Results 51 to 60 of about 1,019 (196)
Un nouvel Encephalartos Lehm. (Zamiaceae) de Zambie [PDF]
Biotechnologie, Agronomie, Société et Environnement, 2006 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.
doaj
Las gimnospermas de los bosques mesófilos de montaña de la Huasteca Hidalguense, México
Botanical Sciences, 2001 Se realizó un tratamiento florístico de las gimnospermas que habitan los bosques mesófilos de montaña de la Huasteca Hidalguense; se registran en este tipo de vegetación cinco familias, que incluyen seis géneros y diez especies.
Raúl Contreras-Medina +2 more
doaj +1 more source
Ecological researchCycads represent an example of the success of evolutionary stasis. Despite their early origin, they survived multiple events of mass extinction and diversified in modern tropical ecosystems during the Cenozoic without major changes in their morphology ...
José Saíd Gutiérrez-Ortega +8 more
semanticscholar +1 more source
Diel net CO2 exchange of carnivorous Pinguicula is consistent with low‐level CAM photosynthesis
Plant Biology, EarlyView.In carnivorous butterworts (Pinguicula), CO2 uptake occurs primarily in the light via C3 photosynthesis, yet low‐level CAM photosynthesis, including net CO2 dark fixation, significantly improves the carbon balance of plants, especially under water‐deficit conditions.
K. Winter, M. Garcia, A. Virgo
wiley +1 more source
Phytotaxa, 2022 Zamia orinoquiensis Calonje, Betancur & A.Lindstr., a new species from the western Orinoquía region of Colombia is described and illustrated. The species is segregated from and compared to Z.
M. Calonje +7 more
semanticscholar +1 more source
Functional Ecology, Volume 40, Issue 6, Page 1862-1877, June 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract The highly threatened African cycad genus Encephalartos faces severe threats such as habitat loss and poaching. In addition, the lack of sexual recruitment due to the absence of pollinators (pollinator collapse) has emerged as another major threat.
Paul D. Janse van Rensburg +2 more
wiley +1 more source
Ecology and Evolution, Volume 16, Issue 4, April 2026.We present here the first quantitative assessment of plant endemics from the Manica Highlands (Zimbabwe‐Mozambique), totalling 216 taxa, representing over 9% of the estimated total flora. A major finding is that 173 (80%) endemic taxa are principally or entirely confined to open montane habitats such as grassland, bare rock, crags and scrub or dwarf ...
Jonathan Timberlake, Vincent Ralph Clark
wiley +1 more source
Intraspecific chromosome variation inZamia(Zamiaceae, Cycadales) [PDF]
Caryologia, 1991 SUMMARYIntraspecific chromosome variation in three species of Zamia (Zamiaceae, Cycadales) from Mexico and Belize is reported. Zamia fischeri has 2n = 16 and 18, Z. picta has 2n = 21 and 22, and Zamia sp. nov. has 2n = 22 and 26. All cytotypes have two submetacentric and two acrocentric chromosomes but differ in number of metacentric and telocentric ...
A. MORETTI +3 more
openaire +2 more sources
Botanical Sciences, 2022 Background: Nuclear ribonucleoprotein particles play a key role in RNA processing and in the gene expression pathway. Interchromatin granules (GICs) involved in the metabolism of pre-messenger RNA (pre-mRNA) were described in Allium cepa and ...
L. Agredano-Moreno +3 more
semanticscholar +1 more source
Revista Mexicana de BiodiversidadLa presencia de toxinas en Zamiaceae sugiere interacciones limitadas con vertebrados, aunque existe registro de depredación y dispersión de semillas.
Abraham Isaías Galavíz-Hernández +3 more
doaj +1 more source