Coussarea lasseri Steyerm.
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Authority
Maguire, Bassett. 1967. The botany of the Guayana Highland--Part VII. Mem. New York Bot. Gard. 17: 1-439.
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Family
Rubiaceae
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Scientific Name
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Description
Latin Diagnosis - Arbor parva, stipulis suborbicularibus rotundatis 3 mm longis supra medium connatis; foliis petiolatis, petiolis 5-7 mm longis; laminis late ovato-ellipticis vellate elliptico-ovatis apice abrupte acuminatis, acumine subacuto 7-9 mm longo, basi cuneatim subacutis vel acutis 11-14.5 cm longis 5.5-7.5 cm latis, nervis lateralibus utroque latere 6-7 adscendentibus non anastomosantibus subtus in axillis pilis brevibus barbellatis, venulis tertiariis utrinque prominentibus laxe reticulatis; inflorescentia cymoso-paniculata late suborbiculari-ovoidea multiflora pedunculata 2.5-3 cm longa 3.5 cm lata (pedunculo non incluso), ramis primariis5-10 mm longis parce puberulentibus; pedunculo 22-27 mm longo minute parceque puberulenti; floribus plerumque tribus ad quinque glomeratis ad apices ramorum principalium umbellatim dispositis; pedicellis minute puberulentibus1.5- 3 mm longis; calyce hypanthioque 5 mm longo extus puberulenti, calyce 2.5-3 mm longo 2 mm lato ore 4-denticulato cum sinubus latis, dentibus deltoideis vel triangulari-lanceolatis obtusis vel subacutis 0.5-0.7 mm longis, aliquis longioribus apice subrecurvatis; disco 1.3 mm longo; corolla in alabastro manifeste acuta vel subacuta, tubo 8 mm longo basi 1.8 mm lato fauce 2 mm lato extus minute papilloso-puberulenti intus glabro, lobis quater lanceolatis acutis 6 mm longis1.5-1.8 mm latis extus minute papillatis vel glabratis intus glabris; staminibus plerumque exsertis, antheris 2.5 mm longis; filamentis 2 mm longis infra faucem sub basi loborum corollae 1.2-1.4 mm insertis; stylo 2.5 mm longo.
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Discussion
This species is characterized by the conical pointed corolla buds, recurved subelongated calyx-teeth, short exserted anthers, axillary tufts of pubescence on some of the lower leaf axils, and relatively short corollas.