Tabernaemontana pachysiphon, Aka Conopharyngia angolensis (Stapf) Stapf, Conopharyngia cumminsii Stapf, Conopharyngia holstii (K.Schum) Stapf, Conopharyngia pachysiphon (Stapf), Sarcopharyngia angolensis (Stapf) L.Allorge, Tabernaemontana angolensis Stapf, Tabernaemontana holstii K.Schum, Voacanga dichotoma K.Schum, is a shrub and small tree native to Ghana, Togo, Benin, Nigeria, Cameroon, Central African Republic, Gabon, Democratic Republic of the Congo, Tanzania and Zambia, and is in bloom at the Fairchild Botanical gardens in Miami.
Tabernaemontana pachysiphon grows as a shrub or small tree up to 15 metres (49 ft) tall, with a trunk diameter of up to 40 centimetres (16 in). Its fragrant flowers feature white to pale yellow corolla lobes. When I saw it I knew it was from the Apocynaceae family of Frangipani. It smells just as fragrant.
Genus Tabernaemontana is named after Jakob Theodor von Bergzaben (1520 – 1590) (Latinised surname Tabernaemontanus meaning “tavern in the mountain”), who was a German herbalist. “Pachysiphon” is related to Greek “pakhys” “thick, large, massive,” and “siphon” is Latin sipho (genitive siphonis) “a siphon,” from Greek siphon “pipe, tube for drawing wine from a cask,” of unknown origin.