Download Copy a link to this page Cite this record

Rytidosperma buchananii (Hook.f.) Connor & Edgar

Scientific name record
Names_Plants record source
Is NZ relevant
This is the current name
This record has collections
This record has descriptions
This is indigenous
Threat status: Declining
Show more

Click to collapse Details Info

Rytidosperma buchananii (Hook.f.) Connor & Edgar, New Zealand J. Bot. 17: 320 (1979)
Rytidosperma buchananii (Hook.f.) Connor & Edgar

Click to collapse Biostatus Info

Endemic
Wild
New Zealand
Political Region

Click to collapse Nomenclature Info

Connor & Edgar
Hook.f.
(Hook.f.) Connor & Edgar
1979
320
ICN
species
Rytidosperma buchananii

Click to collapse Classification Info

buchananii

Click to collapse Vernacular names Info

Click to collapse Descriptions Info

Rytidosperma buchananii (Hook.f.) Connor & Edgar

Loose, dull green tussocks; leaves semi-pungent usually much < mature culms, disarticulating at ligule; new shoots intra vaginal. Sheaths pale stramineous, glabrous, rarely with long scattered hairs, collar-hairs (0.5)-1-2-(3) mm long; ligule 0.2-0.3- (0.6) mm long; lamina to 30 cm long, folded or tightly rolled, sometimes almost filiform, glabrous or rarely with long scattered hairs, margins scabrous near base and again towards tip. Culms up to 50- (70) cm tall, glabrous, minutely scabrous below inflorescence. Panicle erect, to 10 cm long, usually ± compact with several spikelets; rhachis and filiform pedicels closely short-scabrous with slightly longer hairs below spikelets and sometimes at branch axils. Spikelets (3)-4-5-(6)-flowered, awns slightly exserted from glumes. Glumes purpled centrally, lanceolate, subobtuse, (6)—7—10—(11) mm long, ± equal, lower 5-7-nerved, upper 3-5-nerved. Lemma 2—3—(3.5) mm long, 7-9-nerved, upper and lower rows of hairs usually sparse or lacking between dense marginal tufts, upper row < lemma lobes, lower row overlapping upper, glabrous and shining elsewhere, rarely with one or two hairs centrally; lemma lobes 1—2.5—(3) mm long, tapering to a minute to short fine awn. Central awn 2.5-5.5-(6.5) mm long; column 1-2 mm long, occasionally not developed, ± = palea and upper lemma hairs. Palea 3- 4 mm long, ± = upper lemma hairs, glabrous between keels, margins rarely with a few long hairs. Callus c. 0.4 mm long with marginal hair tufts much overlapping lower lemma hairs. Rhachilla 0.5-1 mm long. Anthers 0.5-1.3 mm long. Caryopsis 1.2-1.8 × 0.5-0.7 mm; embryo 0.5-0.7 mm long; hilum 0.2- 0.3 mm long. Endemic.

Rytidosperma buchananii (Hook.f.) Connor & Edgar

2n = 48
n = 36
2n = c. 72
2n = 72

Rytidosperma buchananii (Hook.f.) Connor & Edgar

Loose, dull green tussocks; leaves semi-pungent, usually « mature culms, disarticulating at ligule; branching intravaginal. Leaf-sheath pale stramineous, glabrous, rarely long scattered hairs; apical tuft of hairs (0.5)-1-2-(3) mm. Ligule 0.2-0.3-(0.6) mm. Leaf-blade to 30 cm, folded or tightly rolled, sometimes almost filiform, glabrous or rarely some long scattered hairs, margins scabrid near base and again towards tip. Culm to 50-(70) cm, internodes smooth but minutely scabrid below inflorescence. Panicle erect, to 10 cm, usually ± compact, of several spikelets; rachis and filiform pedicels closely short-scabrid with slightly longer hairs below spikelets and sometimes at branch axils. Spikelets (3)-4-5-(6)-flowered, awns slightly exserted from glumes. Glumes purplish centrally, lanceolate, subobtuse, (6)-7-10-(11) mm, ± equal; lower 5-7-nerved, upper 3-5-nerved. Lemma 2-3-(3.5) mm, 7-9-nerved, upper and lower rows of hairs usually sparse or lacking between dense marginal tufts, upper row &lt; lemma lobes, lower row overlapping upper, glabrous and shining elsewhere, rarely one or two hairs centrally; lobes 1-2.5-(3) mm, tapering to a minute to short fine awn; central awn 2.5-5.5-(6.5) mm, column 1-2 mm, occasionally not developed, ≈ palea and upper lemma hairs. Palea 3-4 mm, ≈ upper lemma hairs, interkeel glabrous, margins rarely with a few long hairs. Callus c. 0.5 mm, marginal hair tufts much overlapping lower lemma hairs. Rachilla 0.5-1 mm. Anthers 0.5-1.3 mm. Caryopsis 1.2-1.8 × 0.5-0.7 mm; embryo 0.5-0.7 mm; hilum 0.2-0.3 mm. 2n= 72. Plate 12B.

Click to collapse Taxonomic concepts Info

Danthonia buchananii Hook.f.
Rytidosperma buchananii (Hook.f.) Connor & Edgar
Danthonia semiannularis var. breviseta Hook.f.
Rytidosperma buchananii (Hook.f.) Connor & Edgar
Notodanthonia buchananii (Hook.f.) Zotov
Rytidosperma buchananii (Hook.f.) Connor & Edgar
Rytidosperma buchananii (Hook.f.) Connor & Edgar
Rytidosperma buchananii (Hook.f.) Connor & Edgar
Rytidosperma buchananii (Hook.f.) Connor & Edgar
Rytidosperma buchananii (Hook.f.) Connor & Edgar
Rytidosperma buchananii (Hook.f.) Connor & Edgar
Rytidosperma buchananii (Hook.f.) Connor & Edgar
Rytidosperma buchananii (Hook.f.) Connor & Edgar
Rytidosperma buchananii (Hook.f.) Connor & Edgar
Rytidosperma buchananii (Hook.f.) Connor & Edgar
Rytidosperma buchananii (Hook.f.) Connor & Edgar
Rytidosperma buchananii (Hook.f.) Connor & Edgar
Rytidosperma buchananii (Hook.f.) Connor & Edgar
Rytidosperma buchananii (Hook.f.) Connor & Edgar
Rytidosperma buchananii (Hook.f.) Connor & Edgar
Rytidosperma buchananii (Hook.f.) Connor & Edgar
Rytidosperma buchananii (Hook.f.) Connor & Edgar

Click to collapse Collections Info

Rytidosperma buchananii (Hook.f.) Connor & Edgar
[Not available]

Click to collapse Metadata Info

bc5610e3-4c5d-41a5-9bc5-3f2ad99f4742
scientific name
Names_Plants
1 January 2000
20 March 2006
Click to go back to the top of the page
Top