Monographs Details: Kotchubaea neblinensis Steyerm.
Authority: Maguire, Bassett & Wurdack, John J. 1964. The botany of the Guayana Highland--Part V. Mem. New York Bot. Gard. 10: 1-278.
Family:Rubiaceae
Description:Latin Diagnosis - Arbor dioica 20-metralis, ramulis glabris; stipulis persistentibus suborbicularibus apice rotundatis 4 mm longis glabris marginibus ciliolatis exceptis; foliis adultis glabris petiolatis, petiolis 7-15 mm longis glabris; laminis subcoriaceis vel coriaceis oblongo-ellipticis apice obtusis vel rotundatis vel obtuse acutis basi acutis 7-14.5 cm longis 3-7 cm latis glabris, nervis lateralibus utroque latere 4-7 supra tenuissime impressis subtus leviter prominulis; floribus masculis in cymis corymbosis irregulariter 4-6-floris dispositis pedicellis 0.8-4 cm longis glabris; calyce masculo tubuloso obconico-turbinato 6-10 mm longo 7 mm lato apice ciliolato aliter extus glabro intus toto dense flavido-canosericeo apice truncato vel subtruncato; corolla mascula alba vel flavido-alba hypocrateriformi, tubo 35-45 m m longo basi 2.5-4 m diam, superne ampliato fauce 10-11 mm diam, 7-10 mm longa, tubo extus todo cano-puberulenti basi ipsa glabra 1-2 mm excepta, intus fauce dense flavido-villosa 9-10 mm longa pilis adpressis ad 2 mm longis aliter glabra; lobis descendentibus 8 lineari-lanceolatis apice acutis angustatis 29-31 mm longis 2.5-4 mm latis utrinque cano-pulverulentibus; staminibus 8 sessilibus antheris lineari-oblongis 7-7.5 mm longis 0.9-1 mm latis apice acumine lanceolato acuminato 1 mm longo; stylo 3.8 cm longo inferne 2.7 cm longo glabro superne 1.2 cm longo piloso; stigmatibus oblongo-lanceolatis 4.5 mm longis glabris; floribus f emineis non visis; bacca non visa.

Distribution and Ecology - VENEZUELA. Amazonas: Cerro de la Neblina; occasional in forest just north of Camp 3; alt. 650-700 m; tree 20 m X 18 cm; flowers white, faintly green flushed, fading to cream; 17 Nov 1957, B. Maguire, J. Wurdack, W . M. Keith, & C. K. Maguire 42084 (holotype NY).

Discussion:

Fig. 73, E-F.

This species finds it closest relationship with K. palustris Ducke of the upper Rio Negro. It differs from K. palustris in the glabrous outer surface of the staminate calyx-tube, glabrous stipules except for their ciliolate apex, leaf-blades glabrous throughout, longer petioles and pedicels, fewer pairs of lateral nerves, and predominantly obtuse or rounded apex of the leaf-blades.