Schoenocephalium cucullatum Maguire

  • Authority

    Maguire, Bassett & Wurdack, John J. 1958. The botany of the Guayana Highland--Part III. Mem. New York Bot. Gard. 10: 1-156.

  • Family

    Rapateaceae

  • Scientific Name

    Schoenocephalium cucullatum Maguire

  • Description

    Latin Diagnosis - Herbae terrestres perennes, caudice brevissimo erecto, 1-5 cm longo, foliis non compressis; foliis 4-5 (6), 30-50 cm longis; vaginis 10-14 cm longis, plusminusve distichis equitantibusque, subinduratis, marginibus anguste scariosis, ad basim late dilatis; laminis linearibus 20-35 cm longis, apicibus plus-minusve abrupte falcato-acuminatis, nervis a ca. 0.25 mm separatis; pedunculo 1 vel aliquantum 2, 5-8 (10) dm longo, ca. 3 mm diam., valde nervatis ad apicem compresso-dilato, 6-8 mm lato; capitulo sphaerico, 2.5-3.5 em diam.; bracteis involucralibus 2, late lanceolato-acuminatis, 8-12 mm latis, 12-16 mm longis, clemum deflexis; spiculis 40-50, radiatis obtusis albidis vel roseis vel corallinis vel rubriflavis, ea. 18 mm longis, sessilibus; bracteolis 16-18, aradatis, exterioribus 3-7 mm longis, 2-3 mm latis, ovato-oblongis vel oblongis late obtusis (1) 3-5-nervatis, interioribus 8-14 mm longis, 3.0-3.5 mm latis, 5-nervatis, obtusis valde cucullatis; sepalis 3, liberis, lanceolatis aeutis, 16-18 mm longis ad basim membranaceis, sursum induratis; petalis 3, ad basim in tubo 2-4 mm longo connatis; laminis inclusis, lanceolatis obtusis, 8-10 mm longis; staminibus 6, inclusis; filamentis ad basim in tubo bulboso 2 mm longo connatis, partibus liberis ca. 2 mm longis; antheris 4-thecatis, ca. 3 mm longis, exigue furfuraceis, minute 4-annulo-poris; ovario late obovato, 3-loculari, ovulis 2 per loculo; stylis teretibus, truncatis. 9-10 mm longis, ad apicem circumciliatis, ciliis ca. 0.3 mm longis; capsulis induratis ea. 4 mm longis, oblongo-ovatis; seminibus ca. 2 mm longis, maturis, 1 in quoque loculo, compresso-subquadriprismaticis, bitruncatis valde in lonpitudine striatis testa seariosa alveolata exfoliata.

  • Discussion

    Type: perennial herb to 1 m high, caudex somewhat rounded with marceseent leaf sheaths, peduncles usually 1, bracts paired, bracteoles yellowish, orange or reddish at base, white apically, sepals pale yellow or coralline, abundant in open marshy Yapacana Savanna III, 140 m alt., Cerro Yapacana, Amazonas, Venezuela, Dec 31, 1950, Maguire, Cowan & Wurdack 30486 (holotype NY).