- Family: Poaceae Barnhart
Thelepogon Roth
This genus is accepted, and its native range is Tropical Africa to Namibia, India to Indo-China, S. Malesia to NE. Australia.
Descriptions
According to Flora of Tropical East Africa
[FTEA]Gramineae, W. D. Clayton, S. M. Phillips And S. A. Renvoize. Flora of Tropical East Africa. 1974
- Habit
- Annual
- Leaves
- Leaf-blades broad; ligule shortly membranous
- Inflorescences
- Inflorescence a terminal bunch of shortly pedunculate racemes; internodes thickened, clavate, glabrous
- Sessile
- Sessile spikelet dorsally compressed; callus obtuse and fitting the concave top of the internode; lower glume crustaceous, convex, without keels or wings; upper glume broadly convex across the back, wingless; lower floret ♂, with hyaline lemma and well-developed palea; upper lemma bifid, passing between the teeth into a glabrous awn
- Fruits
- Caryopsis ellipsoid
- Spikelets
- Pedicelled spikelet absent, represented only by a flattened linear pedicel. Sessile spikelet dorsally compressed; callus obtuse and fitting the concave top of the internode; lower glume crustaceous, convex, without keels or wings; upper glume broadly convex across the back, wingless; lower floret ♂, with hyaline lemma and well-developed palea; upper lemma bifid, passing between the teeth into a glabrous awn
- Pedicelled
- Pedicelled spikelet absent, represented only by a flattened linear pedicel.
According to Flora Zambesiaca
[FZ]Gramineae, T. A. Cope. Flora Zambesiaca 10:4. 2002
- Habit
- Annual; ligule shortly membranous; leaf laminas broad.
- Inflorescences
- Inflorescence a terminal cluster of shortly pedunculate racemes; rhachis internodes thickened, clavate, glabrous.
- Spikelets
- Sessile spikelet dorsally compressed; callus obtuse and fitting the concave apex of the internode; inferior glume crustaceous, convex across the back, coarsely rugose, without keels or wings; superior glume broadly convex across the back, rugose, wingless; inferior floret male, with hyaline lemma and well developed palea; superior lemma bifid, passing between the teeth into a glabrous awn. Pedicelled spikelet absent, represented only by a flattened linear pedicel.
- Fruits
- Caryopsis ellipsoid.
According to GrassBase - The Online World Grass Flora
[GB]nonem
- Habit
- Annual. Culms erect; 10-92.5-150 cm long. Lateral branches sparse (1/1). Ligule a ciliolate membrane. Leaf-blades lanceolate.
- Inflorescences
- Inflorescence composed of racemes. Racemes single (1), or paired (1), or digitate; bearing 10-13 fertile spikelets on each (1/1). Rhachis fragile at the nodes; angular. Rhachis internodes linear (1), or cuneate (1). Rhachis internode tip transverse; cupuliform. Raceme-bases filiform. Spikelets in pairs. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster. Pedicels linear.
- Sterile
- Companion sterile spikelets represented by barren pedicels.
- Spikelets
- Spikelets comprising 1 basal sterile florets; 1 fertile florets. Spikelets lanceolate (1), or elliptic (1), or ovate (1); dorsally compressed; 5-7.75-13 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus pubescent (1), or pilose (1); base obtuse; inserted. Companion sterile spikelets represented by barren pedicels.
- Fertile
- Spikelets comprising 1 basal sterile florets; 1 fertile florets. Spikelets lanceolate (1), or elliptic (1), or ovate (1); dorsally compressed; 5-7.75-13 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus pubescent (1), or pilose (1); base obtuse; inserted.
- Glume
- Glumes exceeding apex of florets; firmer than fertile lemma. Lower glume ovate; indurate; without keels; 7 -veined (1), or 9 -veined (1). Lower glume surface muricate (1), or rugose (1). Lower glume apex acute. Upper glume elliptic (1), or ovate (1); chartaceous; without keels (1), or 1-keeled (1); 3 -veined. Upper glume surface smooth (1), or rugose (1). Upper glume apex acuminate.
- Florets
- Basal sterile florets male; with palea (1), or without significant palea (1). Lemma of lower sterile floret lanceolate (1), or elliptic (1); hyaline; 2 -veined (1/1). Fertile lemma lanceolate (1), or ovate (1); hyaline; without keel; 5 -veined (1/1). Lemma apex lobed; 2 -fid; incised 0.5 of lemma length; awned. Principal lemma awn from a sinus; geniculate. Palea hyaline; without keels.
- Distribution
- Africa (1), or Tropical Asia (1), or Australasia (1).
Images
Distribution
Native to:
Angola, Benin, Burkina, Cameroon, Central African Repu, Chad, Congo, Eritrea, Ethiopia, Ghana, Guinea, India, Jawa, Lesser Sunda Is., Malawi, Mozambique, Myanmar, Namibia, Niger, Nigeria, Queensland, Senegal, Sudan, Tanzania, Thailand, Togo, Uganda, Zambia, Zimbabwe
Introduced into:
Pakistan
Accepted Species
Other Data
Thelepogon Roth appears in other Kew resources:
Bibliography
First published in J.J.Roemer & J.A.Schultes, Syst. Veg., ed. 15 bis 2: 46 (1817)
Literature
Flora of West Tropical Africa
- F.T.A. 9: 34 (1917).
- Syst. Veg. 2: 46 (1817)
Flora Zambesiaca
- Syst. Veg. 2: 46 (1817).
Flora of Tropical East Africa
- Syst. Veg. 2: 46 (1817)
Sources
Flora Zambesiaca
Flora Zambesiaca
http://creativecommons.org/licenses/by-nc-sa/3.0
Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0
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 Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0
Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0