Lista anotada das Pteridófitas do Parque Estadual de Vila Velha, Ponta Grossa - PR

Orientador:Paulo Henrique Labiak EvangelistaMonografia (Bacharelado) - Universidade Federal do Paraná. Setor de Ciencias Biológicas. Curso de Graduaçao em Ciencias Biológica

Flora of Viçosa, Minas Gerais State, Brazil: the ancient fern orders Gleicheniales and Osmundales (Polypodiopsida)

ABSTRACT In the Municipality of Viçosa, one family, three genera, and five species of Gleicheniales occur: Dicranopteris flexuosa, Gleichenella pectinata, Sticherus bifidus, S. lanuginosus, and S. nigropaleaceus (Gleicheniaceae). All these species are very common in the area, forming dense thickets (“gleiquenais”) in disturbed areas, and co-occurring in these thickets. Dicranopteris flexuosa, G. pectinata, and S. bifidus are widespread in the Neotropics; Sticherus lanuginosus is widespread in South America and Costa Rica; and S. nigropaleaceous is endemic to the Brazilian Atlantic Forest. We provide nomenclatural corrections for S. lanuginosus. In Osmundales, only one species is found in Viçosa, occurring in marshes: Osmunda palustris (Osmundaceae). The taxonomy of Osmunda is still controversial, with the main Brazilian taxon named as O. palustris, O. regalis, O. regalis subsp. palustris, O. regalis var. spectabilis, O spectabilis, or O. spectabilis var. palustris. In our view, the best name for the taxon occurring in Viçosa is O. palustris, a taxon likely with a Neotropical distribution. Our taxonomic judgment is based on the re-interpretation of recent phylogenetic works, together with populational and morphological studies comparing Brazilian specimens with specimens from the U.S.A. We present descriptions, illustrations, examined specimens, taxonomic comments, and keys to identification

Notes on the distribuition of Thelypteris Amauropelta) glaziovii (H. Christ) C.F. Reed (Thelypteridaceae – Pteridophyta)

Notas sobre a distribuição de Thelypteris (Amauropelta) glaziovii (H. Christ) C.F. Reed (Thelypteridaceae – pteridophyta)Notas sobre a distribuição de Thelypteris (Amauropelta) glaziovii (H. Christ) C.F. Reed (Thelypteridaceae – pteridophyta)</htm

Beware my spines: a new spiny fern (Dennstaedtia, Dennstaedtiaceae) from central and western Amazonia

A new spiny fern belonging to the genus Dennstaedtia is described from Brazilian and Peruvian Amazonia. Dennstaedtia aculeata (sp. nov.) is the third spiny species known for the genus, and the first in South America. It is compared with another Neotropical spiny Dennstaedtia, D. spinosa. We also present images, illustrations and a distribution map of the specimens, and discuss the habitat preference of the species towards nutrient-richer soils and spinescence in the family

A list of land plants of Parque Nacional do Caparaó, Brazil, highlights the presence of sampling gaps within this protected area

Brazilian protected areas are essential for plant conservation in the Atlantic Forest domain, one of the 36 global biodiversity hotspots. A major challenge for improving conservation actions is to know the plant richness, protected by these areas. Online databases offer an accessible way to build plant species lists and to provide relevant information about biodiversity. A list of land plants of “Parque Nacional do Caparaó” (PNC) was previously built using online databases and published on the website "Catálogo de Plantas das Unidades de Conservação do Brasil." Here, we provide and discuss additional information about plant species richness, endemism and conservation in the PNC that could not be included in the List. We documented 1,791 species of land plants as occurring in PNC, of which 63 are cited as threatened (CR, EN or VU) by the Brazilian National Red List, seven as data deficient (DD) and five as priorities for conservation. Fifity-one species were possible new ocurrences for ES and MG states

