Tetrathylacium Poepp.
  • Nov. Gen. Sp. Pl. 3: 34. 1843. (8-11 Mar 1843)


Cite taxon page as 'WFO (2021): Tetrathylacium Poepp. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-4000038010. Accessed on: 16 Oct 2021'

General Information

Trees, infrequently shrubs, unarmed. Leaves alternate, short-petiolate, the stipules large, foliaceous, caducous, the blade rather large, rounded to cordate at the base, the margins entire to remotely repand-serrate, epunctate, penninerved. Inflorescences axillary, paniculate-spicate, the flowers sessile and densely crowded or not along the secondary rachises (spikes), elongated in fruit. Flowers small, y, each one subtended by a bract and 2 bracteoles, these small and closely appressed along the rachis; calyx urceolate, thickened, 4-gibbous or 4(-5)-angulate (com- pressed by the crowding of the flowers along-the rAchis), 4-lobed, persistent, the lobes small, rounded, membranous, biseriately imbricate; petals none; stamens 4, inserted within the calyx tube, the filaments alternate with the calyx lobes, the anthers introrse, longitudinally dehiscent, exserted or not; ovary sessile, 1-locular, with 4 parietal, many-ovulate placentas; style very short, the stigma obscurely 4- lobed. Fruits baccate, coriaceous, the seeds numerous, exarillate, each seed sur- rounded by a thin membrane (small compartment, of placentary origin?), the testa foveolate-alveolate.

  • Provided by: [A].Flora de Panama
    • Source: [
    • 1
    • ]. 

    Arbustos o árboles, hermafroditas; estípulas presentes, caducas o subpersistentes. Hojas alternas, colgantes, la lámina entera o (usualmente) aserrada, sin glándulas, sin puntos o líneas translúcidos, pinnadamente nervada. Infls. axilares, ± péndulas, espigado-paniculadas. Fls. bisexuales, con un disco de 4 dientes obsoletos; sépalos 4, basalmente connatos en un cáliz urceolado, 4-angulado o -lobulado, los lóbulos imbricados; pétalos ausentes; estambres 4, insertos dentro del tubo del cáliz, los filamentos separados, alternados con los sépalos, subulados; ovario súpero; estilo simple, muy corto; estigmas débilmente 4-lobulados. Frs. abayados; semillas numerosas, sin arilo.

  • Provided by: [B].Manual de Plantas de Costa Rica
    • Source: [
    • 2
    • ]. 

    Habit

    Trees

  • Provided by: [A].Flora de Panama
    • Source: [
    • 1
    • ]. 

    Distribution

    A genus of three species, ranging from Costa Rica to Peru; two species reported from Panama.

  • Provided by: [A].Flora de Panama
    • Source: [
    • 1
    • ]. 

     Information From

    Flora de Panama
    http://www.tropicos.org/Project/PAC
    Robert E. Woodson, Jr. and Robert W. Schery Annals of the Missouri Botanical Garden Vol. 67, No. 4 (1980), pp. ii-xxxiii
    • A Missouri Botanical Garden
    Manual de Plantas de Costa Rica
    http://www.tropicos.org/Project/Costa%20Rica
    Hammel, B. E.; Grayum, M. H.; Herrera, C.; Zamora, N. Manual de Plantas de Costa Rica. Missouri Botanical Garden Press, 2003-2014
    • B Missouri Botanical Garden
    Salicaceae
    • C CC0 1.0 Universal (CC0 1.0).
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • D CC0 1.0 Universal (CC0 1.0).