Ouratea pseudotatei Maguire & Steyerm.

  • Authority

    Maguire, Bassett. 1989. The Botany of the Guayana Highland- Part XIII. Mem. New York Bot. Gard. 51: 1-127.

  • Family

    Ochnaceae

  • Scientific Name

    Ouratea pseudotatei Maguire & Steyerm.

  • Description

    Latin Diagnosis - Arbuscula, foliis coriaceis elliptico- vel ovatooblongisapice acutis basi rotundatis vel obtusis12.5-18 cm longis (4-)6-6.7 cm latis, marginibusobscure crenulatis, dentibus obtusis 5-6 per cm,supra nitidis nervis lateralibus primariis intermediisqueconspicue impressis, venulis tertiariisaliquantum inegularibus subalveolatis, subtusinter nervos leviter impressis aliquantum granulosis;petiolis 5-15 mm longis; inflorescentiapaniculata multiramosa 17-18 cm longa 9-15cm lata, axibus 4-10 late patentibus inferioribusmedianisque 4-8.5(-18) cm longis; floribus 2-3-fasciculatis vel supeme solitariis; pedicellis 5-6(-12) mm longis; alabastro ovoideo subacuto6-6.5 mm longo; sepalis oblongo- vel ovato-lanceolatisobtusis 7.5-8 mm longis 3.5-4 mm latis;petalis late obovatis apice rotundatis breviter unguiculatis 8 mm longis 6.5 mm latis; antheris 7m m longis valde rugulosis; gynophoro sub anthesiovario breviore.

  • Discussion

    Type. Guyana. Arabaru River (Kako tributary), upper Mazamni drainage, Jan 1939, A. S. Pinkus 277 (holotype NY)

    Specimens examined. GUYANA, Manawarin River, Feb 1883, Jenman 1931 (NY); Pinkus 277, type, cited above; basin of Essequibo River, nr. mouth of Onoro Creek, 1°35'N, 1937, A. C. Smith 2730 (NY); 2nd hiU behind Mission, 24 Sep 1952, Forest Dept. Field No. G237 (NY).

    This species resembles O. tatei but diflfers from it in having the leaf margins obscurely crenulate and a more conspicuously nerved, shining upper leaf surface.