Results 61 to 70 of about 205,797 (250)

Anatomical structure overrides temperature controls on magnesium uptake – calcification in the Arctic/subarctic coralline algae Leptophytum laeve and Kvaleya epilaeve (Rhodophyta; Corallinales) [PDF]

open access: yesBiogeosciences, 2018
Calcified coralline red algae are ecologically key organisms in photic benthic environments. In recent decades they have become important climate proxies, especially in the Arctic and subarctic.
M. C. Nash, W. Adey
doaj   +1 more source

Breaking the silence of the 500-year-old smiling garden of everlasting flowers: The En Tibi book herbarium [PDF]

open access: yes, 2019
We reveal the enigmatic origin of one of the earliest surviving botanical collections. The 16th-century Italian En Tibi herbarium is a large, luxurious book with c.
Stefanaki, Anastasia   +9 more
core   +1 more source

Unknown materials of Józef Rostafiński concerning studies of the history of cultivated plants in Poland [PDF]

open access: yes, 1987
In 1883 Józef Rostafiński distributed a questionnaire in order to collect the local names which were in use for cultivated plants in the territory of Poland.
Köhler, Piotr
core  

Reduction of the Hawaiian genus Platydesma into Melicope section Pelea (Rutaceae) and notes on the monophyly of the section

open access: yesPhytoKeys, 2017
Platydesma, an endemic genus to the Hawaiian Islands containing four species, has long been considered of obscure origin. Recent molecular phylogenetic studies have unequivocally placed Platydesma within the widespread genus Melicope as sister to the ...
Marc S. Appelhans   +2 more
doaj   +3 more sources

Myrsine cirrhosa (Primulaceae), a distinctive new shrub species from Kaua‘i, Hawaiian Islands [PDF]

open access: yesPhytoKeys
Myrsine cirrhosa Lorence & K.R.Wood (Primulaceae), a new single-island endemic shrub species from Kaua‘i, Hawaiian Islands, is described and illustrated. Notes on its distribution, ecology and conservation status are included.
David H. Lorence   +3 more
doaj   +3 more sources

The Visible Empire: The Expert View and Images in the Scientific Expeditions of the Enlightenment

open access: yesCuadernos Dieciochistas, 2010
This essay examines the Spanish natural history expeditions to Latin America in the late 18th Century —particularly the Real Expedición Botánica a Nueva Granada, directed by José Celestino Mutis— as an approach to an analysis of the importance of visual ...
Daniela BLEICHMAR
doaj  

Forest succession in the southern limits of Early Wisconsin glaciation as indicated by a pollen spectrum from Bacon\u27s swamp, Marion county, Indiana [PDF]

open access: yes, 1938
In the past few years, the Botany Department of Buter University has conducted an extensive study of Indiana peat bogs. Such a study will throw much light upon the history of Indiana vegetation. This paper is a portion of the greater survey and describes
Otto, James H.
core   +1 more source

Regional Genetic Structure in the Aquatic Macrophyte Ruppia cirrhosa Suggests Dispersal by Waterbirds [PDF]

open access: yes, 2017
The evolutionary history of the genus Ruppia has been shaped by hybridization, polyploidisation and vicariance that have resulted in a problematic taxonomy. Recent studies provided insight into species circumscription, organelle takeover by hybridization,
A Marchioni-Ortu   +71 more
core   +2 more sources

On the relationship between Pau and Goncalo Sampaio

open access: yesAnales del Jardín Botánico de Madrid, 1999
A review of 30 postal Communications from Sampaio kept in Barcelona and 15 from Pau kept in Oporto, commenting on their relationship which, aside from its cordiality, appears to be of notable interest for the history of Iberian Botany.
Manuel Lainz S.J.
doaj   +1 more source

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