Results 41 to 50 of about 1,006,484 (278)

Authentic specimens of Juncaceae names stored in the Herbarium of Ivan Franko National University of Lviv

open access: yesБіологічні студії
Background. The Herbarium of Ivan Franko National University of Lviv (LW) is one of the oldest herbaria in Ukraine. It was established in 1783 by Prof. B. Schiwerek.
Ihor Olshanskyi   +2 more
doaj   +1 more source

Historical and Contemporary Herbaria as a Source of Data in Plant Taxonomy and Phytogeography Research: An Example from Poland

open access: yesDiversity
The art of drying plants has a long tradition. It was already known in the Middle Ages as a form of documenting flora. It began to develop more intensively in Europe in the 16th century.
Adam Rostański   +2 more
doaj   +1 more source

Typification of three names in the genus Knautia (Caprifoliaceae; Dipsacoideae)

open access: yesMediterranean Botany, 2022
The typification of the names Trichera subscaposa var. rupicola, T. subscaposa var. macrotrycha, and Knautia subscaposa var. subintegerrima is discussed.
Pedro Pablo Ferrer Gallego   +1 more
doaj   +1 more source

Herbarium Life: Shipping Cryptogamic Specimens

open access: yes, 2022
of conference oral presentation on Herbarium Life: Shipping Cryptogamic Specimens by Genevieve E. Tocci of Harvard University Herbaria 22 Divinity Ave. United States for SPNHC2022 Conference, Edinburgh.
Tocci, Genevieve E.
core   +1 more source

Reproductive stages in lowbush blueberry (Vaccinium angustifolium) occur earlier with increasing temperature

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Climate change is altering the timing of many plant phenological events, yet most studies focus on flowering, with less attention given to later reproductive stages such as fruit development and ripening. Vaccinium angustifolium (lowbush blueberry) is an important perennial berry species that may be sensitive to these changes.
Jenna Floyd   +5 more
wiley   +1 more source

Exposure to heat waves and drought improves subsequent leaf heat tolerance for five oak species in southern California

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Given the threats of climate change, we investigated the impact of high temperatures separately and in combination with reduced soil water on leaf heat tolerance for five oaks (Fagaceae) with overlapping ranges in southern California, USA: Quercus agrifolia and Q. chrysolepis (evergreen species), Q. douglasii and Q.
Casey D. Wisely   +7 more
wiley   +1 more source

Adventures, hardship and a scientific legacy : Ludwig Leichhardt's 1843 journey to Mt Royal in the Hunter Valley, NSW [PDF]

open access: yes, 2013
In January 1843, curiosity for natural history led a young German naturalist, Ludwig Leichhardt, to spend about three weeks exploring Mt Royal on the north of the Hunter Valley, about 70 km north west of Newcastle, New South Wales.
Benson, Doug, Fallding, Martin
core   +1 more source

Going deeper in the automated identification of Herbarium specimens [PDF]

open access: yesBMC Evolutionary Biology, 2017
Hundreds of herbarium collections have accumulated a valuable heritage and knowledge of plants over several centuries. Recent initiatives started ambitious preservation plans to digitize this information and make it available to botanists and the general public through web portals.
Carranza-Rojas, Jose   +4 more
openaire   +5 more sources

Placing very long branch taxa in the plant tree of life: A case study with Dioscoreales mycoheterotrophs

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise The inclusion of heterotrophic plants in broader systematic studies is challenging due to substantial morphological modification, gene loss, and accelerated substitution rates following photosynthesis loss. In particular, inclusion of very long branch (VLB) taxa with highly elevated rates may lead to phylogenomic misinference.
Marybel Soto Gomez   +7 more
wiley   +1 more source

Herbarium collections and genetic resource documentation at the Agronomy Institute Cluj-Napoca

open access: yesNotulae Botanicae Horti Agrobotanici Cluj-Napoca, 1983
The importance of voucher specimens in genetic resource documentation is briefly discussed and the scientific herbarium of the Agronomy Institute Cluj-Napoca is presented.
Attila T. SZABO
doaj   +1 more source

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