Duroia nitida Steyerm.

• Authority

  Maguire, Bassett. 1965. The Botany of the Guayana Highland. Mem. New York Bot. Gard. 12 (3): 1-285.

• Family

  Rubiaceae

• Scientific Name

  Duroia nitida Steyerm.

• Type

  Type. Arbor parva; corolla albida; Rio Irubú, Cachoeira Iracema, Amazonas, Brazil, 28-9-1941, A. Ducke 799 (holotype US, isotype NY). Paratypes. BRAZIL. Upper Rio Negro, Sao Felippe, Amazonas, /. T. Baldwin, Jr. 3192 (US); Rio Içana, São Felipe, Amazonas, 16/III/1952, Froes 27875 (NY) ; Rio Negro, Vila Igana, capoeira humida, J. Murca Pires 445 (NY).

• Description

  Latin Diagnosis - Arbuseula, ramis terminalibus vel juvenilibus infra apicem turgidis glabris; foliis ut videtur oppositis petiolatis, petiolis 7-10 mm longis glabris; laminis oblanceolatis vel oblongo-spathulatis apice obtusis vel rotundatis raro subacutis vel obtuse aeutis basi cuneatim aeutis vel subacuminatis 8.5-10(-16) cm longis 2-3.5 (-4.5) cm latis utrinque glabris supra nitidis, nervulis tertiariis supra reticulatis; nervis lateralibus utroque latere 6-8; inflorescentiis masculis aggregatis epedunculatis 8-10-floris, pedicellis 2-6 mm longis glabris; calyce masculo campanulato 5 mm longo 4.5-5 mm lato apice truncato extus cano-sericeo in quinque sitibus inter situs glabro intus dense sericeo; corolla mascula immatura 18 mm longa, tubo immature 9 mm longo basi 3 mm lato extus dense sericeo parte basali 1.5 mm glabra excepta intus parte basali 1.5 mm glabra deinde 1.5 mm barbato delude ad faucem glabro, lobis 6 lanceolatis aeutis 10 mm longis 3 mm latis; antheris 6 linearibus 5.5-6 mm longis; fructu sessili globroso-ovoideo basi rotundato vel subobtuso 2 cm longo 1.5 cm lato.