Results 61 to 70 of about 833 (187)
Data Capture and Taxonomic Determination of Cycadales at the Royal Botanic Garden Edinburgh [PDF]
, 2010 This paper discusses a curatorial review of the Cycadales in the Living Collection at the Royal Botanic Garden Edinburgh (RBGE) following the methodology described by Frachon et al. (2009).
Clugston, James
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Plant Species Biology, Volume 40, Issue 4, Page 354-365, July 2025.The sex ratio of the endemic gymnosperm Cycas panzhihuaensis is determined by the potential sex‐determining gene MADS‐Y. The study examined the sex dimorphism and spatial distribution of male and female individuals. The genotypic sex ratio of the C. panzhihuaensis population is balanced. Additionally, there is a significant clustering effect in spatial
Yong‐Qiong Yang +8 more
wiley +1 more source
A new cycad stem from the Cretaceous in Argentina and its phylogenetic relationships with other Cycadales [PDF]
, 2019 The cycads are an ancient group of seed plants. Fossil stems assigned to the Cycadales are, however, rare and few descriptions of them exist. Here, a new genus of cycad stem, Wintucycas gen. nov., is described on the basis of specimens found in the Allen
Artabe, Analía Emilia Eva +2 more
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Chemical Element Concentrations of Cycad Leaves: Do We Know Enough?
Horticulturae, 2020 The literature containing which chemical elements are found in cycad leaves was reviewed to determine the range in values of concentrations reported for essential and beneficial elements.
Benjamin E. Deloso +5 more
doaj +1 more source
Paleogén flóra- és klímaváltozások = Floral and climatic development of the Paleogene [PDF]
, 2007 Vizsgálatainkkal arra kívántunk választ adni, hogy - a Belső Kárpáti Térség érintett eocén-oligocén flóra-spektruma alapján kimutatható-e florisztikai és klímaváltozás, és milyen minőségűek ezek a változások.
Erdei, Boglárka, Hably, Lilla
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Propagation of Cycad Collections from Seed [PDF]
, 2011 Propagation of cycads from seed can aid their conservation as it helps reduce the demand for wildcollected plants. Seed-produced plants can be used for reintroduction programmes if the parent plants are from known provenance and care is taken to avoid ...
Calonje, Michael +2 more
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Ecological Research, Volume 39, Issue 2, Page 131-158, March 2024.Cycads represent an example of the success of evolutionary stasis. Despite its conservative nature, the cycad genus Dioon has been able to diversify due to phylogenetic, stochastic, and environmental factors associated with the biogeography of Mexico. Abstract Cycads represent an example of the success of evolutionary stasis. Despite their early origin,
José Said Gutiérrez‐Ortega +8 more
wiley +1 more source
Revista de Biología Tropical, 2003 There are few genera of butterflies that feed on cycads. Among them the genus Eumaeus (Lycaenidae) presents aposematic coloration in all its life stages.
Raúl Contreras-Medina +2 more
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Cycads from the Triassic of Antarctica: Permineralized Cycad Leaves [PDF]
, 2015 Permineralized cycad petioles and/or rachides with associated pinnae are described from two Triassic localities in the Queen Alexandria Range, central Transantarctic Mountains, Antarctica.
Hermsen, Elizabeth +3 more
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Reasons of leaves withering in tropical plants cultivated under greenhouse conditions
Acta Agrobotanica, 2013 In order to determine the reasons of necrosis of exotic plants leaves cultivated in greenhouses plants belonging to ten following species were examined: Ceratozamia mexicana Brongn., Stangeria eriopus (Kunze) Nash (Cycadaceae), Eriobotrya japonica Lindl.
Z. Czerwiński +3 more
doaj +1 more source