Monographs Details: Coussarea amapaënsis Steyerm.
Authority: Maguire, Bassett. 1967. The botany of the Guayana Highland--Part VII. Mem. New York Bot. Gard. 17: 1-439.
Family:Rubiaceae
Description:Species Description - Fratex vel arbor parva ad 3.5 m; stipulis inconspicuis truncatis; foliis petio-latis, petiolis 7-11 mm longis; laminis oblongo-ellipticis apice abrupte caudatis, acumine obtuso, basi cuneatim acutis 5.5-10.5 cm longis 2.2-4 cm latis ubique glabris, nervis lateralibus utroque latere 5-7 fere horizontaliter patentibus ante marginem 3-7 mm anastomosantibus, venulis tertiariis conspicuis utrinque laxe prominenteque areolatis; inflorescentia epedunculata vel breviter pedunculato, pedunculo 3 mm longo minute puberulenti, floribus 3-4 ad apices ramulorum terminantibus sessilibus vel breviter pedicellatis, pedicellis 1 mm longis minute puberulentibus; bracteis sub pedicellis duobus erectis subulatis vel oblanceolatis 2-3 mm longis 0.8 mm latis minute puberulentibus; calyce hypanthioque 3-4.5 mm longo minute puberulenti, hypanthio urceolato 1.8-3 mm longo; calyce 1.5-2 mm longo ore inaequaliter 5-clenticulato, dentmn uno oblongo-ligulato obtuso 0.8-1 mm longo 0.2 mm lato, ceteris brevioribus late deltoideis vel lanceolato-deltoideis subacutis 0.1 mm longis vel acuminatis 0.1-0.5 mm longis 0.1-0.3 mm latis; eorollis anguste cylindricis apice sensim angustatis in alabastro 15-17 mm longis extus minute puberulentibus intus glabris, tubo in alabastro 9 mm longo basi 1.2 mm lato, lobis in alabastro 6.5 mm longis; antheris in alabastro linearibus 4.2-4.3 mm longis; stylo 4 mm longo; fructu 20 mm longo 12 mm lato.

Distribution and Ecology - BRAZIL. Amapa: abundant in dense forest, 4 km N or dining and recreation area of ICOMI, Sema do Navio, on Rio Amapari, 31 Jul 1961, 3.5 m high, flowers green, J. M. Pires, Wm. Rodrigues & G. C. Irvine 50285 (holotype NY) ; heavily forested hills, lower slopes of Observatorio Ore Body, Serra do Navio, 8 Nov 1954, fruit white, shrub 1 m tall, Cowan 38162. BRITISH GUIANA. Dense upland forest, Tumatumari, 18 Jun-8 Jul 1921, shrub 5-6 ft tall, Gleason 469. FRENCH GUIANA. Forest shade, Rio Oiapoque, Pedra Alice, 3°40'N, 52°1'W, 17 Aug 1960, shrub 2 m tall, buds white, Irwin, Pires & Westra 47570.