Eragrostis fimbrillata Cope
First published in Kew Bull. 53: 146 (1998)
This species is accepted
The native range of this species is Zambia. It is a perennial and grows primarily in the seasonally dry tropical biome.
Descriptions
- Morphology General Habit
- Perennial. Butt sheaths glabrous; persistent and investing base of culm; with compacted dead sheaths. Culms erect; 15-35 cm long. Culm-internodes eglandular. Lateral branches lacking. Leaf-sheaths longer than adjacent culm internode; eglandular; without keel; glabrous on surface. Ligule a fringe of hairs. Leaf-blades filiform; involute; 7-13 cm long; 0.5 mm wide; eglandular. Leaf-blade surface glabrous.
- Morphology Reproductive morphology Inflorescences
- Inflorescence a panicle. Panicle open; elliptic, or oblong; 7-12 cm long. Panicle branches eglandular; glabrous in axils; with insignificant pulvini. Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform; 3-12 mm long.
- Morphology Reproductive morphology Inflorescences Spikelets
- Spikelets comprising 9-12 fertile florets; with diminished florets at the apex. Spikelets elliptic, or oblong; laterally compressed; 4.5-7.5 mm long; 2.5-2.8 mm wide; breaking up at maturity; rhachilla persistent; retaining paleas. Rhachilla internodes eventually visible between lemmas.
- Fertile
- Spikelets comprising 9-12 fertile florets; with diminished florets at the apex. Spikelets elliptic, or oblong; laterally compressed; 4.5-7.5 mm long; 2.5-2.8 mm wide; breaking up at maturity; rhachilla persistent; retaining paleas. Rhachilla internodes eventually visible between lemmas.
- Morphology Reproductive morphology Inflorescences Bracts Glume
- Glumes similar; shorter than spikelet. Lower glume ovate; 1.3-1.7 mm long; 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume surface asperulous. Lower glume apex acute. Upper glume lanceolate; 1.3-1.7 mm long; 0.5-0.66 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume surface asperulous. Upper glume apex acute.
- Morphology Reproductive morphology Flowers Florets
- Fertile florets divergent. Fertile lemma elliptic, or oblong; 2-2.3 mm long; membranous; purple, or pallid and purple; tipped with last colour; keeled; 3 -veined. Lemma lateral veins distinct. Lemma surface scaberulous; rough above. Lemma apex obtuse; pubescent. Palea 2 -veined. Palea keels scabrous. Palea apex ciliate. Apical sterile florets resembling fertile though underdeveloped.
- Morphology Reproductive morphology Flowers
- Lodicules 2; cuneate; fleshy. Anthers 3; 1.2-1.7 mm long.
- Morphology Reproductive morphology Fruits
- Caryopsis with adherent pericarp.
- Distribution
- Africa: southern tropical.
- Reference
- Eragrostideae. Cope 1996.
Gramineae, T. Cope. Flora Zambesiaca 10:2. 1999
- Morphology General Habit
- Caespitose perennial without rhizomes or stolons; culms up to 35 cm tall, erect, unbranched, eglandular, the nodes not exposed; basal leaf sheaths glabrous, chartaceous, terete, eglandular, persistent; ligule a line of hairs; leaf laminas up to 13 cm long and 0.5 mm in diameter, tightly involute and setaceous, ciliate or pilose at the extreme base, otherwise glabrous, eglandular.
- Morphology Reproductive morphology Inflorescences
- Panicle 7–12 cm long, narrowly oblong-elliptic, loose and open, the spikelets evenly distributed on filiform pedicels 3–12 mm long, the primary branches not in whorls, terminating in a fertile spikelet, glabrous in the axils, eglandular.
- Morphology Reproductive morphology Inflorescences Spikelets
- Spikelets 4.5–7.5 × 2.5–2.8 mm, oblong-elliptic, laterally compressed, 9–12-flowered, the florets disarticulating from the apex downwards, the rhachilla fragile; glumes subequal, 1.3–1.7 mm long, reaching from 1/2 to 2/3 the way along the adjacent lemmas, keeled, narrowly lanceolate in profile, thinly scaberulous especially above, subacute at the apex; lemmas 2–2.3 mm long, keeled, narrowly oblong-elliptic in profile, membranous with distinct lateral nerves, diverging from the rhachilla at less than 45°, those in opposite rows not imbricate, the rhachilla visible between them, pallid with purple apex to purple throughout, scaberulous above, minutely fimbriate at the obtuse apex; palea glabrous on the flanks, fimbriate at the apex, the keels slender, wingless, scabrid; anthers 3, 1.2–1.7 mm long.
- Morphology Reproductive morphology Fruits
- Caryopsis not seen.
Sources
-
Flora Zambesiaca
- Flora Zambesiaca
- http://creativecommons.org/licenses/by-nc-sa/3.0
-
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
-
Herbarium Catalogue Specimens
- Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/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