Zobrazeno 1 - 10
of 192
pro vyhledávání: '"James I. Cohen"'
Publikováno v:
BMC Plant Biology, Vol 24, Iss 1, Pp 1-19 (2024)
Abstract Background Lithospermeae is the largest tribe within Boraginaceae. The tribe has been the focus of multiple phylogenetic studies over the last 15 years, with most focused on one genus or a few genera. In the present study, we newly sequenced
Externí odkaz:
https://doaj.org/article/49c3e84c4fbd4c80a04ae4d420e5af39
Autor:
Brenda Molano-Flores, James I. Cohen
Publikováno v:
Plants, Vol 13, Iss 5, p 605 (2024)
Plant reproductive ecology explores aspects of the biology and ecology of plants ranging from breeding systems, plant–pollinator interactions, seed germination, floral traits, and much more [...]
Externí odkaz:
https://doaj.org/article/0666be7ba5fb46098de62b0186ce83c6
Publikováno v:
Applications in Plant Sciences, Vol 7, Iss 9, Pp n/a-n/a (2019)
Premise Morphometric analysis is a common approach for comparing and categorizing botanical samples; however, completing a suite of analyses using existing tools may require a multi‐stage, multi‐program process. To facilitate streamlined analysis
Externí odkaz:
https://doaj.org/article/392fd268912a4154a45a66e3a601d3e2
Publikováno v:
Bothalia: African Biodiversity & Conservation, Vol 49, Iss 1, Pp e1-e5 (2019)
Background: Recent field work in the Baviaanskloof, Eastern Cape, resulted in several collections of an unknown species of Lithospermum (Boraginaceae), a genus that is taxonomically relatively poorly understood in southern Africa. Objectives: To des
Externí odkaz:
https://doaj.org/article/bf46143230c2411aade8bc0975427a0c
Autor:
James I. Cohen, Lauren R. Griffen
Publikováno v:
Conservation Genetics. 24:137-152
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15b6f20fcdf02fb095081916e8c6beb5
https://doi.org/10.1007/s10592-022-01478-y
https://doi.org/10.1007/s10592-022-01478-y
Autor:
James I. Cohen
Publikováno v:
Journal of the Botanical Research Institute of Texas. 16:373-375
Two taxonomic and nomenclatural issues in Lithospermum are addressed. The new combination L. thurberi based on Onosmodium thurberi is made, and L. macromeria (Macromeria viridiflora) is included as a heterotypic synonym. Lithospermum bejariense and O
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0a309bff353b59014bb58215b9b508b
https://doi.org/10.17348/jbrit.v16.i2.1256
https://doi.org/10.17348/jbrit.v16.i2.1256
Autor:
James I. Cohen, Lauren R. Griffen
Publikováno v:
Conservation Genetics. 24:153-153
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4174305d1d3d9341a323fe44178ed0ac
https://doi.org/10.1007/s10592-022-01482-2
https://doi.org/10.1007/s10592-022-01482-2
Autor:
James I. Cohen
Publikováno v:
Cladistics : the international journal of the Willi Hennig SocietyReferences. 27(6)
Lithospermum (Boraginaceae) includes ca. 60 species and exhibits a wide range of floral, palynological, and vegetative diversity. Phylogenetic analyses based on 10 chloroplast DNA regions and 22 morphological characters were conducted in order to (i)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::345c29ecdcc8050f24611a63150b52d3
https://pubmed.ncbi.nlm.nih.gov/34875811
https://pubmed.ncbi.nlm.nih.gov/34875811
Publikováno v:
The Southwestern Naturalist. 65
Oreocarya crassipes, an endangered angiosperm native to the Trans-Pecos region in southern Brewster County, Texas, exhibits distyly, a breeding system that includes two floral morphs with reciprocal positioning of the anthers and stigmas. The long-st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5679d6e944a7702d190ad0d2bfaed888
https://doi.org/10.1894/0038-4909-65.2.105
https://doi.org/10.1894/0038-4909-65.2.105
Autor:
Maryam Noroozi, James I. Cohen, Jocelyn M. Witherspoon, David Bogler, Gillian L. Ryan, James S. Miller, Mehrshid Riahi, Farrokh Ghahremaninejad
Publikováno v:
Cladistics : the international journal of the Willi Hennig SocietyReferences. 38(2)
Pollen, the microgametophyte of seed plants, has an important role in plant reproduction and, therefore, evolution. Pollen is variable in, for example, size, shape, aperture number; these features are particularly diverse in some plant taxa and can b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a51c1eff545c7455345f4b3b369916c
https://pubmed.ncbi.nlm.nih.gov/35277891
https://pubmed.ncbi.nlm.nih.gov/35277891