Notes:
This species is characterized by its medium-sized petiolate leaves and its few- to several-flowered lax inflorescences. Bremekamp characterized this species to some extent by its lack of characters that distinguish other species he included in Trigonopyren, along with its habitat in humid vegetation in eastern Madagascar. It is similar in aspect to Psychotria tsimihetensis (Trigonopyren multiflorus). As circumscribed here, more than one species may be included in Psychotria alaotra, but little material is available.
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