Results 71 to 80 of about 1,802 (206)
Journal of Threatened Taxa, 2011 Cycas circinalis is Red Listed Endangered species. It is a tropical dry deciduous dioecious shrub confined to the Western Ghats and its adjacent regions. It reproduces asexually and sexually.
A.J.S. Raju, N.G. Rao
doaj +1 more source
Mid-Mesozoic leaves from near Ida Bay, southern Tasmania, Australia [PDF]
, 1987 Several leaf specimens from a locality in southern Tasmania are described. They are assigned to Coniopteris websterii sp.nov., Cladophlebis indica (Oldham & Morris) Sahni & Rao, Pachypteris sp. cf.
Kim, JH, Kimura, T, Tidwell, WD
core +3 more sources
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
Journal of Threatened Taxa, 2014 A case study is described wherein strong focus on research during the developing threats that caused the elevation of Cycas micronesica from Near Threatened to Endangered status illustrates how targeted research results may be used to aid in conservation
Thomas E. Marler, Anders J. Lindström
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Intra-specific variability and unusual organization of the repetitive units in a satellite DNA from Rana dalmatina: molecular evidence of a new mechanism of DNA repair acting on satellite DNA. [PDF]
, 2006 We have characterized the S1 satellite from eight European populations of Rana dalmatina by Southern blot, cloning and a new method that determines the sequence variability of repetitive units in the genome.
CHINALI, GIANNI +2 more
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Mongolitria: A new Early Cretaceous three‐valved seed from Northeast Asia
American Journal of Botany, Volume 111, Issue 2, February 2024.Abstract Premise Fossil seeds recovered from the Early Cretaceous of Mongolia and Inner Mongolia, China, are described and assigned to Mongolitria gen. nov., a new genus of gymnosperm seed. Methods Abundant lignitized seeds along with compression specimens isolated from the matrix were studied using a combination of scanning electron microscopy ...
Maya A. Bickner +5 more
wiley +1 more source
CyanoNews (Vol. 6, No. 2, July 1990) [PDF]
, 1990 CyanoNews was a newsletter that served the cyanobacteriological community from 1985 to 2003, with content provided by readers (sort of a blog before there were blogs). The newsletter reported new findings from the lab, summaries of recent meetings (often
Elhai, Jeff
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Signification des aires à empreintes de pas de vertébrés des Grands Causses (Biologie et Physiologie) [PDF]
, 2013 Numerous footprints areas has been found, since 1962, in Permian, Triassic and Hettango-Sinemurian. All show precised oriented trackways.
Demathieu, Georges, Gand, Georges
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Presencia de Sagenopteris en facies wealdense de la provincia de Burgos. Estudio fitodermatológico [PDF]
, 1982 [ES] Se analizan por primera vez en España restos de Sagenopteris. Estos fósiles proceden de niveles wealdenses de la provincia de Burgos, y como resultado de este estudio se incluyen dentro de la especie S. mantellí Dunker.
Álvarez Ramis, Concepción
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