Rytidosperma carphoides

Rytidosperma carphoides (F. Muell. ex
Benth.) Connor & Edgar. New Zealand J. Bot. 17: 331 (1979).

Classification. (GPWG 2001) : Subfamily Danthonioideae. Tribe

Basionym and/or
Replacement Name:
F. Muell. ex Benth., Fl. Austral. 7: 592 (1878).

Type of Basionym or
Protologue Information
: LT: Adamson 195, 2 Nov 1853, Australia:
Melbourne: Victoria (K). LT designated by Vickery, Contr. N.S.W. Herb.
2: 277 (1956).

Recent synonyms:
Danthonia carphoides F. Muell. ex Benth. var. angustior Vickery, Rytidosperma
(F. Muell. ex Benth.) Connor & Edgar var. angustius
(Vickery) Connor & Edgar, Notodanthonia carphoides (F. Muell. ex
Benth.) Zotov, Austrodanthonia carphoides (Benth.) H.P. Linder, Telopea
7: 271 (1997).

Key references
(books and floras):
[1878] G.Bentham, Flora Australiensis 7 (592 as Danthonia
), [2002] D.Sharp & B.K.Simon, AusGrass, Grasses of
, [2006] J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South
(289), [2008] S.W.L.Jacobs, R.D.B.Walley & D.J.B.Wheeler, Grasses
of New South Wales

[2005] K.Mallet (ed.), Flora of Australia 44B: Poaceae 3 (Fig.
10, A-B), [2006] J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South
 (289, Fig. 223), [2008]
S.W.L.Jacobs, R.D.B.Whalley & D.J.B.Wheeler, Grasses of New South Wales,
4th edn (142).

Derivation: Gk.
-oides, resembling. Habit similar to that of Carpha..

Perennial. Culms erect or geniculately ascending, 10–50 cm tall, 3 -noded.
Mid-culm nodes glabrous. Leaf-sheaths hairy. Ligule a fringe of hairs, 0.5–1 mm
long. Leaf-blades filiform, involute, 3–20 cm long, 1 mm wide. Leaf-blade
surface indumented.

Inflorescence solid, a panicle. Panicle ovate, 1.5–4 cm long, 1.5–2.5 cm wide.

Spikelets pedicelled. Fertile spikelets many flowered, with at least 2 fertile
florets (3–7), comprising 3–7 fertile floret(s), with diminished florets at the
apex, cuneate, laterally compressed, 6–14 mm long.

Glumes. Glumes
similar, thinner than fertile lemma. Lower glume elliptic, membranous, much
thinner on margins, without keels, 5–9 -nerved. Upper glume elliptic, 6–9 mm
long, membranous, without keels, 5–9 -nerved. Upper glume surface smooth or

Fertile lemma 3–4.4 mm long, without keel, 9 -nerved. Lemma surface indumented.
Lemma apex lobed, awned, 1 -awned. Median (principal) awn from a sinus, 3–6 mm
long overall, with a straight or slightly twisted column. Lateral lemma awns
absent. Lodicules present. Anthers 3. Grain 1.7–2 mm long.

: Australasia.

: South Australia, New South Wales, Victoria, Tasmania.

South Australia:
Northern Lofty, Murray, Southern Lofty, South-eastern. New South Wales:
Central Coast, Northern Tablelands, Central Tablelands, Southern Tablelands,
Central-Western Slopes, South-Western Slopes, North-Western Plains,
South-Western Plains. Victoria: East Gippsland, Grampians, Midlands,
Murray Mallee, Riverina, Volcanic Plain, Wannon, Wimmera. Tasmania:
Midlands, East Coast.

Ranging from the Queensland border to Adelaide and Tasmania, altitude 680–800
m, sclerophyll scrub and eucalypt woodlands, grassy hillsides, in heavy soils;
frequently common where the grass is cut by grazing or mowing, not common in
lank grass. Flowers Oct. to Dec.


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