Taxonomy, distribution and conservation status of the fern genus Cyclodium (Dryopteridaceae)

Abstract

Taxonomy, distribution and conservation status of the fern genus Cyclodium (Dryopteridaceae)

A new species of Mormodes (Orchidaceae: Catasetinae) from southern Amazon, Brazil

“…Due to the increase in deforestation in the Mato Grosso state on the last years in areas of Legal Amazon (INPE 2020), the knowledge gaps in Amazon biome, the lack of funding for collecting projects and longterm storage of the resulting reference collections (Zappi et al 2016), it is likely that its biodiversity is underestimate. This has been demonstrated by the amount of recent studies describing new taxa (e.g., Petini-Benelli and Soares-Lopes 2015; Engels et al 2016;Pellegrini et al 2016;Pessoa et al 2016;Daly 2017;Engels and Canestraro 2017;Labiak et al 2018;Martins et al 2018;Engels et al 2019;Koch et al 2019;Sagella and Calonje 2019;Bohn et al 2020;Silva et al 2020) and showing new distribution records (e.g., Zappi et al 2011;Moura 2016;Zappi et al 2016;Ferneda Rocha and Engels 2017;Engels and Marinho 2018;. Thereby, the description of this new species contributes and expands the floristic knowledge from northern Mato Grosso State, in the south edge of Brazilian Amazon, an area that still below its real richness and diversity.…”

Character evolution of modern eupolypods supports the assignment of the fossil fern Cretacifilix fungiformis to Dryopteridaceae

“…For example, Bolbitis, Cyclodium p.p. Lomagramma, Mickelia, and Pleocnemia differ from Cretacifilix by having veins anastomosing or at least forming a series of narrow costal areoles (Moran et al, 2010;Bohn et al, 2020Bohn et al, , 2021; Lastreopsis, Parapolystichum, Polystichopsis, and Trichoneuron possess axes with abundant pluricellular hairs, whereas the fossils have glabrous axes (Labiak et al, 2014(Labiak et al, , 2015Moran and Labiak, 2015;Liu et al, 2016;Prado and Moran, 2016).…”

“…Other genera within this family have morphological features different from the fossil, e.g., blade axes not grooved in Megalastrum (Moran et al, 2009;Labiak et al, 2014); blades covered with ctenitoid hairs in Ctenitis, Pleocnemia, and Dryopteris p.p. (Holttum, 1974(Holttum, , 1983(Holttum, , 1985Zhang et al, 2013b); fertile leaves with strongly reduced laminae in Maxonia (Moran and Labiak, 2015); dimorphic leaves with acrostichoid sporangia in fertile leaves in Bolbitis, Elaphoglossum, and Mickelia (Moran et al, 2010); round sori frequently confluent and covering the segment beneath in Olfersia, Polybotrya, Arthrobotrya, and Teratophyllum (Kramer et al, 1990a;Labiak et al, 2014;Moran and Labiak, 2015); indusia generally peltate in Cyclodium p.p., Cyrtomium, Phanerophlebia, Polystichum, and Rumohra (Kramer et al, 1990a;Bohn et al, 2020Bohn et al, , 2021; or exindusiate sori in Stigmatopteris (Moran and Labiak, 2016).…”

Ferns of Viçosa, Minas Gerais, Brazil: Didymochlaenaceae and Dryopteridaceae

“…The first contributions to the knowledge of this family in the country were given by Raddi (1819), Presl (1822), Schrader (1824), Martius (1828Martius ( -1834, Fée (1869Fée ( , 1873, Baker (1870), and Christensen (1913Christensen ( , 1920. More recently, there were the contributions by Brade (1961Brade ( , 1972, Sundue et al (2013), Prado et al (2014), Canestraro & Labiak (2015), Engels & Canestraro (2017), Schwartsburd et al (2018), Bohn et al (2020), and -in addition to the monographs already mentioned in the previous paragraph and some regional floras (e.g., Brade 1946;Sehnem 1979;Salino & Carvalho 2005;Garcia & Salino 2008;Prado et al 2017). Garcia & Salino (2008) studied the species of Dryopteridaceae from Minas Gerais but adopted a different circumscription for the family (i.e., that of Moran & Riba 1995, which included Didymochlaena, but excluded Bolbitis, Ctenitis, Elaphoglossum, Lastreopsis, Megalastrum, Mickelia, and Parapolystichum).…”