|
Note - this takes you off
of our website |
GrassBase - The Online World Grass Flora
Descriptions
W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson
© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.
Loudetiopsis chrysothrix
HABIT Perennial; caespitose. Culms erect; 90–120 cm long. Culm-nodes glabrous, or bearded. Ligule a fringe of hairs. Leaf-blades flat, or involute; 15–35 cm long; 2–4 mm wide. Leaf-blade apex attenuate.
INFLORESCENCE Inflorescence a panicle.
Panicle open; oblong; nodding; 10–20 cm long. Panicle branches abruptly recurved near tip; scabrous; pilose.
Spikelets in threes. Fertile spikelets pedicelled; 3 in the cluster. Pedicels filiform; subequal; 1–2 mm long; ciliate.
FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; compressed slightly; 13–20 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 1 mm long; pilose; hairy in 4 tufts; truncate, or unequally 2-toothed.
GLUMES Glumes persistent; exceeding apex of florets; thinner than fertile lemma. Lower glume lanceolate; 8–13 mm long; 0.5–0.6 length of upper glume; chartaceous; dark brown; without keels; 3 -veined. Lower glume surface setose; hairy on veins (in a continuous encrustation); with tubercle-based hairs. Lower glume hairs dark brown. Lower glume apex acuminate. Upper glume lanceolate; 13–20 mm long; chartaceous; dark brown; without keels; 3 -veined. Upper glume surface hispidulous; hairy above. Upper glume apex acuminate.
FLORETS Basal sterile florets male; with palea; separately deciduous. Lemma of lower sterile floret similar to upper glume; lanceolate; 10–18 mm long; chartaceous; 3 -veined; acuminate. Fertile lemma elliptic; 4.5–7 mm long; coriaceous; without keel; 7 -veined. Lemma surface pubescent. Lemma margins involute; interlocking with palea keels. Lemma apex lobed; 2 -fid; with lanceolate lobes; incised 0.1 of lemma length; acuminate; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; flat below; 40–70 mm long overall; with twisted column; deciduous; abscissing from top of lemma. Column of lemma awn 14–34 mm long; hispidulous. Palea 2 -veined. Palea keels approximate; thickened.
FLOWER Anthers 2; 4–6 mm long.
FRUIT Caryopsis with adherent pericarp; glabrous. Hilum linear.
DISTRIBUTION Africa: west tropical. South America: western South America, Brazil, and southern South America.
NOTES Arundinelleae. FTA.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.