The genus Hypolepis Bernh.(Dennstaedtiaceae) in South America

Hypolepis Bernh. é um gênero sub-cosmopolita com ca. 80 táxons, e com pouquíssimos estudos taxonômicos. O presente trabalho trata da revisão taxonômica das espécies ocorrentes na América do Sul, incluindo a Ilha de Cocos (Costa Rica). O mesmo se desenvolveu, principalmente, através do estudo morfológico dos tipos nomenclaturais e de exsicatas oriundas de herbários europeus, sul-americanos e de um neo-zeolandês. Algumas espécies também foram estudadas em campo. Para a América do Sul (incl. Cocos) são aqui reconhecidas 27 espécies, e um total de 31 táxons (espécies, subespécies e variedades). Destas, 11 representam novidades nomenclaturais: H. acantha Schwartsb., H. bogotensis var. glabra H. Karst. ex Schwartsb. & J. Prado, H. flexuosa var. zimmerae Schwartsb. & J. Prado, H. galapagensis Schwartsb. & J. Prado, H. Krameri Schwartsb. et al., H. Paulistana Schwartsb. & J. Prado, H. Pedropaloensis Schwartsb. & J. Prado, H. Rugosula subsp. poeppigiana (Mett.) Schwartsb. & J. Prado, H. Rugosula subsp. pradoana Schwartsb., H. Stolonifera var. nebularis Schwartsb., e H. Trinationalis Schwartsb. Grande parte dos táxons foram re-circunscritos, especialmente H. Flexuosa Sodiro var. flexuosa, H. Mitis Kunze ex Kuhn, H. Poeppigii (Kunze) R.A. Rodr., H. Repens (L.) C. Presl, H. Rigescens (Kunze ex Mart.) T. Moore, e H. Stolonifera Fée var. stolonifera. Foram reconhecidos oito padrões biogeográficos para os táxons: \"neotropical\", \"circum-caribenho\", \"circum-amazônico\", \"Monte Roraima\", \"andino\", \"ilhas\", \"sul-brasileiro\", e \"austral\". Altitudes mínimas e máximas parecem ser fortes fatores limitantes de distribuição. O tratamento taxonômico apresenta chaves de identificação, sinonímias, tipificações, descrição dos táxons, mapas de distribuição, ilustrações, material examinado, e comentários taxonômicos e/ou nomenclaturais. Em adição, são apresentadas breves discussões morfológicas, ecológicas, biogeográficas, de conceitos específicos e infra-específicos de alguns táxons, e de grupos informais de espécies; além de pranchas com secções anatômicas de quatro espécies.Hypolepis Bernh. is a sub-cosmopolitan genus with ca. 80 taxa, and with few taxonomic studies. The present work deals with the taxonomic revision of the South American species, including the Cocos Island (Costa Rica). It has been based, mainly, on the morphological study of nomenclatural types and exsiccates from European, South American, and New Zealand herbaria. Some species were also studied in nature. For South America (incl. Cocos Island), 27 species are here recognized, and a total of 31 taxa (species, subspecies, and varieties). Among these, 11 represent nomenclatural novelties: H. acanthi Schwartsb., H. bogotensis var. glabra H. Karst. ex Schwartsb. & J. Prado, H. flexuosa var. zimmerae Schwartsb. & J. Prado, H. galapagensis Schwartsb. & J. Prado, H. Krameri Schwartsb. et al., H. Paulistana Schwartsb. & J. Prado, H. Pedropaloensis Schwartsb. & J. Prado, H. Rugosula subsp. poeppigiana (Mett.) Schwartsb. & J. Prado, H. Rugosula subsp. pradoana Schwartsb., H. Stolonifera var. nebularis Schwartsb., and H. Trinationalis Schwartsb. Most taxa were re-circunscribed, especially H. Flexuosa Sodiro var. flexuosa, H. Mitis Kunze ex Kuhn, H. Poeppigii (Kunze) R.A. Rodr., H. Repens (L.) C. Presl, H. Rigescens (Kunze ex Mart.) T. Moore, and H. Stolonifera Fée var. stolonifera. Eight bio-geographical patterns were recognized: \"Neotropical\", \"circum-Caribbean\", \"circum-Amazonian\", \"Mount Roraima\", \"Andean\", \"islanders\", \"southern Brazilian\", and \"Austral\". Minimum and maximum elevations seem to be strong limiting factors of distribution. The taxonomic treatment presents keys to taxa, synonymies, typifications, taxa description, distribution maps, illustrations, studied material, and taxonomic and/or nomenclatural comments. In addition, it is presented short discussions about morphology, ecology, bio-geography, specific/infra-specific concepts of some taxa, and informal groups of species; also, plates with anatomical sections of four species

Subspecies of Hypolepis rugosula (Dennstaedtiaceae; Pteridophyta) around the world: morphological and biogeographic perspectives

The "Hypolepis rugosula complex" has been the subject of great debate among pteridologists: some have considered H. rugosula a single subcosmopolitan (or circum-Antarctic) species, whereas others have considered it a species-complex, encompassing several species. In the 1920s and 1930s, four geographically distinct varietiesof H. rugosula were recognized. In this work, we present a new taxonomy (with new combinations and statuses, as well as typification and full synonymy), together with complete distribution data for the species, with an infraspecific classification based on morphological and biogeographic perspectives. Hypolepis rugosula occurs in southern temperate regions and high-elevation tropical regions of the Americas, Africa (including Madagascar), Oceania and the Philippines, as well as in some isolated oceanic volcanic islands (e.g., Saint Helena and Tristan da Cunha). Here, 15 geographically distinct subspecies are recognized. All subspecies are geographically segregated from each other, except in New Zealand, where two occur sympatrically-possibly due to two different arrival and colonization times. Four patterns of "indument" (referring to catenate and glandular hairs collectively) are distinguished. Different lineages are successful in their respective habitats; we observed two lineages with different ploidy levels (tetraploid and octoploid). Although long-distance dispersal is the best explanation for the extant distribution of H. rugosula;we do not exclude vicariance as a possible explanation for their occurrence on the land masses that were once united as Gondwana. Therefore, we are assuming that a fern species could remain unchanged for more than 70 Myr, and we are adopting the refugia theory, albeit with a different focus