Results 21 to 30 of about 2,377,962 (255)

Boosted Random ferns for object detection [PDF]

open access: yes, 2018
© 20xx IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new ...
Andrade-Cetto, Juan   +3 more
core   +2 more sources

Gametophyte niche differences among sympatric tree ferns [PDF]

open access: yesBiology Letters, 2019
Forest community assembly is usually framed in terms of sporophyte dynamics; however, the recruitment and maintenance of fern populations, frequently influential in forest composition and structure, are initially determined by gametophytes.
James M. R. Brock   +3 more
openaire   +2 more sources

Incorporating fossils into the joint inference of phylogeny and biogeography of the tree fern order Cyatheales.

open access: yesEvolution; international journal of organic evolution
Present-day geographic and phylogenetic patterns often reflect the geological and climatic history of the planet. Neontological distribution data is often sufficient to unravel a lineage's biogeographic history, yet ancestral range inferences can be at ...
S. Ramírez-Barahona
semanticscholar   +1 more source

Characterization of the complete chloroplast genome of Alsophila gigantea (Cyatheaceae), an ornamental and CITES giant tree fern

open access: yesMitochondrial DNA Part B: Resources, 2019
We characterized the complete chloroplast genome of Alsophila gigantea (Cyatheaceae), an ornamental and CITES giant tree fern. Its genome size is 161,679 bp in length, containing a large single copy (LSC) of 92,315 bp and a small single copy (SSC) of 21 ...
Ting Wang   +3 more
semanticscholar   +1 more source

Effect of TIBA, fluridone and salicylic acid on somatic embryogenesis and endogenous hormone and sugar contents in the tree fern Cyathea delgadii Sternb.

open access: yesActa Physiologiae Plantarum, 2017
Somatic embryogenesis (SE) in the tree fern Cyathea delgadii was first described in 2015 and since then has been used to exploration of this phenomenon in cryptogamic plants.
M. Grzyb, A. Kalandyk, A. Mikuła
semanticscholar   +1 more source

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

open access: yes, 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  

Shaped by context: Evolutionary trajectories of desiccation tolerance in land plants

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Desiccation tolerance (DT), the ability to survive near‐complete cellular dehydration, is widespread in diaspores but rare in the vegetative tissues of land plants. The patchy and punctuated phylogenetic distribution of vegetative desiccation tolerance (VDT) suggests that the trait is both ancient and recurrent, yet the evolutionary ...
Rose A. Marks   +2 more
wiley   +1 more source

El cultivo in vitro de esporas y los aspectos reproductivos del helecho anual Anogramma chaerophylla (Pteridaceae) [PDF]

open access: yes, 2016
Anogramma chaerophylla pertenece a un género de helechos con esporofitos anuales y gametofitos potencialmente perennes. En el área de estudio, la Reserva Natural Punta Lara, la vegetación crece bajo estrés debido principalmente a la contaminación y la ...
Berrueta, Pedro Cayetano   +5 more
core   +3 more sources

A perspective from the Mesozoic: Evolutionary changes of the mammalian skull and their influence on feeding efficiency and high‐frequency hearing

open access: yesThe Anatomical Record, EarlyView.
Abstract The complex evolutionary history behind modern mammalian chewing performance and hearing function is a result of several changes in the entire skeletomuscular system of the skull and lower jaw. Lately, exciting multifunctional 3D analytical methods and kinematic simulations of feeding functions in both modern and fossil mammals and their ...
Julia A. Schultz
wiley   +1 more source

Sphaeropteris cooperi: Australian Tree Fern

open access: yesEDIS, 2007
The Australian tree fern (Sphaeropteris cooperi) is a tropical, single-trunked fern native to eastern Australia, growing 15-30 feet tall. It has finely textured, lacy, bipinnately compound leaves and thrives in USDA zones 10B-11, in well-drained, sandy loam soils with partial to full shade. It requires regular moisture and light fertilization.
openaire   +3 more sources

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