Results 91 to 100 of about 8,311 (229)

Missouri Botanical Garden's cycad collection: A journey through time

open access: yesPlant Species Biology, Volume 40, Issue 6, Page 607-624, November 2025.
This article summarizes the history of the Missouri Botanical Garden's extensive cycad collection. Some of the specimens currently housed in the living collections date back well over 100 years. Cycads continue to face a myriad of threats in the wild, and their conservation in ex situ collections is of critical importance to assist in their survival ...
Benjamin E. Deloso   +3 more
wiley   +1 more source

Introduction à la végétation, à la flore et aux noms vernaculaires de l'île de Pentecôte (Vanuatu) [PDF]

open access: yes, 1983
The authors bring here all the constituents of an ethnobotanical and ethnolinguistic study of the native and introduced plants of Pentecost Island (Vanuatu).Les auteurs apportent ici tous les éléments d'une étude ethnobotanique et ethnolin- guistique des
Cabalion, Pierre, Morat, Philippe
core   +1 more source

Analysis of the extranucleolar ribonucleoprotein particles of Cycas revoluta Thunb. (Cycadaceae) and Ceratozamia mexicana Brongn. (Zamiaceae)

open access: yesBotan‪ical Sciences, 2022
Background: Nuclear ribonucleoprotein particles play a key role in RNA processing and in the gene expression pathway. Interchromatin granules (GICs) involved in the metabolism of pre-messenger RNA (pre-mRNA) were described in Allium cepa and ...
Lourdes-Teresa Agredano-Moreno   +3 more
doaj   +1 more source

Spatial distribution pattern of the endangered endemic cycad Ceratozamia fuscoviridis (Zamiaceae) in central Mexico

open access: yesPlant Species Biology, Volume 40, Issue 6, Page 572-583, November 2025.
Spatial distribution pattern were studied for Ceratozamia fuscoviridis, an endangered species in Mexico, based on Ripley's K t and K 12 analysis. Clumped spatial distribution patters was found in individuals of all populations, suggesting low interaction with predators/dispersers and/or evidence of suitable microsites for cycads.
María Teresa Pulido Silva   +4 more
wiley   +1 more source

Population Differentiation and Demographic History of the Cycas taiwaniana Complex (Cycadaceae) Endemic to South China as Indicated by DNA Sequences and Microsatellite Markers

open access: yesFrontiers in Genetics, 2019
Historical geology, climatic oscillations, and seed dispersal capabilities are thought to influence the population dynamics and genetics of plants, especially for distribution-restricted and threatened species.
Xin-Hui Wang   +7 more
doaj   +1 more source

Fresh and Dry Weight Relations Are Predictors of Cycas micronesica Seed Age

open access: yesHorticulturae, 2020
Cycas micronesica is a foundation species in several Micronesian islands and its seeds have been a historical source of starch for the island residents.
Thomas E. Marler, Christopher A. Shaw
doaj   +1 more source

Progress in the study of dioecy in Mexican cycad species and its implications for conservation

open access: yesPlant Species Biology, Volume 40, Issue 6, Page 556-571, November 2025.
Cycads are endangered dioecious plants of great ornamental value that have a long period of sexual maturity. Therefore, it is crucial to have methods for early sex determination that can help to develop effective strategies for their conservation. Abstract Dioecy is a system of sexual reproduction in plants, characterized by the spatial separation of ...
Lourdes Georgina Iglesias Andreu   +2 more
wiley   +1 more source

A new classification and linear sequence of extant gymnosperms [PDF]

open access: yes, 2011
A new classification and linear sequence of the gymnosperms based on previous molecular and morphological phylogenetic and other studies is presented.
Chase, Mark W.   +5 more
core   +2 more sources

Preface of Special Feature “Current topics on cycad biology: Deciphering the Rosetta Stone of plant evolution.” Part II: Perspectives from natural history

open access: yesPlant Species Biology, Volume 40, Issue 6, Page 527-529, November 2025.
Often regarded as “living fossils,” cycads are well known for retaining many ancestral traits, which makes them particularly fascinating to naturalists and scientists alike. Cycads provide insights into the functional and developmental processes underlying the origin and diversification of seed plants, and they may help clarify how they colonized the ...
José Said Gutiérrez‐Ortega
wiley   +1 more source

Fire Histories and Rainforest Aboriginal Archaeology in the Wet Tropics Bioregion, North Queensland

open access: yesArchaeology in Oceania, Volume 60, Issue 3, Page 234-269, October 2025.
ABSTRACT Unlike the dominant Australian savanna‐sclerophyll vegetation, tropical rainforests do not burn easily. Any evidence of fire in Australian rainforests therefore invites explanations of its source. Analysis of 187 radiocarbon dates that include selected charcoal fragments from 23 soil pits and 7 archaeological sites from the Wet Tropics ...
Richard Cosgrove   +9 more
wiley   +1 more source

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