Results 1 to 10 of about 514,208 (351)

Cypripedium acaule Aiton [PDF]

open access: yes, 1957
https://thekeep.eiu.edu/herbarium_specimens_byname/21428/thumbnail ...
Botany 252
core   +3 more sources

Paulina Tikhonova, a botanist and head of the Kherson Museum of Natural History in the 1920s and early 1930s

open access: yesGeo&Bio, 2023
The aim of the article is to explore the life and professional path of Paulina Tikhonova, a botanist and head of the Kherson Natural History Museum, during the difficult period of formation of the museum network in the early 1920s to early 1930s.
Alexander Pryn
doaj   +1 more source

Leaf clustering using circular densities [PDF]

open access: yesarXiv, 2022
In the biology field of botany, leaf shape recognition is an important task. One way of characterising the leaf shape is through the centroid contour distances (CCD). Each CCD path might have different resolution, so normalisation is done by considering that they are circular densities. Densities are rotated by subtracting the mean preferred direction.
arxiv  

Annealing a Magnetic Cactus into Phyllotaxis [PDF]

open access: yesPhysical Review E 81 (4), 046107 (2010), 2010
The appearance of mathematical regularities in the disposition of leaves on a stem, scales on a pine-cone and spines on a cactus has puzzled scholars for millennia; similar so-called phyllotactic patterns are seen in self-organized growth, polypeptides, convection, magnetic flux lattices and ion beams.
arxiv   +1 more source

Botany at Eastern Illinois University [PDF]

open access: yes, 2009
Eastern Illinois University was established in 1899, and from its beginning the importance of the botanical sciences was recognized. Two terms of botany were required for the four year program. Dr. Otis W.
Coons, Janice M.   +2 more
core   +6 more sources

“Flower of Aristolochia gigas var. sturtevantii used as a hat by a native of British Guiana” – a photograph from Everard im Thurn at the Royal Botanic Gardens, Kew [PDF]

open access: yes, 2015
The Royal Botanic Gardens, Kew, holds a small but valuable and unstudied collection of photographs by Everard im Thurn (1852–1932) who contributed to botany, with specimens and publications, and to anthropology, publishing works that highlight his ...
Albuquerque, Sara
core   +1 more source

An effective and friendly tool for seed image analysis [PDF]

open access: yes, 2021
Image analysis is an essential field for several topics in the life sciences, such as biology or botany. In particular, the analysis of seeds (e.g. fossil research) can provide significant information on their evolution, the history of agriculture, plant domestication and knowledge of diets in ancient times.
arxiv   +1 more source

DataPLAN: A Web-Based Data Management Plan Generator for the Plant Sciences

open access: yesData, 2023
Research data management (RDM) combines a set of practices for the organization, storage and preservation of data from research projects. The RDM strategy of a project is usually formalized as a data management plan (DMP)—a document that sets out ...
Xiao-Ran Zhou   +8 more
doaj   +1 more source

Kolonialbotanik: Networks of collecting practices in colonial Germany

open access: yesLocus, 2022
In April 1913, Dr. Friedrich Tobler, a lecturer in botany at the University of Münster in Germany, returned to Europe from the botanical research station Amani in Deutsch Ostafrika (DOA, German East Africa, including present-day Tanzania, Burundi and ...
Felicity Jensz
doaj  

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