e-Key v3 - Trianoptiles
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Cyperaceae - Caricoideae - Schoeneae - Trianoptiles Fenzl

Description :

  • Annuals, small, tufted
  • Culms with aerial nodes
  • Leaves basal and cauline, eligulate; sheath with adaxial apex truncate; blade linear, without a keeled midrib, profile thickly crescentiform
  • Inflorescence with spikelets of 2 kinds: partially subterranean among basal leaves, female; exposed spikelets bisexual, paniculate
  • Bisexual spikelets greenish, cymose, with 3-5, ± 2-ranked or distichous glumes, mostly with 2 perfect florets associated with uppermost glumes; perianth of 3 segments, hairy at base, expanded in middle and usually terminated by (1)3 stiff bristles; stamens 3; style 3-branched
  • Nutlet obovate, 3-angled
  • Female spikelets of 2-4, tightly sheathing, sterile, subterranean glumes and one tubular, fertile glume; perianth 0; style 3-branched
  • Nutlet ± globular

Nomenclature:

  • Trianoptiles Fenzl
    • Fenzl: 113 (1836)
    • Levyns: 21 (1943)
    • Levyns: 119 (1950)
    • Bond & Goldblatt: 47 (1984)
  • Ecklonea Steud.
    • Steudel: 138 (1829) not Ecklonia of Hornem.
    • Schrader: 34 (1832) as Ecklonia
    • Kunth: 287 (1837) as Ecklonia
    • Clarke: 271 (1898), 759 (1900)
    • Schonland: 56 (1922) as Ecklonia
  • Carpha R.Br. in part
    • Pfeiffer: 177 (1931)
  • Carpha R.Br. subgen. Trianoptiles (Fenzl) Kük
    • Kükenthal.: 109 (1939)

Distribution & Notes:

  • Southern Africa : Species 3, Northern, Western and Eastern Cape

References:

  • BOND, P. & GOLDBLATT, P. 1984. Plants of the Cape Flora: A descriptive catalogue. Journal of South African Botany Suppl . Vol. 13
  • CLARKE, C.B. 1898. Cyperaceae . Flora capensis 7
  • CLARKE, C.B. 1900. Cyperaceae . Flora capensis 7. Addenda and corrigenda
  • FENZL, E. 1836. In S.L. Endlicher, Genera plantarum . Beck, Vienna
  • KÜKENTHAL, G. 1939. Vorarbeiten zu einer Monographie der Rhynchosporoideae . VI. Feddes Repertorium 47
  • KUNTH, C.S. 1837. Enumeratio plantarum 2. J.G. Cotta, Stuttgart & Tübingen
  • LEVYNS, M.R. 1943. A revision of Trianoptiles Fenzl. Journal of South African Botany 9
  • LEVYNS, M.R. 1950. Cyperaceae . In R.S. Adamson & T.M. Salter, Flora of the Cape Peninsula . Juta, Cape Town
  • PFEIFFER, H. 1931. Decas Cyperacearum criticarum vel emendatarum 3. Feddes Repertorium 29
  • SCHONLAND, S. 1922. Introduction to South African Cyperaceae . Memoirs of the Botanical Survey of South Africa No. 3
  • SCHRADER, H.A. 1832. 1. Cyperaceae . Analecta ad floram Capensem . Dieterich, Göttingen
  • STEUDEL, E.G. 1829. Einige Bemerkungen über Kap'sche Restiaceen, Cyperaceen und Gramineen. Flora 12