Meniscium maxonianum (A.R.Sm.) R.S.Fernandes & Salino

Fernandes, Rozijane Santos, Yesilyurt, Jovita Cislinski & Salino, Alexandre, 2014, New species and combinations in Meniscium (Thelypteridaceae), Phytotaxa 184 (1), pp. 1-11 : 9

Meniscium maxonianum (A.R.Sm.) R.S.Fernandes & Salino , comb. nov.

Thelypteris maxoniana Smith (1992: 72) . Type :— PERU. Maynas : Quistococha, vicinity of Iquitos, 18 Nov 1977, A. Gentry 20751 (holotype MO, isotype UC).

Dryopteris desvauxii f. glandulosa Maxon & Morton (1938: 372) , Thelypteris longifolia f. glandulosa ( Maxon & Morton 1938: 372) Morton (1967: 52) . Type:— BRASIL. São Paulo: Morro das Pedras, A.C. Brade 5753 (holotype NY).

Selected specimens examined: — COLOMBIA. Comisaría Del Caquetá: Florencia , 400 m, 29 March 1940, J . Cuatrecasas 8855 ( US) .— VENEZUELA. Aragua: Tovar , A . Fendler 232 ( K). Bolivar: Raul Leoni , 06°34’N, 66°23’W, 800 m, June 1989, A. Fernandez 5637 ( MO) .— PERU. Loreto: Mishuyacu , 100 m, April 1930, G . Klung 1255 ( F, NY) .— BRAZIL. Distrito Federal : Parque Municipal do Gama , 700–1000 m, 3 September 1964, H. S . Irwin & T. R . Soderstrom 5880 ( F, K, NY); Goiás: A . Glaziou 22632 ( F, P, US). Mato Grosso: Serra do Roncador , 550 m, H. S . Irwin et al. 16304 ( F); Paraná: Paranaguá, Ilha do Mel , 25°30’44’’S, 48°19’08’’W, 3 m, 15 February 2004, P. H . Labiak et al. 3133 ( UPCB). Pará: Parauapebas, 06°06’06’’S, 50°11’07’’W, 720 m, 20 April 2012, A. J . Arruda et al. 963 ( BHCB). Santa Catarina: Brusque, 27°06’03’’S, 48°53’48’’W, 112 m, 05 June 2009, A. L . Gasper & E . Brogni 2173 ( FURB) .— BOLIVIA. 22 September 1901, R. S . Williams 1281 ( NY, US) .

Distribution and habitat:— Meniscium maxonianum is distributed in Venezuela, Colombia, Peru to Bolivia and Brazil. It grows in forest formations of Amazonian forest, Atlantic rain forest, and Cerrado domains, where it can grow in shaded and sunny areas at 1– 720 m.

Notes:— The most notable character of M. maxonianum is the dense cover of sessile to stalked glands on the abaxial surface of the laminae, and having the sporangial stalks glabrous or with inconspicuous filamentous, septate structures. In these characters it differs from the similar M. longifolium , which shares the same shape of lamina and pinnae, but is characterized by having glands and trichomes (sometimes only trichomes) on the abaxial surface of the lamina and sporangial stalks with long, acicular trichomes. Another species that also has glandular trichomes on the abaxial surface of the lamina is M. falcatum Liebmann (1849: 183) . However, it differs from M. maxonianum by having longer pinna stalks and acicular and erect trichomes on the costae.