Rytidosperma gracile (Hook.f.) Connor
& Edgar. New Zealand J. Bot. 17: 330 (1979).
Classification. (GPWG 2001) : Subfamily Danthonioideae. Tribe
Replacement Name: Danthonia
gracilis Hook. f., Fl. Nov.-Zel. 1: 303, t. 69B (1853).
Type of Basionym or
Protologue Information: LT: D. Munro 120, Feb 1851, New Zealand:
Rotoiti Lake, Aglionby Plains (K). LT designated by Zotov, New Zealand J.
Bot. 1: 123 (1963).
Danthonia gracilis, Notodanthonia gracilis (Hook. f.) Zotov.
(books and floras):  D.Sharp & B.K.Simon, AusGrass, Grasses of
Perennial. Stolons absent or present. Culms 25–60 cm tall. Leaf-sheaths
glabrous on surface or hairy. Ligule a fringe of hairs, 0.2–1 mm long.
Leaf-blades flat or involute, 10–25 cm long, 2–4 mm wide. Leaf-blade surface
Inflorescence solid, a panicle. Panicle 5–10 cm long.
Spikelets pedicelled. Fertile spikelets many flowered, with at least 2 fertile
florets (3–4(-6)), comprising 3–4(–6) fertile floret(s), with diminished
florets at the apex, cuneate, laterally compressed, 8.5–14 mm long.
similar, thinner than fertile lemma. Lower glume lanceolate, membranous,
without keels, 5–7 -nerved. Upper glume lanceolate, 7–12 mm long, membranous,
without keels, 3–5 -nerved.
Fertile lemma 1.6–7.5 mm long, without keel, 9 -nerved. Lemma surface
indumented. Lemma apex lobed, awned, 3 -awned. Median (principal) awn from a
sinus, 4.5–9 mm long overall, with a straight or slightly twisted column.
Column 0.5–1.2 mm long. Lateral lemma awns present. Lodicules present. Anthers
3. Grain 0.9–1.8 mm long.
Distribution: New South Wales, Tasmania.
New South Wales:
South Coast. Tasmania: West Coast, Central Highlands, South West.
gracile is very close to R. semiannulare, but is readily separated
by the extravaginal innovation buds, and by the long hairs on the leaf-sheaths.
It also appears to occupy wetter habitats, and the two taxa are never found
from Tasmania to southern New South Wales, local along damp, mossy margins of
rainforest; common and widespread in New Zealand. Flowers Jan.