Poaceae
Danthoniopsis

Danthoniopsis chimanimaniensis (J.B.Phipps) Clayton

First published in Kew Bull. 21: 123 (1967)
This species is accepted
The native range of this species is E. Zimbabwe to W. Mozambique. It is a perennial and grows primarily in the seasonally dry tropical biome.

Descriptions

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/66153188/66153277

Conservation
EN - endangered
[IUCN]

Morphology General Habit
Perennial; caespitose. Culms 60-100 cm long. Ligule a fringe of hairs. Leaf-blades filiform; convolute; 20-40 cm long; 1-1.5 mm wide. Leaf-blade margins entire.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; oblong; 6-15 cm long. Spikelets in threes. Fertile spikelets pedicelled; 3 in the cluster. Pedicels unequal.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 8-10 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 0.6 mm long; pubescent; obtuse.
Fertile
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 8-10 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 0.6 mm long; pubescent; obtuse.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; reaching apex of florets; thinner than fertile lemma. Lower glume elliptic; 0.8 length of upper glume; chartaceous; pallid, or purple; without keels; 3 -veined. Lower glume apex acuminate. Upper glume ovate; 1 length of spikelet; chartaceous; pallid, or purple; without keels; 3 -veined. Upper glume apex acuminate.
Morphology Reproductive morphology Flowers Florets
Basal sterile florets male; with palea; separately deciduous. Lemma of lower sterile floret similar to upper glume; elliptic; 1 length of spikelet; membranous; 5 -veined; acute. Fertile lemma oblong; 4.5-6 mm long; coriaceous; without keel; 7 -veined. Lemma surface pilose; with a transverse row of hair tufts; bearing 8 hair tufts in all. Lemma margins involute; interlocking with palea keels. Lemma apex lobed; 2 -fid; with triangular lobes; incised 0.25 of lemma length; awned; 3 -awned. Principal lemma awn from a sinus; geniculate; flat below; 12-18 mm long overall; with twisted column; persistent. Lateral lemma awns arising on apex of lobes; 1-2 mm long; shorter than principal. Palea 2 -veined. Palea keels approximate; thickened; winged; narrowly winged.
Morphology Reproductive morphology Flowers
Anthers 3.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp.
Distribution
Africa: southern tropical.
Reference
Arundinelleae. FZ.
[GB]

Gramineae, W. D. Clayton. Flora Zambesiaca 10:3. 1989

Morphology General Habit
Tufted perennial.
Morphology Culms
Culms 60–100 cm. high.
Morphology Leaves Leaf lamina
Leaf laminae setaceous, the margins not crinkly.
Morphology Reproductive morphology Inflorescences
Panicle 6–15 cm. long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets 8–10 mm. long.
Morphology Reproductive morphology Inflorescences Bracts Glume
Inferior glume 4/5 length of spikelet, acuminate.
Inferior
Inferior glume 4/5 length of spikelet, acuminate. Inferior lemma 5-nerved.
Morphology Reproductive morphology Inflorescences Bracts Lemma
Superior lemma 7-nerved, pilose and with a row of 8 tufts across the back, setaceously bilobed (setae 1–2 mm. long), with a persistent awn 12–18 mm. long. Inferior lemma 5-nerved.
Superior
Superior lemma 7-nerved, pilose and with a row of 8 tufts across the back, setaceously bilobed (setae 1–2 mm. long), with a persistent awn 12–18 mm. long.
Morphology Reproductive morphology Inflorescences Bracts Palea
Palea keels narrowly winged to apex.
Morphology Reproductive morphology Flowers Callus
Callus cuneate, narrowly obtuse.
[FZ]

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: threatened. Confidence: low confidence
[AERP]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • 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/

  • IUCN Categories

    • IUCN Red List of Threatened Species
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 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 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0