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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.
Iseilema anthephoroides
HABIT Annual; caespitose. Culms erect, or geniculately ascending; 20–100 cm long. Leaf-sheaths keeled. Ligule a ciliolate membrane. Leaf-blades 2.5–8 cm long; 3–5 mm wide. Leaf-blade margins tuberculate-ciliate; hairy at base. Leaf-blade apex obtuse.
INFLORESCENCE Synflorescence compound; linear. Inflorescence composed of racemes; terminal and axillary; deciduous as a whole; subtended by a spatheole; enclosed. Spatheole elliptic; 0.75–1.2 cm long; herbaceous; without tubercles.
Racemes 1; single; oblong; 0.4–0.8 cm long; bearing few fertile spikelets; bearing 1 fertile spikelets on each. Rhachis internodes linear; 0.5–0.8 mm long. Raceme-bases brief (truncate); pilose.
Spikelets in threes. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 2 in the cluster. Pedicels filiform; 3–3.5 mm long.
STERILE SPIKELETS Basal sterile spikelets well-developed; 4 in number; forming an involucre about the fertile; with both pairs arising at about the same level; pedicelled; deciduous with the fertile. Basal sterile spikelet pedicels 0.5–1 mm long. Basal sterile spikelets barren; elliptic; 6.5–7 mm long; equalling fertile. Basal sterile spikelet glumes herbaceous; glabrous, or pilose.
Companion sterile spikelets represented by barren pedicels.
FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 6–6.5 mm long; falling entire; deciduous with accessory branch structures.
GLUMES Glumes dissimilar; firmer than fertile lemma. Lower glume lanceolate; 1 length of spikelet; chartaceous; without keels; keel-less except near apex. Lower glume apex dentate; 2 -fid; caudate. Upper glume lanceolate; 1 length of spikelet; chartaceous; 3 -veined. Upper glume apex acuminate.
FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret subulate; hyaline; 2 -veined. Fertile lemma linear; membranous; 1 -veined. Lemma apex entire; awned; 1 -awned. Principal lemma awn geniculate; 12–14 mm long overall; with twisted column. Column of lemma awn glabrous. Palea absent or minute.
FLOWER Anthers 3; 2.5–2.75 mm long.
DISTRIBUTION Asia-tropical: India.
NOTES Andropogoneae. Patunkar.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.
