Deyeuxia carinata

Deyeuxia carinata Vickery. Contr. New South Wales Natl. Herb. 1: 58 (1940).

Classification. (GPWG 2001) : Subfamily Pooideae. Tribe Poeae.

Type of Basionym or Protologue Information: Australia, Mt. Kosciusko: Mueller (K holo).

Key references (books and floras): [2002] D.Sharp & B.K.Simon, AusGrass, Grasses of Australia, [2008] S.W.L.Jacobs, R.D.B.Walley & D.J.B.Wheeler, Grasses of New South Wales (200), [2009] A.Wilson (ed.). Flora of Australia, Vol 44A. Poaceae 2 (200).

Illustrations: [2008] S.W.L.Jacobs, R.D.B.Whalley & D.J.B.Wheeler, Grasses of New South Wales, 4th edn (200), [2009]. A.Wilson (ed.), Flora of Australia 44A: Poaceae 2 (196, Fig.27).

Habit. Perennial. Culms erect or decumbent, 20–55 cm tall, 3 -noded. Lateral branches simple. Leaves mostly basal. Leaf-sheaths scaberulous. Ligule a fringed membrane, a ciliolate membrane, 5–6 mm long, membranous, abaxially hairy, erose, truncate. Leaf-blades linear, flat or conduplicate, 5–12(–17) cm long, 1–4 mm wide. Leaf-blade surface scaberulous or scabrous.

Inflorescence. Inflorescence solid, a panicle. Panicle linear or oblong, dense, 2.5–12 cm long.

Spikelets. Spikelets pedicelled. Fertile spikelets 1-flowered, comprising 1 fertile floret(s), with a barren rachilla extension, lanceolate, laterally compressed, 4.5–6 mm long.

Glumes. Glumes similar, firmer than fertile lemma. Lower glume lanceolate, membranous, much thinner on margins, keeled, 1-keeled, 1 -nerved. Lower glume apex mucronate. Upper glume lanceolate, membranous, keeled, 1-keeled, 1 -nerved. Upper glume surface asperulous.

Florets. Fertile lemma 3.5–5.5 mm long, without keel, 5 -nerved. Lemma apex dentate, awned, 1 -awned. Median (principal) awn dorsal, 4 mm long overall, with a straight or slightly twisted column or with a twisted column. Lodicules present. Anthers 3.

Continental Distribution: Australasia.

Australian Distribution: New South Wales, Victoria, Tasmania.

New South Wales: Southern Tablelands. Victoria: Snowfields. Tasmania: West Coast, Central Highlands, Mt Field, Mt Wellington.

Notes. Endemic. S from the Walcha district. In damp, rocky areas and swamps in montane areas. Flowers Dec.-Mar

AVH 2011


Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith