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Austral Ecology, 2020 Most cycads have intimate associations with their insect pollinators that parallel those of well-known flowering plants, such as sexually deceptive orchids and the male wasps and bees they deceive. Despite this, the mistaken belief that cycads are mostly
Alicia Toon, Lyn G. Cook, Gimme Walter
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2022
The cycads are a group of relict Mesozoic plants of which 10 genera now exist in the mainly tropical to warm temperate regions of the world. An additional toxicity which affects cattle after weeks of consumption of cycad leaves is a posterior ataxia known locally as “zamia staggers”. A toxin responsible for this condition has not so far been discovered.
Seawright, Alan A. +3 more
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The cycads are a group of relict Mesozoic plants of which 10 genera now exist in the mainly tropical to warm temperate regions of the world. An additional toxicity which affects cattle after weeks of consumption of cycad leaves is a posterior ataxia known locally as “zamia staggers”. A toxin responsible for this condition has not so far been discovered.
Seawright, Alan A. +3 more
openaire +2 more sources
First Cycad Seedling Foliage From the Fossil Record and Inferences for the Cenozoic Evolution of Cycads [PDF]
Biology Letters, 2019 The morphology of the early ontogenetic stages of cycad foliage may help resolve the relationships between extinct to extant cycad lineages. However, prior to this study, fossil evidence of cycad seedlings was not known. We describe a compression fossil
Boglarka Erdei +2 more
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Taxonomy and Conservation of Philippine Cycads
Blumea: Journal of Plant Taxonomy and Plant Geography, 2009 Six species of cycads are recorded in the Philippines, three of which are endemic. The different species of cycads can be recognized by the characters of the microsporophylls, megasporophylls, and seeds.
Madulid, Domingo A. +1 more
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Presence of Aromatase Inhibitors in Cycads
Journal of Ethnopharmacology, 1995 Cycads, the most primitive of the living gymnosperms, have been used and continue to be used for food and medicinal purposes by many cultures, although toxins must be removed before ingestion.
Yossef Itzhak, David Puett, D Puett
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Science, 1968
Recurrent somatic reduction is a normal ontogenetic process in apogeotropic roots of cycads, which develop into dichotomously branching coralloid masses. The reduced cells make up part of a ring of differentiated cortical tissue lying midway between the pericycle and the epidermis; they serve as fillers among the large cells and become charged with ...
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Recurrent somatic reduction is a normal ontogenetic process in apogeotropic roots of cycads, which develop into dichotomously branching coralloid masses. The reduced cells make up part of a ring of differentiated cortical tissue lying midway between the pericycle and the epidermis; they serve as fillers among the large cells and become charged with ...
openaire +2 more sources
2015
Cycads are regarded as the “Living Fossils” and belong to a specialized group of plants having ancient lineage possessing great significance from the evolutionary point of view. During excavations, the cycad fossils located and accepted as related to the similar lineage as the present-day cycads have been known from the early Permian period, ca.
Anil K. Goel, J. S. Khuraijam
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Cycads are regarded as the “Living Fossils” and belong to a specialized group of plants having ancient lineage possessing great significance from the evolutionary point of view. During excavations, the cycad fossils located and accepted as related to the similar lineage as the present-day cycads have been known from the early Permian period, ca.
Anil K. Goel, J. S. Khuraijam
openaire +1 more source