Raddia stolonifera R.P.Oliveira & Longhi-Wagner

First published in Pl. Syst. Evol. 270: 176 (2008)
This species is accepted
The native range of this species is Brazil (Bahia). It is a herbaceous bamboo and grows primarily in the wet tropical biome.

Descriptions

Morphology General Habit
Perennial; caespitose. Stolons present. Culms erect; (23.5-)33-50 cm long; 0.5-1 mm diam. Culm-internodes distally pilose. Culm-nodes brown; pubescent. Lateral branches lacking. Leaves cauline; 13-21 per branch; distichous. Leaf-sheaths pilose. Ligule a ciliolate membrane; 0.5-0.7 mm long. Leaf-blade base truncate, or broadly rounded; symmetrical, or asymmetrical; with a brief petiole-like connection to sheath; petiole 0.05-0.1 cm long; petiole pubescent. Leaf-blades lanceolate, or ovate; 3.5-5.4 cm long; 7-15 mm wide. Leaf-blade midrib conspicuous. Leaf-blade surface glabrous. Leaf-blade margins scabrous. Leaf-blade apex acute; asymmetrical and apiculate.
Morphology Reproductive morphology Inflorescences
Monoecious; with male and female spikelets in different inflorescences. Inflorescence composed of racemes; axillary; with 1-2 peduncles per sheath. Peduncle 2.7-3.8 cm long. Racemes 1; single; 1.8-2.5(-3) cm long; 2-4 mm wide; bearing few fertile spikelets; bearing 3-6(-8) fertile spikelets on each. Rhachis angular. Spikelets solitary. Fertile spikelets pedicelled. Male spikelets pedicelled. Pedicels filiform (male), or cuneate (female); scaberulous. Male inflorescence axillary; unlike female; a panicle (1.5-3.3cm). Male spikelets distinct from female; 1 flowered; separately deciduous; lanceolate; 5.5-6 mm long; glabrous. Male spikelet glumes absent. Male spikelet lemma 3 -veined; awned; with 0.8 mm long awn.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate, or ovate; dorsally compressed; 4-6.8 mm long; 1-2 mm wide; breaking up at maturity; disarticulating below each fertile floret.
Fertile
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate, or ovate; dorsally compressed; 4-6.8 mm long; 1-2 mm wide; breaking up at maturity; disarticulating below each fertile floret.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes deciduous; similar; shorter than spikelet, or reaching apex of florets; thinner than fertile lemma. Lower glume lanceolate, or ovate; 3-6.8 mm long; chartaceous; much thinner on margins; without keels; 3(-5) -veined. Lower glume apex acuminate; mucronate, or awned; 1 -awned. Lower glume awn 0.5-2 mm long. Upper glume lanceolate, or ovate; 3-6.8 mm long; chartaceous; with cartilaginous margins; without keels; 3(-5) -veined. Upper glume apex acute, or acuminate.
Morphology Reproductive morphology Flowers Florets
Fertile florets female. Fertile lemma lanceolate; (3.2-)4-4.7 mm long; 0.7-1.2 mm wide; coriaceous; without keel. Lemma margins involute. Lemma apex obtuse. Palea coriaceous.
Morphology Reproductive morphology Flowers
Lodicules 3. Anthers 3.
sex Male
Male inflorescence axillary; unlike female; a panicle (1.5-3.3cm). Male spikelets distinct from female; 1 flowered; separately deciduous; lanceolate; 5.5-6 mm long; glabrous. Male spikelet glumes absent. Male spikelet lemma 3 -veined; awned; with 0.8 mm long awn.
Distribution
South America: Brazil.
Reference
Olyreae. Oliveira & L-Wagner 2009.
[GB]

Sources

  • GrassBase - The Online World Grass Flora

    • Clayton, W.D., Vorontsova, M.S., Harman, K.T. and Williamson, H. (2006 onwards). GrassBase - The Online World Grass Flora.
    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2023. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0
  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2023. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0
  • Neotropikey

    • Milliken, W., Klitgard, B. and Baracat, A. (2009 onwards), Neotropikey - Interactive key and information resources for flowering plants of the Neotropics.
    • http://creativecommons.org/licenses/by/3.0