Calophyllum is a genus of tropical flowering plants in the family Calophyllaceae.
 They are mainly distributed in Asia, with some species in Africa, the Americas, Australasia, and the Pacific Islands.
Acronychia wilcoxiana is a rainforest tree in the citrus family, found in eastern Australia.
 The common name is silver aspen.
 The true aspens of the northern hemisphere belong to the genus "Populus" in the family Salicaceae.
Palaquium calophyllum is a tree in the Sapotaceae family.
 It grows up to 20 m tall.
 The bark is brownish grey.
 Inflorescences bear up to 12 flowers.
 The fruits are round, up to 2 cm in diameter.
 The specific epithet "calophyllum " is from the Greek meaning "beautiful leaves".
 Habitat is forests from sea-level to 800 m altitude.
 "P. calophyllum" is found in Sumatra, Borneo, the Philippines, Maluku and New Guinea.
Azara is a genus of ten species of flowering plants in the family Salicaceae, native to temperate to subtropical regions of South America.
 They are most often found at woodland margins and lakesides.
Abatia (syn.
 "Raleighia" Gardner) is a genus of about ten species of Central and South American trees in the willow family Salicaceae (following the Angiosperm Phylogeny Group classification).
 Previously it was treated in the family Flacourtiaceae, or tribe Abatieae of the family Passifloraceae (Lemke 1988) or Samydaceae by G. Bentham & J.D. Hooker and Hutchinson.
Azara microphylla (common name boxleaf azara) is a species of flowering plant in the family Salicaceae, native to Chile and Argentina.
 Growing to 10 m , it is a small, upright, evergreen tree or large shrub.
 It has small, shiny, very dark green leaves and tiny, vanilla-scented flowers in winter.
 It is the hardiest of the azaras, withstanding temperatures down to -15 C , but in cooler temperate regions requires some protection from cold winds.
 It also tolerates full shade.
Ryania is a genus of plants in the family Salicaceae.
; it was previously listed in the now defunct family Flacourtiaceae.
Dovyalis is a genus of shrubs and small trees. Recent genetic evidence has shown the genus to belong to the family Salicaceae; formerly it was classified in the family Flacourtiaceae.
 The 15 species are native to Africa (Ethiopia south to South Africa) and southern Asia (India, Sri Lanka).
 Some are cultivated for their fruit.
Acronychia laevis is a rainforest plant in the citrus family, growing in eastern Australia.
 The common name is the hard aspen.
 The habitat is dry rainforest, up to 700 metres above sea level.
 It grows from the upper Clarence River, New South Wales to Cape York Peninsula at the northernmost tip of Australia.
 It is also found on New Caledonia and Lord Howe Island.
 The true aspens of the Northern Hemisphere belong to the genus "Populus" in the family Salicaceae.
Azara serrata (saw-toothed azara) is a species of flowering plant in the family Salicaceae, native to Chile.
 It is an evergreen shrub growing to 4m (12ft), with glossy serrated leaves and clusters of scented yellow flowers in summer.
 In temperate regions it requires a sheltered position.

Question: Which of these is in the family Salicaceae, Calophyllum or Azara?
Answer: Azara