GrassBase - The Online World Grass Flora

Descriptions

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

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

Anthephora

HABIT Annual (5), or perennial (6). Rhizomes absent (10), or short (1). Culms erect (6), or geniculately ascending (8), or decumbent (4); 12–59.63–150 cm long; without nodal roots (2/3), or rooting from lower nodes (3/3). Leaf-sheath auricles absent (10), or erect (3). Ligule an eciliate membrane. Leaf-blades stiff (1), or firm (10). Leaf-blade margins unthickened (1/7), or cartilaginous (6/7).

INFLORESCENCE Inflorescence a panicle.

Panicle spiciform. Panicle axis bearing deciduous spikelet clusters.

Spikelets subtended by an involucre. Fertile spikelets sessile; 2 in the cluster (1), or 3 in the cluster (3), or 4 in the cluster (7), or 5 in the cluster (5), or 6 in the cluster (6), or 7–8 in the cluster (5), or 9 in the cluster (4), or 10 in the cluster (1). Companion sterile spikelets sessile; 3 in the cluster (3), or 4 in the cluster (8), or 5 in the cluster (5), or 6 in the cluster (6), or 7–8 in the cluster (5), or 9 in the cluster (4), or 10 in the cluster (1). Involucre composed of imperfect spikelets; free throughout (7), or connate into a disc below (2), or connate into a cup below (2).

STERILE SPIKELETS Companion sterile spikelets represented by single glumes; deciduous with the fertile. Companion sterile spikelet glumes muticous (9), or awned (5).

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate (10), or ovate (1); dorsally compressed; 3–4.659–7 mm long; falling entire; deciduous with accessory branch structures.

GLUMES Glumes one the lower absent or obscure; shorter than spikelet (6), or reaching apex of florets (5); thinner than fertile lemma. Upper glume subulate; hyaline (2/2); 1 -veined (2/2).

FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret linear (1), or lanceolate (3), or oblong (6), or ovate (3); hyaline (1), or membranous (10); 3 -veined (4/9), or 4 -veined (2/9), or 5–6 -veined (5/9), or 7 -veined (6/9), or 8–9 -veined (1/9); obtuse (3), or acute (9), or acuminate (1). Fertile lemma linear (1), or lanceolate (10), or ovate (2); chartaceous (2), or cartilaginous (9); of similar consistency on margins (2), or much thinner on margins (9); without keel; wingless; 3 -veined (8/8), or 4–5 -veined (3/8). Lemma surface smooth (8), or asperulous (2), or scaberulous (1); unwrinkled; without grooves. Lemma margins covering most of palea. Lemma apex obtuse (1), or acute (9), or acuminate (2). Palea 1 length of lemma; chartaceous (2), or cartilaginous (9); 1-keeled.

FLOWER Anthers 3 (10/10).

DISTRIBUTION Africa (10), or Temperate Asia (3), or North America (1), or South America (1).

Please cite this publication as detailed in How to Cite Version: 27th January 2014.