Rytidosperma clelandii

Rytidosperma clelandii (Vickery) Connor
& Edgar. New Zealand J. Bot. 17: 332 (1979).

Classification. (GPWG 2001) : Subfamily Danthonioideae. Tribe

Basionym and/or
Replacement Name:
Vickery, Contr. New South Wales Natl. Herb. 1: 297 (1950).

Type of Basionym or
Protologue Information
: HT: Cleland H262, 30 Oct 1926, Australia:
south Australia: Upper Waterfall Gully (NSW; IT: JBC).

Recent synonyms:
Notodanthonia clelandii, Rytidosperma clelandii, Joycea clelandii (Vickery)
H.P. Linder.

Key references
(books and floras):
[2002] D.Sharp & B.K.Simon, AusGrass, Grasses of
, [2006] J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South

[2005] K.Mallet (ed.), Flora of Australia 44B: Poaceae 3 (Fig. 6,
G-H), [2006] J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South Australia
 (302, fig. 237).

Perennial. Culms 40–75 cm tall, 3–4 -noded. Mid-culm nodes glabrous.
Leaf-sheaths smooth or scaberulous. Ligule a fringe of hairs, 0.5 mm long.
Leaf-blades filiform, involute, 15–30 cm long, 0.75–2 mm wide. Leaf-blade
surface scabrous.

Inflorescence solid, a panicle. Panicle lanceolate, 8–13 cm long.

Spikelets pedicelled. Fertile spikelets many flowered, with at least 2 fertile
florets (3–6), comprising 3–6 fertile floret(s), with diminished florets at the
apex, cuneate, laterally compressed, 16–25 mm long.

Glumes. Glumes
similar, thinner than fertile lemma. Lower glume lanceolate, membranous, much
thinner on margins, without keels, 5–9 -nerved. Upper glume lanceolate, 16–20
mm long, membranous, without keels, 7 -nerved. Upper glume surface asperulous.

Fertile lemma 3–9 mm long, without keel, 9 -nerved. Lemma surface indumented.
Lemma apex lobed, awned, 3 -awned. Median (principal) awn from a sinus, 13–18.5
mm long overall, with a twisted column. Column 5–7.5 mm long. Lateral lemma
awns present. Lodicules present. Anthers 3. Grain 1.5–2.4 mm long.

: Australasia.

: South Australia.

South Australia:
Yorke Peninsula, Southern Lofty.

Notes. Similar
in appearance to R. pallidum.

to the Mt Lofty region at Adelaide, altitude 200–700 m, common in light shade
in heathy understory under Eucalyptus woodland, on thin, skeletal, stony
soils on steeper slopes. Flowers Nov.

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