Results 11 to 20 of about 1,178 (187)
Flora del Bajío y de regiones adyacentes (En línea), 2015 La familia está constituida por cinco géneros y aproximadamente 600 especies. Las Cyatheaceae se consideran relacionadas con Lophosoriaceae, Dicksoniaceae y Thelypteridaceae. Se distribuye en América caliente y en el paleotrópico. En México se encuentran tres géneros, Alsophila, Cyathea y Sphaeropteris, de los cuales uno está representado en la zona de
Grajales-Tam, Karina Magdalena ; Instituto de Ecología, A.C., Centro Regional del Bajío, Pátzcuaro, Michoacán.
exaly +3 more sources
Flora das cangas da Serra dos Carajás, Pará, Brasil: Cyatheaceae
RodriguésiaResumo 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
The scaly tree ferns (Cyatheaceae-Polypodiopsida) of Brazil [PDF]
Acta 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
Sobre la presencia y situación de conservación de Cyathea delgadii (Cyatheaceae) en la Argentina [PDF]
Lilloa, 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
Revista 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 +2 more sources
A molecular phylogeny of scaly tree ferns (Cyatheaceae)†
American 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
An exchange of views on the Cyatheaceae
, 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
Systematics of Peninsular Malaysian Scaly Tree Ferns (Cyatheaceae): phylogenetics, computer-aided identification and conservation [PDF]
The work presented in this thesis evaluates the status of Peninsular Malaysian Cyatheaceae and used molecular and morphological identification tools for the local species.
Jamaludin, Azi Azeyanty
core +9 more sources
Genomics is modifying our concepts of evolution in homosporous and heterosporous vascular plants. [PDF]
Am J BotAbstract Across the tree of life, and particularly within land plants, there is a wide diversity and disparity of genome structure. The most well‐studied are angiosperms, comprising mostly small and dynamic genomes, with a history of ancient whole genome duplications.
Kinosian SP.
europepmc +2 more sources
Application of a novel schema for describing fossil fern foliage and investigating taxonomic and morphological change across the Cretaceous-Paleogene boundary in western North America. [PDF]
Am J BotAbstract Premise The Chicxulub asteroid impact at the Cretaceous–Paleogene (K–Pg) boundary triggered a mass extinction 66 million years ago. Ferns thrived in the aftermath of the extinction, evidenced by the well‐documented “fern spore spike.” However, fern macrofossil records across the K–Pg boundary are less understood.
Holian FB +9 more
europepmc +2 more sources