Results 11 to 20 of about 1,837 (208)
ENCEPHAIARTOS RELICTUS: A NEW SPECIES FROM SOUTHERN ...
P. J. H. Hurter, H. F. Glen
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TYPIFICATION OF ...
P. Vorster
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The Cones of Encephalartos ...
R. A. Dyer
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What is Ceratozamia mexicana (Zamiaceae)? [PDF]
Explorations in central Veracruz on the Transvolcanic Mexican Belt and regions explored by 19th century botanists we found various populations of Ceratozamia whose taxonomic status is not yet completely clear. Especially two populations of C.
Andrew P. Vovides +4 more
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Biodiversidad de Zamiaceae en México
Dentro de los grupos actuales de espermatofitas, plantas con semilla, las cícadas cuentan con el registro fósil más antiguo. A pesar de ello, su estatus como “fósiles vivientes” ha sido puesto en entredicho recientemente con base en resultados de ...
Fernando Nicolalde-Morejon +5 more
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Lectotipificación de Ceratozamia mixeorum (Zamiaceae)
En 1997 fue descrita Ceratozamia mixeorum de la Sierra Mixe en el estado de Oaxaca, región de la cual esta especie es endémica. Sin embargo, se detectaron algunos errores al momento de designar el holotipo y los isotipos respectivos.
Fernando Nicolalde-Morejón +1 more
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En 1997 fue descrita Ceratozamia mixeorum de la Sierra Mixe en el estado de Oaxaca, región de la cual esta especie es endémica. Sin embargo, se detectaron algunos errores al momento de designar el holotipo y los isotipos respectivos.
Fernando Nicolalde-Morejón +1 more
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Un nouvel Encephalartos Lehm. (Zamiaceae) de Zambie [PDF]
A new Encephalartos Lehm. (Zamiaceae) from Zambia. The paper describes a new Encephalartos species collected in Zambia. This second species quoted from Zambia is notable by the yellow colour of its cones, male as well as female.
Malaisse F., Turner I., Sclavo JP.
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Ethnobotany of Mexican and northern Central American cycads (Zamiaceae) [PDF]
Background This study documents cycad-human relationships in Mexico, Belize, Guatemala, El Salvador, and Honduras over the last 6000 years. The impetus was acute need for a better understanding of previously undocumented uses of cycads in this region ...
Mark Bonta +5 more
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Spermatophyta Molecular Clock: Time Drift and Recent Acceleration. [PDF]
Exponential increase in the base substitution rate in recent geologic time. ABSTRACT Angiospermae radiation is widely recognized as a mid‐Cretaceous event, but the adaptive radiation of Asarum and Viola as spring ephemerals also occurred during the Quaternary. To better understand the evolution of Angiospermae through geological time, a robust and well‐
Osozawa S.
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