long.
20. C. uiti.
55. Leaves (4-)6-16 cm long; primary veins 9-17.
57. Flowers 6-12 mm long; receptacle cylindrical, ca. 2 mm thick
at top below calyx lobes.
58. Inflorescence and flowers densely ferrugineous-sericeous;
flowers 8-12 mm long; petioles 5-10 mm long; receptacle
not striate on exterior. 52. C. meridionalis.
58. Inflorescence and flowers with short gray pubescence; flowers
6-8 mm long; petioles 3-7 mm long; exterior of receptacle
longitudinally striate. 44. C. ulei.
57. Flowers 12-20 mm long; receptacle subcampanulate, 4-6 mm
thick.