GrassBase - The Online World Grass Flora


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

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

Germainia khasyana

HABIT Perennial. Butt sheaths glabrous. Culms 25–40 cm long; 10–20 -noded. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; 1–1.5 mm long. Leaf-blades lanceolate; 2.5–4 cm long; 2–3 mm wide. Leaf-blade surface pilose; sparsely hairy; hairy adaxially. Leaf-blade margins scabrous.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 1; single; oblong; 1–1.5 cm long; bearing few fertile spikelets; bearing (2–)3(–4) fertile spikelets on each. Rhachis obsolete (raceme capitate).

Spikelets in pairs. Fertile spikelets pedicelled; 1 in the cluster. Companion sterile spikelets sessile; 1 in the cluster. Pedicels 2.5–4 mm long.

STERILE SPIKELETS Companion sterile spikelets well-developed; male; oblong; dorsally compressed; 15–17 mm long; longer than fertile; persistent. Companion sterile spikelet glumes coriaceous; 7–9 -veined (lower); entire; emarginate, or truncate; muticous. Companion sterile spikelet lemmas 2; enclosed by glumes; 14 mm long; entire; muticous.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; subterete; 6 mm long; falling entire. Spikelet callus linear; 1–1.2 mm long; pilose; base pungent; attached obliquely. Spikelet callus hairs red; 1.5 mm long.

GLUMES Glumes similar; reaching apex of florets; firmer than fertile lemma. Lower glume oblong; 6 mm long; 1.2 length of upper glume; 1 length of spikelet; coriaceous; without keels; 0–5 -veined. Lower glume apex truncate. Upper glume oblong; 5 mm long; coriaceous; without keels; 0–3 -veined. Upper glume primary vein absent, or distinct. Upper glume apex obtuse.

FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret oblong; 2.5–3 mm long; hyaline; entire, or lobed; 2 -fid; truncate. Fertile lemma hyaline; without keel. Lemma apex entire; awned; 1 -awned. Principal lemma awn geniculate; 35–55 mm long overall; with twisted column. Column of lemma awn 25–40 mm long; pubescent. Palea absent or minute.

FLOWER Lodicules absent. Anthers 2.

FRUIT Caryopsis with adherent pericarp; 3.2 mm long.

DISTRIBUTION Asia-tropical: India and Indo-China.

NOTES Andropogoneae. Chaianan.

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