Results 11 to 20 of about 1,031 (197)

The Cyatheaceae (Polypodiopsida) of Peru [PDF]

open access: yesBrittonia, 2011
A summary is presented of all Peruvian species of scaly tree ferns (Cyatheaceae). A total of 83 species is native to Peru (Sphaeropteris 1 sp., Alsophila sect. Alsophila 9 spp., Alsophila sect. Gymnosphaera 1 sp., Cyathea 72 spp.), with 13 endemic species in Cyathea and one in Alsophila.
Lehnert, Marcus
core   +8 more sources

Flora das cangas da Serra dos Carajás, Pará, Brasil: Cyatheaceae [PDF]

open access: yesRodriguésia
Resumo Este estudo trata os táxons de Cyatheaceae encontrados nas formações ferríferas da Serra dos Carajás, estado do Pará, com descrições, ilustrações, distribuição geográfica e comentários. Na área estudada foi registrada apenas Cyathea pungens.
Alexandre Salino, André Jardim Arruda
doaj   +2 more sources

Pteridófitas da Mata do Estado, município de São Vicente Férrer, estado de Pernambuco, Brasil: Cyatheaceae, Dennstaedtiaceae [PDF]

open access: yesRevista de Biologia Neotropical, 2007
O presente trabalho trata da pteridoflora da Mata do Estado, localizada no município de São Vicente Férrer, Zona da Mata norte do estado de Pernambuco.
Marcio Roberto Pietrobom   +1 more
doaj   +4 more sources

Do you know Cyathea divergens (Cyatheaceae-Polypodiopsida)?  [PDF]

open access: yesPhytotaxa, 2014
The Neotropical scaly tree fern Cyathea divergens is a paradigm of a variable species with a wide geographical range. Studies in herbaria and in the field reveal that C. divergens is less frequently collected and less variable than previously thought.
Marcus Lehnert, Lehnert, Marcus
openaire   +4 more sources

Sobre la presencia y situación de conservación de Cyathea delgadii (Cyatheaceae) en la Argentina [PDF]

open access: yesLilloa, 2014
Krauczuk, Ernesto R.; Héctor A. Keller. 2014. “Sobre la presencia y situación de conservación de Cyathea delgadii (Cyatheaceae) en la Argentina”. Lilloa 51 (2).
Ernesto R. Krauczuk, Héctor A. Keller
doaj   +2 more sources

The scaly tree ferns (Cyatheaceae-Polypodiopsida) of Brazil [PDF]

open access: yesActa Botânica Brasílica, 2016
A synopsis of all scaly tree fern species (Cyatheaceae) occurring in Brazil is presented. We recognize 51 species in three genera [Sphaeropteris one species, Alsophila four species (one subspecies, two varieties), and Cyathea 45 species (one variety ...
Anna Weigand, Marcus Lehnert
doaj   +4 more sources

An exchange of views on the Cyatheaceae [PDF]

open access: yes, 1977
When Dr. R.E. Holttum kindly submitted the following essay review of two papers on Cyatheaceae, a suggestion that Dr. R.M. Tryon be enabled to reply was welcomed by both pteridologists. The editor feels grateful to them for their contribution. First Dr. R.E. Holttum: GASTONY, G.J. Spore morphology in the Cyatheaceae. I.
Holttum, R.E., Tryon, R.M.
openaire   +2 more sources

A molecular phylogeny of scaly tree ferns (Cyatheaceae)

open access: yesAmerican Journal of Botany, 2007
Tree ferns recently were identified as the closest sister group to the hyperdiverse clade of ferns, the polypods. Although most of the 600 species of tree ferns are arborescent, the group encompasses a wide range of morphological variability, from diminutive members to the giant scaly tree ferns, Cyatheaceae.
Harald Schneider   +2 more
exaly   +4 more sources

Criptógamos do Parque Estadual das Fontes do Ipiranga, São Paulo, SP, Brasil. Pteridophyta: 3. Cyatheaceae [PDF]

open access: yesHoehnea
Neste trabalho são apresentados os dados referentes ao levantamento florístico da família Cyatheaceae no Parque Estadual das Fontes do Ipiranga (PEFI). A família está representada na área por dois gêneros (Alsophila e Cyathea) e cinco espécies: Alsophila
Regina Yoshie Hirai, Jefferson Prado
doaj   +2 more sources

Distribution model and prediction of the tree fern Alsophila costularis Baker (Cyatheaceae) in China. [PDF]

open access: yesEcol Evol
We employed an optimized MaxEnt model to evaluate the relative contribution of each bioclimatic variable and predict the suitable habitat for Alsophila costularis Baker under past, current, and future climate scenarios, which is an endangered relict tree fern known as a living fossil.
Wang Z   +7 more
europepmc   +2 more sources

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