Bonnetia roseiflora Maguire

  • Authority

    Maguire, Bassett. 1972. The botany of the Guayana Highland--part IX. Mem. New York Bot. Gard. 23: 1-832.

  • Family

    Theaceae

  • Scientific Name

    Bonnetia roseiflora Maguire

  • Description

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    Latin Diagnosis - Frutex laxus, 2-3 m altus; foliis alternatis, confertis, crasse coriaceis, subsessilibus, petiolo 1-3 mm longo; laminis late obovatis, obtusis, conspicue punctatis ventrale, 6-8 cm longis, 3.5-4.5 cm latis; marginibus integris, minutissime spinulosis; floribus solitariis; pedunculis crassis, ancipitatis, 1-2 cm longis, cum 4 bracteis sepaloideis, ca 1 cm longis, sepalis arte subtendentibus; sepalis 5, late obovatis, ca 1.5 cm longis; petalis 5, ca 2.5 cm longis, roseo-rubris extus, albis intus, collectore fide; capsulis 3-locularibus; stylis seminibusque ignotis.

  • Discussion

    Type. Forming thickets with sprangling slender stems 2-3 m tall; sepals deep rose-red, petals rose-red without and white, cumbre Meseta de Jaua at 1900-2100 m alt, Río Kanarakuni, Edo. Bolívar, Venezuela, 22-27 Mar 1967, Julian A. Steyermark 97843 (holotype VEN, isotype NY).

    Two sheets are available for examination, the holotype specimen bearing a single unopened flower which I hesitate to dissect, and the isotype specimen with a single capsule from which the stylar branches have been lost. The basal portion of the style, however, shows 3 well-defined commissural lines which indicate a 3-celled capsule.