Deyeuxia innominata

Deyeuxia innominata D.I. Morris. Muelleria 7: 164 (1990).

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

Type of Basionym or Protologue Information: Australia: Tasmania: Wurragurra Creek, 29 Jan 1983, A. Moscal 1569 (HT: HO-62754; IT: NSW).

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 (203), [2009] A.Wilson (ed.). Flora of Australia, Vol 44A. Poaceae 2 (210).

Illustrations: [2008] S.W.L.Jacobs, R.D.B.Whalley & D.J.B.Wheeler, Grasses of New South Wales, 4th edn (203), [2009]. A.Wilson (ed.), Flora of Australia 44A: Poaceae 2 (205, Fig.28).

Habit. Perennial. Culms stature slender to delicate, 15–25(–60) cm tall. Mid-culm internodes glabrous. Lateral branches simple. Leaves mostly basal. Ligule an eciliate membrane, 2–2.5 mm long, membranous, truncate. Leaf-blades straight or curved, linear, conduplicate or involute, 4–8(–15) cm long, 0.5–3 mm wide. Leaf-blade surface smooth or scabrous, glabrous or indumented.

Inflorescence. Inflorescence compound, a panicle. Panicle linear or elliptic or oblong, 2–8 cm long.

Spikelets. Spikelets pedicelled. Fertile spikelets 1-flowered, comprising 1 fertile floret(s), with a barren rachilla extension, oblong, laterally compressed, 2–3.5 mm long.

Glumes. Glumes similar, thinner than fertile lemma. Lower glume oblong, membranous, keeled, 1-keeled, 1 -nerved. Upper glume oblong, 2–3.5 mm long, membranous, keeled, 1-keeled, 1 -nerved.

Florets. Fertile lemma 2.2–3 mm long, without keel, 5 -nerved. Lemma apex muticous or awned, 1 -awned. Median (principal) awn subapical, 0.5–1 mm long overall. Lodicules present. Anthers 3. Grain 1.5 mm long.

Continental Distribution: Australasia.

Australian Distribution: New South Wales, Victoria, Tasmania.

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

Notes. Endemic. In alpine moorlands, boulder fields, sedge-grasslands and heaths, often in damp sites; in Tas. from 550 m to 1300 m. Flowers Jan.-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