Psychotria egensis Müll.Arg.
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Authority
Maguire, Bassett. 1972. The botany of the Guayana Highland--part IX. Mem. New York Bot. Gard. 23: 1-832.
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Family
Rubiaceae
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Scientific Name
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Type
Type. Ega, Amazonas, Brazil, 1831, Poeppig s n.
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Discussion
The involucral bracts are situated at the base of the heads of flowers themselves, and not at the base of the branches of the inflorescence. The outermost bract varies from ovate-triangular to lanceolate or linear-oblanceolate, and show extremes of 6-21 × 2-8 mm. The foliaceous calyx lobes may be equal or unequal, with one of them often more elongated. Each flower is subtended by a closely navicular bract. The inflorescence is composed of two to four sessile heads of 15-20 flowers either spicately arranged or varying to racemosely or umbellately disposed of five axes, of which the lowest two or three are spreading to reflexed. Each head is subtended by one elongated descending bract.