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Descriptions

W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson

© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.

Agropyropsis

HABIT Perennial. Culms erect; 20–60 cm long. Ligule an eciliate membrane. Leaf-blades coriaceous.

INFLORESCENCE Inflorescence composed of racemes.

Racemes single; bilateral. Rhachis fragile at the nodes; semiterete. Spikelet packing broadside to rhachis; lax.

Spikelets appressed; solitary. Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 3–6 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 4.5–7 mm long; falling entire; deciduous with accessory branch structures. Rhachilla internodes definite.

GLUMES Glumes collateral; shorter than spikelet; firmer than fertile lemma. Lower glume oblong; 1 length of upper glume; coriaceous; without keels; 5 -veined. Lower glume lateral veins ribbed. Lower glume surface without pits. Lower glume apex obtuse. Upper glume oblong; 1–1.4 length of adjacent fertile lemma; coriaceous; without keels; 5 -veined. Upper glume lateral veins ribbed. Upper glume apex obtuse.

FLORETS Fertile lemma elliptic; membranous; without keel; wingless; 5 -veined. Lemma surface unwrinkled; without grooves. Lemma apex obtuse. Palea keels ciliolate. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Anthers 3. Ovary glabrous.

FRUIT Caryopsis with adherent pericarp; oblong; dorsally compressed. Hilum elliptic.

DISTRIBUTION Africa.

Please cite this publication as detailed in How to Cite Version: 3rd February 2016.