Apocopis floccosa

HABIT Perennial. Butt sheaths thickened and forming a bulb; yellow; woolly. Culms 20–40 cm long. Leaf-sheaths pilose; with tubercle-based hairs. Ligule a ciliolate membrane; 5 mm long; lacerate. Leaf-blades 7–14 cm long; 3–6 mm wide. Leaf-blade surface pilose; hairy on both sides; with tubercle-based hairs. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence composed of racemes. Peduncle glabrous.

Racemes 3–4; digitate; erect, or ascending; 3–6 cm long. Central inflorescence axis 1 cm long; pilose. Rhachis fragile at the nodes; subterete; pilose on surface; ciliate on margins. Rhachis hairs yellow. Rhachis internodes clavate; 2.5 mm long.

Spikelets appressed; in pairs. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster. Pedicels adnate at the base to lower glume of sessile spikelet; linear; 4 mm long; ciliate; with 3 mm long hairs.

STERILE SPIKELETS Companion sterile spikelets represented by barren pedicels.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; truncate; 8 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus base obtuse; attached transversely.

GLUMES Glumes dissimilar; reaching apex of florets; firmer than fertile lemma. Lower glume oblong; 6.5 mm long; 0.8 length of spikelet; coriaceous; without keels; 9–13 -veined. Lower glume primary vein falling short of apex. Lower glume lateral veins all falling short of apex. Lower glume surface pilose. Lower glume margins ciliate. Lower glume hairs white, or yellow. Lower glume apex dentate; 3–5 -fid; truncate. Upper glume oblong; 0.8 length of spikelet; chartaceous; 3 -veined. Upper glume lateral veins all falling short of apex. Upper glume surface scabrous; rough above; pilose; hairy below. Upper glume margins ciliate. Upper glume hairs yellow. Upper glume apex truncate.

FLORETS Basal sterile florets male; with palea. Lemma of lower sterile floret lanceolate; 6 mm long; hyaline; 0 -veined; without midvein; without lateral veins; obtuse. Palea of lower sterile floret 0.1 length of lemma. Fertile lemma linear; 8 mm long; hyaline; without keel; 1 -veined. Lemma surface scabrous; pilose. Lemma apex lobed; 2 -fid; with lobes 2 mm long; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; 15 mm long overall; with twisted column. Column of lemma awn 8 mm long; hispidulous. Palea hyaline; 0 -veined; without keels.

FLOWER Lodicules absent. Anthers 2; 3.5 mm long. Stigmas 2, or 3 (rarely).

DISTRIBUTION Asia-tropical: Indo-China.

NOTES Andropogoneae. Bor 1992.

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