Lachnagrostis limitanea J.M.Black. Telopea
9:446(2001).
Classification. (GPWG 2001) : Subfamily Pooideae.
Tribe Poeae.
Basionym and/or
Replacement Name: Agrostis
limitanea J.M. Black, Trans. & Proc. Roy. Soc. South Australia
55: 137, f. 5 (1931).
Type of Basionym or
Protologue Information: HT: W.C. Johnston s.n., Mar 1931, Australia: South Australia, near Riverton (AD; IT:
US-1761920 (ex hb. Black)).
Key references
(books and floras): [2002] D.Sharp & B.K.Simon, AusGrass, Grasses of
Australia,
[2006] J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South Australia
(230), [2009] A.Wilson (ed.). Flora of Australia, Vol 44A. Poaceae 2
(183).
Illustrations:
[2006] J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South Australia (230, fig. 174).
Habit.
Perennial. Culms erect, 30–45 cm tall, 5 -noded. Mid-culm nodes glabrous.
Leaf-sheaths scaberulous. Ligule an eciliate membrane, 3 mm long, abaxially
scaberulous, acute. Leaf-blades linear, flat or involute, 3–12 cm long, 1.5–2.5
mm wide. Leaf-blade surface scabrous.
Inflorescence.
Inflorescence compound, a panicle. Panicle pyramidal, effuse, 8–20 cm long.
Spikelets.
Spikelets pedicelled. Fertile spikelets 1-flowered, comprising 1 fertile
floret(s), with a barren rachilla extension, lanceolate, laterally compressed,
2.5–5.5 mm long.
Glumes. Glumes
similar, firmer than fertile lemma. Lower glume lanceolate, membranous, keeled,
1-keeled, 1 -nerved. Upper glume lanceolate, 2.7 mm long, membranous, keeled,
1-keeled, 1 -nerved. Upper glume surface smooth or asperulous.
Florets.
Fertile lemma 1.7 mm long, without keel, 4–5 -nerved. Lemma surface glabrous.
Lemma apex erose or dentate, muticous. Palea present. Lodicules present.
Anthers 3.
Continental
Distribution: Australasia.
Australian
Distribution: South Australia.
South Australia: Northern Lofty.
Notes. Endemic. Restricted
to S.A.
