New! - Search other data sources for Andropterum stolzii

Help - Wrong Description?

Kew Data Sources

Kew's Herbarium Catalogue
ePIC - Electronic Plant Information Centre

External Data Sources

Note - this takes you off of our website
Use your browser's back button to return to this page

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.

Andropterum stolzii

HABIT Perennial. Culms decumbent; 30–80 cm long; rooting from lower nodes. Ligule a fringe of hairs. Leaf-blades 5–20 cm long; 3–15 mm wide. Leaf-blade surface pubescent. Leaf-blade margins serrulate; ciliate. Leaf-blade apex attenuate; hardened.

INFLORESCENCE Inflorescence composed of racemes; terminal and axillary.

Racemes 1; single; 4–11 cm long. Rhachis fragile at the nodes; semiterete; ciliate on margins. Rhachis internodes cuneate. Rhachis internode tip transverse; cupuliform.

Spikelets squeezed between internode and pedicel; in pairs. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster. Pedicels cuneate; semiterete; ciliate.

STERILE SPIKELETS Companion sterile spikelets well-developed; male; oblong; asymmetrical; laterally compressed; 6–10 mm long; longer than fertile; deciduous with the fertile. Companion sterile spikelet glumes cartilaginous; winged on keels (both glumes); distinctly veined; 7 -veined; truncate. Companion sterile spikelet lemmas 2; enclosed by glumes; muticous.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 5–8 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus pilose; base obtuse; inserted.

GLUMES Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma. Lower glume lanceolate; 1 length of spikelet; cartilaginous; 2-keeled; wingless. Lower glume primary vein ciliate. Lower glume intercarinal veins absent. Lower glume surface deeply depressed. Lower glume apex acute. Upper glume ovate; cartilaginous; 1-keeled; winged on keel; winged above; 7 -veined. Upper glume apex truncate.

FLORETS Basal sterile florets male; with palea. Lemma of lower sterile floret oblong; 4 mm long; hyaline; 3 -veined; acute. Fertile lemma oblong; 4 mm long; hyaline; without keel; 3 -veined. Lemma apex lobed; 2 -fid; incised 0.33 of lemma length; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; 8–15 mm long overall; with twisted column. Column of lemma awn glabrous. Palea hyaline; 2 -veined.

DISTRIBUTION Africa: west-central tropical, east tropical, and southern tropical.

NOTES Andropogoneae. FW 1995.

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