Chenopodium ambiguum R.Br.
Details
Details
Chenopodium ambiguum R.Br., Prodr. Fl. Nov. Holland. 407 (1810)
Nomenclature
R.Br.
R.Br.
1810
407
ICN
Chenopodium ambiguum R.Br.
species
Chenopodium ambiguum
Lectotype (designated by Wilson 1983: 141, as “holotype”, correctable to lectotype, Art. 9.9 of the ICN; McNeill et al. 2012):— AUSTRALIA: Tasmania. Label 1: “Chenopodium ambiguum prodr. 407 | Port Dalrymple or South Coast”; Label 2 (curatorial, printed and typewritten text) “Plants of Australia | Collected by Robert Brown | 1801–1805 | Chenopodium glaucum L. | Type collection of C. ambiguum R. Br. | Tasmania: Georgetown (Port Dalrymple) | January 1804 | Cf. Stearn’s Introduction to Robert Brown’s Prodromus | (1960) prefixed to Hist. Nat. Classica facsimile” (BM001015839). Image available from: https://plants.jstor. org/stable/10.5555/al.ap.specimen.bm001015839. Isolectotype: “R. Brown, Iter Australiense, 1802–5 | [presented by direction of J.J. Bennett, 1876] | No. 3031 | Ch. ambiguum Br. | Port Dalrymple” (K000898449). Image available from: https://plants.jstor.org/stable/10.5555/al.ap.specimen.k000898449.
Classification
Descriptions
Chenopodium ambiguum R.Br.
Prostrate branching herb with diam. up to 6 dm., with stout deeply descending main root; stems glab., ridged, with ∞ branches. Lvs on flattened petioles (2)-5-10-(15) mm. long; lamina (2)-4-10-(20) × (2)-3-5-(12) mm., thick, fleshy, glab. and dark green to reddish above, glaucous to white below, with appressed tomentum; obovate-cuneate to rhomboid to oblong, distantly to rather closely dentate, rarely crenate; often 1 pair of teeth exceeding rest. F1. clusters small, in simple or compound axillary and terminal spikes. Per. segs 3-4, obtuse, not completely covering fr. Seeds 1-1·5 mm. long, black, shining; margins rounded.
Taxonomic concepts
Chenopodium ambiguum R.Br.
Chenopodium ambiguum R.Br.
Chenopodium ambiguum R.Br.
Chenopodium ambiguum R.Br.
Chenopodium ambiguum R.Br.
Chenopodium ambiguum R.Br.
Chenopodium ambiguum R.Br.
Chenopodium ambiguum R.Br.
Chenopodium ambiguum R.Br.
Notes
typification
Lectotype (designated by Wilson 1983: 141, as “holotype”, correctable to lectotype, Art. 9.9 of the ICN; McNeill et al. 2012):— AUSTRALIA: Tasmania. Label 1: “Chenopodium ambiguum prodr. 407 | Port Dalrymple or South Coast”; Label 2 (curatorial, printed and typewritten text) “Plants of Australia | Collected by Robert Brown | 1801–1805 | Chenopodium glaucum L. | Type collection of C. ambiguum R. Br. | Tasmania: Georgetown (Port Dalrymple) | January 1804 | Cf. Stearn’s Introduction to Robert Brown’s Prodromus | (1960) prefixed to Hist. Nat. Classica facsimile” (BM001015839). Image available from: https://plants.jstor. org/stable/10.5555/al.ap.specimen.bm001015839. Isolectotype: “R. Brown, Iter Australiense, 1802–5 | [presented by direction of J.J. Bennett, 1876] | No. 3031 | Ch. ambiguum Br. | Port Dalrymple” (K000898449). Image available from: https://plants.jstor.org/stable/10.5555/al.ap.specimen.k000898449.
Metadata
2b5e8fb1-cf14-425a-92e0-7492bd279da0
scientific name
Names_Plants
13 March 2002
25 June 2018
