Notes:
This species is characterized by its deciduous stipules that leave a generally concave scar; its generally elliptic to oblancelate, robust leaves that are subsessile or shortly pedicllate and rounded to cordulate at the base; its terminal, usually rather well developed, corymbiform, pedunculate inflorescences with the axes paired or often verticillate; its small flowers with white to pink corollas; and its small, ovoid, white fruits. This species is circumscribed here based mainly geographic range plus the subsessile leaves with the base rounded to cordulate. Among these plants there is extensive variation in leaf width, from rather broadly elliptic as in the type specimen to quite narrowly oblanceolate. The type and some other specimens are very similar to Psychotria lucidula, which is separated hare based on leaves with well developed petioles and obtuse to cuneate bases. Psychotria marojejensis is also similar in general aspect to Psychotria assimils (whatever that species actually is), which was described from east-central Madagascar.
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