Evolutionary Relationships and Biogeography of the Ant-Epiphytic Genus Squamellaria (Rubiaceae: Psychotrieae) and Their Taxonomic Implications
Fig 8
Squamellaria huxleyana Chomicki, spec. nov.
(A) Habit showing the domatium. (B, C) Successive stages of flower bud opening, showing the corolla tube elongation. (D) Open corolla tube with the four squamellae. (E) Fruit with a bilobed-quadrangular shape in cross section. (F) Leaf, showing the festooned brochidromous venation (connecting to other secondary veins via multiple loops and not reaching the margin).