Results 61 to 70 of about 428 (163)

Taxonomic aspects and coning ecology of Cycas circinalis L. (Cycadales: Cycadaceae), a threatened species of India

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

El origen y diversificación del crecimiento cambial atípico en plantas fósiles: procesos del desarrollo involucrado

Boletín de la Sociedad Argentina de Botánica, 2012
En el registro fósil encontramos una serie de morfologías, cuyo origen sólo puede ser inferido a partir de los estudios ontogenéticos. De este modo, la comprensión de los procesos del desarrollo en plantas y el patrón resultante es de suma importancia en
Josefina Bodnar, Eliana Paula Coturel
doaj  

The value of research to selling the conservation of threatened species: the case of Cycas micronesica (Cycadopsida: Cycadales: Cycadaceae)

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
doaj   +1 more source

Comparative anatomy of leaflets of Zamia acuminata and Z. pseudomonticola (Zamiaceae) in Costa Rica

Revista de Biología Tropical, 2013
The genus Zamia is morphologically and ecologically the most diverse of the order Cycadales. Throughout its history this genus has been restricted to the New World and is presently almost entirely restricted to the Neotropics.
Rafael Acuña-Castillo, Walter Marín-Méndez   +1 more
doaj   +2 more sources

Distribution and DNA profiling of Cycas beddomei Dyer. : A critical endangered gymnosperm.

Agricultura, 2014
Cycas beddomei is a   critically endangered  plant species belonging to the cycadales of the  gymnosperm under family Cycadaceae grown in the hill slopes and grassy woodland forest.  It is considered as a living fossil, as its distribution is very ...
Gyana Ranjan Rout
doaj   +1 more source

Impact of Late Pleistocene-Holocene climatic fluctuations on the phylogeographic structure and historical demographics of Zamia prasina (Cycadales: Zamiaceae)

Botan‪ical Sciences, 2019
Background: Glacial periods during the Pleistocene have been hypothesized to have greatly influenced geographical patterns of genetic structure and demography of many tropical species.
Grecia Montalvo-Fernández, Lorenzo Felipe Sánchez-Teyer, Germán Carnevali, Andrew P. Vovides, Ricardo Gaytán-Legaria, Matilde Margarita Ortíz -García, Jaime Alejandro Muñoz-López, Jaime Martínez Castillo   +7 more
doaj   +1 more source

Plant macrofossils and Biostratigraphy of the Calshaneh section, NW Tabas and its palaeoclimate analysis [PDF]

Journal of Stratigraphy and Sedimentology Researches, 2016
Jurassic deposits are well exposed in the Calshaneh area, north western of the Tabas city, Central-East Iran. It contains plant macrofossils belonging to seventeen species allocated to eleven genera of various orders such as of Equisetales, Filicales ...
Fatemeh Vaez-Javadi
doaj  

Culture-based and Sanger sequencing approaches to uncover the diversity of leaf-fungal endophytes in neotropical gymnosperms

Tecnociencia
Endophytic fungi play a crucial role in the survival and adaptation of their host plants. In recent decades, unprecedented diversity of endophytic fungi has been reported in angiosperms, but knowledge about this diversity in tropical gymnosperms is ...
Omayra Meléndez, Rita Bethancourt, Ariadna Bethancourt, Lilisbeth Rodríguez–Castro, Jorge Mendieta, Armando A. Durant Archibold , Marta Vargas, Brian Sedio, Kristin Saltonstall , Juan Carlos Villarreal A.   +9 more
doaj   +1 more source

Reconciling fossils with phylogenies reveals the origin and macroevolutionary processes explaining the global cycad biodiversity. [PDF]

New Phytol, 2023
Coiro M, Allio R, Mazet N, Seyfullah LJ, Condamine FL.   +4 more
europepmc   +1 more source