Results 31 to 40 of about 3,314 (193)

In vitro spore germination and gametophyte development of two Cyathea species of South America in response to nutrient media

Rodriguésia, 2023
Cyathea corcovadensis and Cyathea phalerata are tree ferns native to Brazil, endangered in the state of Rio Grande do Sul. Spore germination and gametophyte development in media with different nutrient formulations and activated charcoal were evaluated ...
Catiuscia Marcon, Verônica Kern de Lemos, Isabela Kirch Stein, Annette Droste   +3 more
doaj   +1 more source

Apogamy in the Cyatheaceae [PDF]

Botanical Gazette, 1918
Since the discovery of apogamy in Pteris cretica by FARLOW (3) in I874, it has been observed in about I5 genera and 30 species of the Polypodiaceae. There are records of its occurrence in 3 other families of the Filicales, namely, the Osmundaceae, the Hymenophyllaceae, and the Marsiliaceae.
openaire   +1 more source

Burmese amber fossils bridge the gap in the Cretaceous record of polypod ferns [PDF]

, 2016
publisher: Elsevier articletitle: Burmese amber fossils bridge the gap in the Cretaceous record of polypod ferns journaltitle: Perspectives in Plant Ecology, Evolution and Systematics articlelink: http://dx.doi.org/10.1016/j.ppees.2016.01.003 ...
Alexander R. Schmidt, Barden, Bell, Benton, Benton, Cardinal, Caspary, Christenhusz, Coiffard, Collinson, Collinson, Cruickshank, Darriba, Drummond, Feldberg, Goeppert, Grimaldi, Guindon, Gómez, Harald Schneider, Hasebe, Hedenäs, Heinrichs, Heinrichs, Heinrichs, Heinrichs, Hu, Jochen Heinrichs, Kramer, Kvaček, Lehtonen, Lehtonen, Lloyd, Lovis, Lóriga, Maddison, Magallón, Magallón, Mays, Mendes, Meredith, Mohr, Nagalingum, Nagalingum, Parham, Poinar, Poinar, Pérez-de la Fuente, Rambaut, Rambaut, Ren, Rothwell, Schmidt, Schmidt, Schneider, Schneider, Schneider, Schneider, Schneider, Schuettpelz, Schuettpelz, Shi, Skog, Smith, Smith, Smith, Smith, Smith, Tidwell, Tryon, van Konijnenburg-van Cittert, Vera, Vermeij, Villarreal, Wing, Zeng   +75 more
core   +1 more source

Wood density variation across an Andes‐to‐Amazon elevational gradient

Journal of Ecology, Volume 113, Issue 9, Page 2370-2385, September 2025.
We study how wood density varies along a 3500‐m elevational gradient, spanning from the Andean tree line to the Amazon basin. Our results reveal that wood density decreases from low to mid‐elevations, then increases toward the tree line. These patterns underscore the influence of species composition, life forms such as tree ferns, and local ...
William Farfan‐Rios, Sassan Saatchi, Imma Oliveras Menor, Yadvinder Malhi, Chelsea M. Robinson, Oliver L. Phillips, Alex Nina‐Quispe, Juan A. Gibaja, Israel Cuba, Karina Garcia‐Cabrera, Norma Salinas, John Terborgh, Nigel Pitman, Rodolfo Vasquez, Abel Monteagudo Mendoza, Percy Nunez Vargas, Craig A. Layman, Miles R. Silman   +17 more
wiley   +1 more source

SEM Studies on Vessels in Ferns. 18. Montane Cheilanthoid Ferns (Pteridaceae) of North America [PDF]

, 2000
Xylem of roots and rhizomes of five species of four genera of tribe Cheilantheae (Pteridaceae; recently recognized by some as a segregate family, Cheilanthaceae) has been studied by means of scanning electron microscopy (SEM).
Carlquist, Sherwin, Schneider, Edward L.
core   +3 more sources

Consensus classifications are crucial for conservation: How CITES utilizes checklists

TAXON, Volume 74, Issue 4, Page 759-767, August 2025.
Abstract The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) is an end‐user of the consensus classifications and checklists produced by global initiatives such as the World Flora Online (WFO). This paper provides a brief background on CITES and the impact of classification and nomenclature changes on the CITES ...
Ronell R. Klopper
wiley   +1 more source

Hidden in the Andes: new insights into the distribution of Magnolia guatapensis (Lozano) Govaerts (Magnoliaceae) and Cyathea antioquensis A. Rojas (Cyatheaceae) [PDF]

Check List
Magnolia guatapensis (Lozano) Govaerts (Magnoliaceae) and Cyathea antioquensis A. Rojas (Cyatheaceae) are endangered species endemic to Antioquia region (Colombia). This study reports new pop‑ ulations of M. guatapensis and C. antioquensis from
Andrés Montoya-López
doaj   +3 more sources

The scaly tree ferns (Cyatheaceae-Polypodiopsida) of Brazil

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   +1 more source

Moss and liverwort epiphytes on trunks of Cyathea delgadii in a fragment of tropical rain forest, São Paulo State, Brazil [PDF]

, 2006
This study is a survey of the bryophyte species that occur on the trunks of Cyathea delgadii Sternb. (Cyatheaceae), a native tree fern, encountered in a fragment of Atlantic forest located in the area of the „Parque Estadual das Fontes do Ipiranga (PEFI)“
Prado, Jefferson, Vital, Daniel M.
core  

Marcescence and prostrate growth in tree ferns are adaptations to cold tolerance

Ecography, Volume 2025, Issue 6, June 2025.
Cold tolerance strategies in plants vary from structural to biochemical permitting many plants to survive and grow on sites that experience freezing conditions intermittently. Although tree ferns occur predominantly across the tropics, they also occur in temperate zones and occasionally in areas that experience sub‐zero temperatures, and how these ...
James M. R. Brock, André M. Bellvé, Bruce R. Burns   +2 more
wiley   +1 more source