flora neotropica - CNCFlora

Systematic Treatment 15
58. Venation of leaf underside minutely reticulate, forming a network with less than
0.25 mm between reticulations; reticulation apparent because of absence of
pubescence on veins; leaves thin-chartaceous; stipules usually caducous (Peru;
Colombia; Brazil, Amazonia).
94. L. urceolaris.
58. Venation and reticulation coarse, with 1-2 mm between reticulations; pubescence
obscuring much of veins; leaves thick-coriaceous; stipules persistent.
59. Leaf apex with finely pointed, well-developed acumen; rachis of inflorescence
glabrous (Costa Rica; Panama; Guianas; Brazil, Para). 95. L. affinis.
59. Leafapex acute or with short blunt acumen; rachis ofinflorescence pubescent
(Venezuela; Guyana; Brazil, Amazonia).
93. L. coriacea.
56. Flowers 1.5-2 mm long; receptacle campanulate.
60. Primary veins slightly impressed on upper surface; fruit exterior sordid-rufous-pubescent;
branches of inflorescence densely tomentose to puberulous.
61. Leaves thick-coriaceous; stipules caducous; flowers in clusters on short thick peduncles;
stamens 3 (Colombia, Pacific Coast).
96. L. glauca.
61. Leaves thin, chartaceous-membranous; stipules persistent; flowers on primary and secondary
branches of inflorescence; stamens 6-7 (Guianas; Brazil, Amapa, Parf).
97. L. davillifolia.
60. Primary veins plane or prominent on upper surface; fruit exterior glabrous, drying yellow;
branches of inflorescence glabrous to puberulous.
62. Leaves (11-)13-18 cm long, 4-8 cm broad (Guianas; Brazil, Amazonia). 98. L. elliptica.
62. Leaves 4-10(-12) cm long, 2-5.5 cm broad (Venezuela; Guianas; Brazil, Amazonia;
Bolivia).
99. L. canescens.
50. Leaf underside densely lanate-arachnoid or with stomatal cavities, never pulverulent.
Subg. Licania sect. Licania.
63. Flowers 6-7.5 mm long, stamens often connate for half their length or free.
64. Stamens connate for half their length; leaves prominently reticulate but without stomatal
cavities; petioles eglandular (Guyana; Surinam).
100. L. couepiifolia.
64. Stamens free to base; leaves with conspicuous stomatal cavities; petioles with 2 glands near
base of lamina (Brazil, Amapf).
101.1. L. naviculistipula.
63. Flowers not exceeding 5.5 mm in length; stamens free almost to base.
65. Leaf base distinctly cordate or subcordate; leaves usually ovate-orbicular.
66. Leaves triangular-ovate, 10-16 cm long, membranous (Peru, Loreto). 101. L. trigonioides.
66. Leaves orbicular to ovate, 3-9 cm long, usually coriaceous.
67. Young stems hispid; lower surface of leaves with hirsutulous-hispid venation, the
apex with well-developed acumen (Venezuela, Amazonas). 102. L. cordata.
67. Young stems puberulous to tomentose; lower surface of leaves glabrous or lanate on
venation, the apex acute or bluntly acuminate.
68. Flowers 4.5-5.5 mm long; receptacle urceolate; stipules 5-6 mm long (Venezuela,
Amazonas).
103. L. foldatsii.
68. Flowers 1.5-3.5 mm long; receptacle campanulate; stipules 1-3 mm long.
69. Leaves submembranous, the lower surface with deeply cut venation, the
pubescence occurring in cavities and hard to remove; fertile stamens 5-11.
70. Stamens 8-11; petioles ca. 5 mm long; stipules 3-6 mm long (Amazonian
Colombia; Venezuela; Brazil).
140. L. mollis.
70. Stamens 5-6; petioles 1.5-3 mm long; stipules 2-2.5 mm long (Amazonian
Venezuela; Colombia).
104. L. hebantha.
69. Leaves thick-coriaceous, the lower surface with shallow venation, not forming
cavities, the lanate pubescence easily rubbed off; fertile stamens 3.
71. Pubescence obscuring venation; stipules adnate to extreme base of petiole
(Venezuela, Bolivar).
105. L. steyermarkii.
71. Pubescence not obscuring venation; stipules axillary (Venezuela).
106. L. subrotundata.
65. Leaf base rounded to cuneate; leaves only rarely ovate-orbicular.
72. Midrib and primary veins distinctly impressed on leaf upper surface.
73. Leaf underside with well-developed stomatal cavities filled with lanate pubescence;
petioles 8-17 mm long.
74. Stomatal cavities conspicuous because of glabrous nerves and veins; leaves 4-
8.5 cm long (Venezuela; Brazil, Amazonas).
107. L. crassivenia.
74. Stomatal cavities less conspicuous because of puberulous nerves and venation;
leaves (8-)10-25 cm long.
75. Flowers ca. 1.5-2.5 mm long; inflorescence much branched, predominantly
axillary; fertile stamens 3 with 4 sterile staminodes; petioles conspicuously
2-4-glandular (Surinam).
108.1. L. jimenezii.