Results 81 to 90 of about 60,418 (311)

Reversibility of sex changes in the plant kingdom: more important than we thought?

open access: yesBiological Reviews, EarlyView.
ABSTRACT Compared to animals, plants show a wide range of reproductive strategies with different degrees of sex separation (e.g. dioecy, monoecy, hermaphroditism). While sex expression was previously thought to be genetically determined and fixed in plants, accumulating evidence suggests that sex expression can change reversibly even within one ...
Iris Sammarco   +3 more
wiley   +1 more source

A phylogenetic analysis of the Orchidaceae

open access: yesSmithsonian Contributions to Botany, 1986
NH-Botany ; NMNH ; SISP ; Peer ...
Pamela Burns-Balogh, V. A. Funk
openaire   +3 more sources

Endocarpic trichomes in Vandeae (Orchidaceae)

open access: yesFlora, 2021
Endocarpic trichomes have been analyzed in fruits of 267 species from 80 genera of the orchid tribe Vandeae, using light and scanning electron microscopy. They have been observed for the first time in 56 genera and confirmed in the rest. The present study describes their microstructure in Vandeae and suggests a standardization for its terminology ...
Gamarra Gamarra, Roberto   +1 more
openaire   +3 more sources

Quantitative Phytochemical Analysis on Leaf Extract of Calanthe masuca (D.Don) Lindl., an Endangered Medicinal Plant (Orchidaceae) [PDF]

open access: yesJournal of Stress Physiology & Biochemistry, 2023
Calanthe masuca (D.Don) Lindl plant leaves have medicinal properties. It is an endangered and terrestrial orchid. They are distributed in evergreen forest; plant collection is very difficult for researches. That’s why very rare because of group of plants
Duraisamy Kavitha   +1 more
doaj  

Predicting evolution in response to climate change: the example of sprouting probability in three dormancy-prone orchid species [PDF]

open access: yesRoyal Society Open Science, 2017
Although many ecological properties of species respond to climate change, their evolutionary responses are poorly understood. Here, we use data from long-term demographic studies to predict evolutionary responses of three herbaceous perennial orchid ...
Richard P. Shefferson   +2 more
doaj   +1 more source

Orquideas del Parque Estatal de Serra do Tabuleiro, S de Brasil [PDF]

open access: yes, 2015
Orchidaceae show a high diversity of species in Brazil, especially in the Atlantic Forest Biome. Over the course of a 12-month study in the State Park of Serra do Tabuleiro in Southern Brazil, collections were made of orchids occurring in areas of ...
Crespo Villalba, Manuel Benito   +3 more
core   +4 more sources

Pollination and plant reproduction in the Cerrado, the world's most biodiverse savanna

open access: yesBiological Reviews, EarlyView.
ABSTRACT The Brazilian Cerrado is a continental‐wide biodiversity hotspot and the most species‐rich savanna ecosystem in the world. The main aspect characterising this biodiversity is that the landscape is arranged as an intricate mosaic of different plant formations, including grasslands, savannas, and forests, each harbouring distinct but ...
João C. F. Cardoso   +6 more
wiley   +1 more source

The role of pollinator attracting scent in the sexually deceptive orchids Ophrys chestermanii, O. normanii and O. tenthredinifera [PDF]

open access: yes, 2008
Sexual deception of male bees is one of the most remarkable mechanisms of pollination (Ackermann 1986, Proctor & al. 1996). Flowers of the orchid genus Ophrys mimic females of their pollinator species, usually bees and wasps, to attract males, which try ...
Ayasse, Manfred   +9 more
core  

Beyond Deception: What Else Do Flower Wasps (Hymenoptera: Thynnidae: Thynninae) Do in Flowers Worldwide?

open access: yesJournal of Applied Entomology, EarlyView.
ABSTRACT Wasps, although less recognised as good pollinators, also feed on nectar and pollinate flowers. Specialised pollination systems, such as orchids that mimic the pheromones of female wasps to attract males, are complex and specific. This interaction occurs with some Thyninnae wasps that also visit flowers to obtain nectar and perform other ...
Leidy Kelly Guimarães Cunha   +4 more
wiley   +1 more source

The unique mouse pollination in an orchid species [PDF]

open access: yes, 2008
The Chinese orchid, _Cymbidium serratum_, is pollinated by the wild mountain mouse _Rattus fulvescens_. The flowers use both odor and colour as attractants, and provide labellum as food reward for the pollinators.
Li Dong   +3 more
core   +1 more source

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