Published November 20, 2013 | Version v1
Taxonomic treatment Open

Moquiniastrum G. Sancho 2013, gen. et stat. nov.

  • 1. División Plantas Vasculares, Museo de La Plata, Facultad de Ciencias Naturales y Museo, UNLP, Paseo del Bosque s / n, 1900 La Plata, Buenos Aires Argentina
  • 2. Instituto de Biologia, Universidade Federal da Bahia, Campus Universitário de Ondina, 40170 - 110 Salvador, Bahia, Brazil

Description

Moquiniastrum (Cabrera) G. Sancho, gen. et stat. nov.

Basionym: Gochnatia sect. Moquiniastrum Cabrera (1971: 73). Type:— Moquiniastrum polymorphum (Lessing 1832: 101) G. Sancho.

Gochnatia subgen. Hedraiophyllum Lessing (1832: 103). Type:— Gochnatia cordata Lessing (1830: 263).

Description: —Shrubs, sub-shrubs or trees. Leaves alternate, petiolate to sub-sessile, limb discolor, elliptic or rarely ovate or cordate, pubescent usually on abaxial face (indumentum of 2–5-armed trichomes) or less commonly on both faces, margin entire or serrate. Capitula isomorphic or sub-dimorphic, homogamous (florets female or hermaphrodite) or heterogamous (florets female and hermaphrodite) arranged in usually leafy paniculiform or less commonly corymbiform synflorescences. Involucre campanulate to cylindrical, shorter than the florets; phyllaries (2–)3–6-seriate, graduate, coriaceous or sub-coriaceous, pubescent. Hermaphrodite florets with corollas whitish, whitish-yellow or greenish, actinomorphic, deeply 5-lobed, lobes revolute; anthers with apiculate apical appendages and long, glabrous, laciniate or plumose tails; styles with stylopodium, bilobed, style branches short, dorsally glabrous. Functionally female florets marginal in heterogamous capitula, with corollas whitish, whitish-yellow or greenish, usually sub-zygomorphic or less commonly actinomorphic, deeply 5-lobed, lobes straight to slightly revolute; anthers reduced to staminodes; styles similar to hermaphrodite florets. Cypselas cylindrical to cuneate, costate, sericeous. Pappus of 2–3- seriate scabrous bristles, whitish when live, brownish when dry, equally wide throughout, unequal in length, the longest ones plumose at the apex.

Number of species and distribution: — Twenty-one species from central-eastern Argentina (3 species), eastern Brazil (19 species), Bolivia (3 species), Paraguay (6 species), Peru (1 species), Venezuela (1 species), and Uruguay (1 species). Notes: 1. The number of species per country could potentially rise after a more exhaustive collection in eastern Peru and Bolivia; 2. All Asteraceae types originally housed in Berlin (B) were destroyed in 1943 (for a summary see Hiepko 1987).

Notes

Published as part of Sancho, Gisela, Funk, Ki. A. & Roque, Nádia, 2013, Moquiniastrum (Gochnatieae, Asteraceae): disentangling the paraphyletic Gochnatia, pp. 26-34 in Phytotaxa 147 (1) on page 29, DOI: 10.11646/phytotaxa.147.1.3, http://zenodo.org/record/5100233

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Linked records

Additional details

Biodiversity

Collection code
B
Family
Asteraceae
Genus
Moquiniastrum
Kingdom
Plantae
Order
Asterales
Phylum
Tracheophyta
Scientific name authorship
G. Sancho
Taxonomic status
gen. et stat. nov.
Taxon rank
genus

References

  • Cabrera, A. L. (1971) Revision del Genero Gochnatia. Revista del Museo de La Plata. Seccion botanica 12: 1 - 160.
  • Lessing, F. (1832) Synopsis generum Compositarum earumque dispositionis novae tentamen monographs multarum capensium interjectis. Dumckeri et Humblotii, Berolinii (Berlin), 473 pp. http: // dx. doi. org / 10.5962 / bhl. title. 51470
  • Lessing, F. (1830) Synanthereis herbarii Regii Berolinensis, dissertatio tertia. Linnaea 5: 237 - 298.
  • Hiepko, P. (1987) The collections of the Botanical Museum Berlin-Dahlem (B) and their history. Englera 7: 219 - 252.