Results 91 to 100 of about 5,190 (203)

Tertiary environmental changes along the south-western African coast [PDF]

open access: yes, 1980
Main articleEvidence for major vegetation and climatic changes during the Tertiary in the south-western Cape has been obtained from a number of sites. The palynomorph assemblages indicate in general an alternation of relatively cool temperate forests ...
Coetzee, J. A.
core  

Changes in Holocene climate and the intensity of Southern Hemisphere Westerly Winds based on a high-resolution palynological record from sub-Antarctic South Georgia [PDF]

open access: yes, 2014
Sub-Antarctic South Georgia is a key region for studying climate variability in the Southern Hemisphere, because of its position at the core of the Southern Hemisphere Westerly Wind belt and between the Antarctic Circumpolar Current and the Polar Frontal
Hodgson, Dominic A.   +8 more
core   +2 more sources

Palynological studies from the Baqueró Group (Lower Cretaceous), Santa Cruz Province, Argentina. X. Pollen of Gymnospermae and final Appendix [PDF]

open access: yes, 2014
Con el presente trabajo se completa el estudio palinológico de las gimnospermas halladas en la Formación Anfiteatro de Ticó, que comprende los afloramientos de la localidad homónina, y los de la Estancia Bajo Tigre. Esta formación se encuentra en la base
Archangelsky, Sergio   +1 more
core  

Associative nitrogen fixation in nodules of the conifer Lepidothamnus fonkii (Podocarpaceae) inhabiting ombrotrophic bogs in southern Patagonia [PDF]

open access: yes, 2016
Biological N2 fixation (BNF) in the rhizosphere of Podocarpaceae is currently attributed to unspecific diazotrophs with negligible impact on N acquisition.
Aguilar, Nelson A. Bahamonde   +4 more
core   +2 more sources

First evidence for Wollemi Pine-type pollen (Dilwynites: Araucariaceae) in South America.

open access: yesPLoS ONE, 2013
We report the first fossil pollen from South America of the lineage that includes the recently discovered, extremely rare Australian Wollemi Pine, Wollemia nobilis (Araucariaceae).
Mike Macphail   +3 more
doaj   +1 more source

Resposta de sementes de Podocarpus lambertii e Podocarpus sellowii – (Podocarpaceae) à dessecação.

open access: yesCiência Florestal, 2009
Estudos relacionados ao comportamento de sementes de espécies florestais permitem a obtenção de material de boa qualidade fisiológica, imprescindível nos trabalhos silviculturais com essas espécies.
Lucinda Carneiro Garcia   +1 more
doaj   +1 more source

Más de 100 adiciones a la flora de Sinaloa: la contribución de nuevas exploraciones y la ciencia ciudadana a la investigación botánica

open access: yesBotan‪ical Sciences
Antecedentes: Sinaloa es uno de los estados con menor número de colectas botánicas en México, pero con mayor número de observaciones en la plataforma iNaturalist/iNaturalistMX.
Juan Fernando Pío-León   +7 more
doaj   +1 more source

A yellowwood by any other name: molecular systematics and the taxonomy of Podocarpus and the Podocarpaceae in southern Africa [PDF]

open access: yes, 2004
We briefly review the taxonomic history of the Podocarpaceae, with an emphasis on the recognition of numerous segregate genera out of Podocarpus sensu lato.
Barker, Nigel P, Mill, R R, Muller, E M
core   +1 more source

Ecology and Distribution of Neotropical Podocarpaceae

open access: yesSmithsonian Contributions to Botany, 2011
Podocarps are a frequent, but rarely a dominant, component of neotropical wet forests extending from South America into central Mexico and the Greater Antilles. Although podocarps are often considered to be predominantly montane taxa, several species occur in lowland forest and are locally abundant on some Pacific and Atlantic coastal islands in ...
Dalling, James W.   +4 more
openaire   +2 more sources

Usos y conocimiento tradicional de las gimnospermas en el noreste de Oaxaca, México

open access: yesActa Botanica Mexicana, 2019
Antecedentes y Objetivos: En México existen alrededor de 156 especies de gimnospermas nativas pertenecientes a seis familias. Para el estado de Oaxaca, se registran 45 especies de gimnospermas y sus habitantes poseen un sobresaliente conocimiento ...
Luis Alberto Bernal-Ramírez   +5 more
doaj   +1 more source

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