Vernonanthura polyanthes (Sprengel) Vega & Dematteis, 2010

Vega, Alvaro José & Dematteis, Massimiliano, 2010, The transfer of Vernonia perangusta to the genus Vernonanthura (Vernonieae, Asteraceae) and the correct name for Vernonanthura phosphorica, Phytotaxa 8, pp. 46-50 : 47

Vernonanthura polyanthes (Sprengel) Vega & Dematteis , comb. nov. ( Fig. 1 )

Basionym: Eupatorium polyanthes Sprengel (1826: 414) ; Vernonia polyanthes (Spreng.) Lessing (1931: 651) . Cacalia polyanthes (Spreng.) Kuntze (1891: 971) . Lectotype (designed here): BRAZIL. Rio de Janeiro: Estrella, Serra do Mar, fl, fr, P. W. Lund s. n. (holotype G-DC!).

Chysocoma phosphorica Vellozo (1825 [1829]: 325); Vernonanthura phosphorica (Vell.) Robinson (1992: 73) . Type: Icones 8, táb. 4 (Illustration).

Vernonia corcovadensis Gardner (1846: 218) . Type: BRAZIL. Rio de Janeiro: woods on the Corcovado , July 1837, G. Gardner 788 (holotype BM!, isotypes K!, P!, W!) .

Erect shrub up to 3 m tall. Stems striate, tomentose. Leaves petiolate, petioles 0.5–1.5 mm long. Leaf blades lanceolate, 5–15 cm long by 1–3 cm wide, margin entire, acute at apex, attenuate basally, laxly pilose above, tomentose beneath. Capitula sessile or subsessile, on seriate-cymose branches, grouped in a paniculiform synflorescence. Involucre campanulate, 4–5 mm high. Phyllaries in 4–6 series, mucronate, pilose or rarely glabrous, inner phyllaries lanceolate, outer ones ovate. Florets white. Corollas 5–5.5 mm long, lobes lanceolate, 1.5–2 mm long. Anthers 2–3 mm long. Styles 6–7 mm long, branches linear, 2 mm long. Cypselas ribbed, covered with single hairs and glandular papillae. Pappus uniseriate, 4–5 mm long. Pollen grains (after acetolysis) radially symmetrical, isopolar, oblate-spheroidal to prolate-spheroidal, polar axis 39.44–44.88 µm, equatorial diameter 40.08–44.88 µ m, subechinolophate, 3-colporate, tectum continuous, densely microperforate, spines 3.80–5.44 µm long.

Vernacular names:—“assa peixe”, “assa peixe branco” ( Brazil).

Additional specimens examined:— BOLIVIA. Beni: Prov. Ballivian, Carmen Florida, October 1989, D. E . Williams 1051 ( CTES) . BRAZIL. Bahía: Jacobina, Moritiba, 1842 , J. S . Blanchet 3691 ( G, W); Mun. Lençois , BR 242 , 4 km do entroncamento a Lençois em direção a Seabra, 22 August 1996, R. M . Harley & M. A . Maycoorm 3768 ( CEPEC); Utinga, ca. 8 km na estrada Utinga-Bonito , Alt. 713 m, 10 September 1999, R. P . Oliveira, M. M . Silva, N. K. R . Souza & D. B . Araujo 213 ( ALCB). Minas Gerais: near Conceição, August 1840, G . Gardner 4774 ( BM); Juiz de Fora , 14 July 1983, L . Krieger 19887 ( CESJ); Diamantina, Barão , base of Serra de Capão , 21 May 1931, Y . Mexia 5898 ( G); Grão Mogol , 28 June 1981, S. M . Pereira 3211 ( BHCB); Sanata Rita de Jacutinga , 28 July 1970, L . Krieger 8942 ( CESJ); Parque Estadual Ibitipoca , 6 July 1999, M. A . Manhães 23 ( CESJ); Rio Acima , 28 June 1988, C. V . Mendonça 13 ( BHCB); Viçosa Agricultural College lands, 22 July 1930, Y . Mexia 4891 ( G); Entre Rios de Minas , Pedra Branca, 19 Fabruary 1992, L. Krieger s.n. ( CESJ). Paraná: Mun. Cerro Azul, Cabeceiras do Ribeirão do Tigre , 18 July 1984, G. Hatschbach 48092 ( MBM); Ponta Grossa , in silvula, 25 April 1910, P . Dusén 9909 ( G); Mun. Jundaí do Sul , Fazenda Monte Verde, 30 July 1998, J . Carneiro 551 ( MBM); Mun. Matinhos, Caiobá, Morro do Boi , 12 April 1999, J . Carneiro 635 ( MBM). Rio de Janeiro: Rio de Janeiro, Monerat, 14 September 1951, P . Capell s.n. ( BC, Nº 119131); Rio de Janeiro, July 1834, P. W . Lund 461 (G-DC); Nova Friburgo, laderas de los bosques, March 1953, P . Capell s.n. ( BC Nº 127142); Serra do Itatiaia , 1800 m, March 1894, E . Ule 3383 ( CORD). São Paulo: nativa no parque do estado, May 1932, F. C . Hoehne 29675 ( MVFA); Mun. Campinas , Chácara Atibaia, km 14 rodovia Campinas-Moji-Mirim, September 1968, H. F . Leitão Filho 515 ( CTES) .

Figures

FIGURE 1. Pollen grains of Vernonanthura polyanthes. A. Equatorial view. B. Spine detail. A–B. Hatschbach 48092 (CTES). Scale bar = 10 µm.