Results 1 to 10 of about 313 (129)
Monograph of Ceratozamia (Zamiaceae, Cycadales): an endangered genus [PDF]
PhytoKeys, 2022 Ceratozamia (Zamiaceae, Cycadales), is a member one of the most endangered seed plant groups. Species of Ceratozamia grow from near sea level up to 2,100 meters in Mexico and Mesoamerica.
Lilí Martínez-Domínguez +3 more
doaj +8 more sources
What is Ceratozamia mexicana (Zamiaceae)? [PDF]
Botanical Sciences, 2016 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
doaj +3 more sources
Lectotipificación de Ceratozamia mixeorum (Zamiaceae) [PDF]
Revista Mexicana de Biodiversidad, 2011 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
doaj +5 more sources
Plants, 2023 Ceratozamia Brongn. is one of the species-rich genera of Cycadales comprising 38 species that are mainly distributed in Mexico, with a few species reported from neighboring regions.
Sadaf Habib +6 more
doaj +4 more sources
Taxonomic review of Ceratozamia (Zamiaceae) in the Sierra Madre Oriental, Mexico [PDF]
PhytoKeys, 2018 The genus Ceratozamia is revised for the Sierra Madre Oriental in Mexico. This region is one of the biogeographic areas with the greatest diversity of species in this genus.
Lilí Martínez-Domínguez +3 more
doaj +8 more sources
Acta Palaeobotanica, 2014 New compression leaf material of Ceratozamia (Zamiaceae) has been recognised in the European Cenozoic. A leaflet of Ceratozamia floersheimensis (Engelhardt) Kvaček was recovered among unidentified material from the Oligocene of Trbovlje, former Trifail ...
Zlatko Kvaček
exaly +4 more sources
Revista Mexicana de Biodiversidad, 2011 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
doaj +2 more sources
Cronología reproductora de Ceratozamia mexicana (Cycadales)
Botanical Sciences, 2000 En Cemtozamia mexicana Brongn. el desarrollo de la semilla se cumple en 24 meses desde la iniciación de los óvulos en agosto hasta el desarrollo completo del cuerpo del embrión.
María Ydelia Sánchez-Tinoco +2 more
doaj +3 more sources
A New Species of Ceratozamia (Zamiaceae, Cycadales) from Chiapas, Mexico
Novon, 1999 A new species of cycad, Ceratozamia alvarezii (Zamiaceae) from Chiapas, is described and illustrated. This species has affinities with C. matudai from Chiapas and C. sabatoi from Quere- taro and Hidalgo. It differs from these species with regard to trunk, leaf habit, and male and female cones. It differs from C.
Andrew P Vovides +2 more
exaly +3 more sources
A New Species of Ceratozamia (Zamiaceae) from Querétaro and Hidalgo, Mexico
Novon, 1993 A new species, Ceratozamia sabatoi, is described and illustrated. Its closest affinities are with C. kuesteriana from Tamaulipas, but it differs from that species in both cone and leaf morphology. The chromosome number of Ceratozamia sabatoi is 2n = 16, and the karyotype is similar to other species of the genus.
Andrew P Vovides
exaly +4 more sources