Results 1 to 10 of about 1,693 (224)
Zamia magnifica (Zamiaceae), a new species endemic to Sierra Norte, Oaxaca, Mexico, is described. Zamia magnifica is characterized by having a rupicolous habit, pendent leaves bearing leaflets that are densely tomentose and pink to caramel in color when ...
Miguel Angel Pérez-Farrera +3 more
doaj +3 more sources
ENCEPHAIARTOS RELICTUS: A NEW SPECIES FROM SOUTHERN ...
P. J. H. Hurter, H. F. Glen
doaj +3 more sources
Monograph of Ceratozamia (Zamiaceae, Cycadales): an endangered genus [PDF]
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 +6 more sources
Seed predation and potential seed dispersers of the narrow endemic Ceratozamia norstogii (Zamiaceae) [PDF]
In this study, we report the observation of potential seed dispersers of the endemic to Mexico and narrowly distributed Ceratozamia norstogii (Zamiaceae).
Héctor Gómez-Domínguez +2 more
doaj +5 more sources
Ceratozamia schiblii (Zamiaceae): A New Cycad Species from the Eastern Mountains of Oaxaca, Mexico
Ceratozamia schiblii (Zamiaceae), a new species endemic to the highlands of eastern Oaxaca, Mexico, is described. The new species is part of the C. robusta species complex, which is a group of closely related species with very similar morphology.
Miguel Angel Pérez-Farrera +6 more
doaj +2 more sources
Ceratozamia dominguezii (Zamiaceae): A New Cycad Species from Southeastern Mexico
Ceratozamia dominguezii (Zamiaceae), a new species endemic to the lowland karstic tropical rainforests of southeastern Veracruz, Mexico, is described. The new species is part of the C.
Miguel Angel Pérez-Farrera +4 more
doaj +2 more sources
Ceratozamia chinantlensis (Zamiaceae): A New Cycad Species from La Chinantla, Oaxaca, Mexico
Ceratozamia chinantlensis sp. nov., a new cliff-dwelling cycad species from Sierra de La Chinantla, Oaxaca, Mexico, is described and compared with its congeners.
Miguel Angel Pérez-Farrera +5 more
doaj +2 more sources
Distribution and conservation status of Dioon vovidesii (Zamiaceae), a cycad from Sonora, Mexico
Extinction is not a random process; certain traits make some species more vulnerable. Cycads face a high risk of extinction due to threats such as habitat loss, illegal trade, and invasive species.
Karen Yoselin Jiménez-Cedillo +3 more
doaj +2 more sources
Zamia encephalartoides (Zamiaceae), endémica de un enclave andino seco en Colombia, es conocida a partir de pocas poblaciones en áreas intervenidas y geológicamente inestables, por lo cual está en riesgo de extinción.
Favio González
semanticscholar +1 more source
A Phytochemical and Biological Investigation of Some Plants Belong to Cycadales Order Cultivated in Egypt: Thesis Abstract [PDF]
Background: Gymnosperms are naked seed-producing plants and still a dark area in scientific researches although they considered as a rare gift of the nature. Cycads are one of the largest groups of living Gymnosperms.
Walaa Negm +3 more
doaj +1 more source

