Results 51 to 60 of about 80,719 (257)

Taxonomic results of the Bryotrop expedition to Zaire and Rwanda : 23., Neckeraceae, Pterobryaceae, Hypopterygiaceae [PDF]

, 1993
Neckera submacrocarpa may be recognized by the numerous paraphyllia to ca. 2 mm long, and distally rugose perichaetial leaves. According to De Sloover (1977), it occurs in montane forests and Senecio heaths between 2 400 and 3 650 m. The present material
Enroth, Johannes
core  

Chemical composition and antibacterial activity of essential oil of Senecio graciliflorus

Journal of Drug Delivery and Therapeutics, 2019
Objective: Among natural products, essential oils and their contituents represent a structurally diverse group of organic compounds with significant antibacterial activity.
B. Joshi, Vinod Kumar, B. Chandra, N. D. Kandpal   +3 more
semanticscholar   +1 more source

Assessing the viability of genebanked seeds from rare, wild plants native to the United States using the D.E.A.D. paradigm

Applications in Plant Sciences, EarlyView.
Abstract Premise Genebanks must maintain viable seeds for decades. Seeds that germinate are clearly alive, but some seeds, often from wild populations, do not germinate because they are dormant, empty, aged, or damaged (D.E.A.D.). This work evaluates the effects of D.E.A.D.
Christina Walters, Lisa M. Hill, Katherine D. Heineman, Hannah M. Tetreault, Shaimaa Ibrahim, Katherine Markstein, Cheryl Birker, Kris Freitag, Dustin Wolkis, Michael Kunz, Sheila Murray, Nathaniel Kingsley, Alexandra Seglias, Nicholas Matsumoto, Thomas N. Kaye, Cheryl Peterson, Matthew A. Albrecht, Noah Dell, Stacy Anderson, Steve Blackwell, David Remucal, Wendy Gibble, Anita Tiller, Emily Coffey, Jason Ligon, Laurie Blackmore, Carrie Radcliffe, Heather E. Schneider, Kristen Nelson, David Sollenberger, Jessamine Finch, Kate Wellspring, Robert Jetton, Joyce Maschinski   +33 more
wiley   +1 more source

Dynamics of the weed infestation with Senecio vulgaris after a single entry from seeds

Julius-Kühn-Archiv, 2014
Due to a short generation time associated with a high seed production and a quick germination, which is possible throughout the year, Senecio vulgaris is especially in horticultural crops one of the most important weed species.
Söchting, Hans-Peter, Zwerger, Peter
doaj   +1 more source

First Documented Record of \u3ci\u3eOarisma Powesheik\u3c/i\u3e (Lepidoptera: Hesperiidae) in Canada [PDF]

, 2017
During a brief survey of the prairie areas near Vita, Manitoba, July 1985, Oarisma powesheik Parker was found to be abundant, although often local.
Catling, P. M, Lafontaine, J. D
core   +2 more sources

Nutritional composition, antioxidant activity and isolation of scopoletin from Senecio nutans: support of ancestral and new uses

Natural Product Research, 2018
Continuing with our study characterising Senecio nutans Sch. Bip., we have isolated and identified a simple coumarin, scopoletin, that could be relevant for the biological properties of the species related with the ancestral medical uses.
Claudio Parra, E. Soto, G. León, C. Salas, M. Heinrich, C. Echiburú-Chau   +5 more
semanticscholar   +1 more source

Catalysts for change: Museum gardens in a planetary emergency

PLANTS, PEOPLE, PLANET, EarlyView.
Natural history museums are often seen as places with indoor galleries full of dry‐dusty specimens, usually of animals. But if they have gardens associated with them, museums can use living plants to create narratives that link outside spaces to inside galleries, bringing to life the challenges facing biodiversity.
Ed Baker, Paul Kenrick, Sandra Knapp, Tom McCarter, John Tweddle   +4 more
wiley   +1 more source

Areas of endemism and recent speciation in the Southern Cone of South America, using Senecio (Asteraceae) as a proxy

Biological Journal of the Linnean Society, 2019
We set out to identify areas of endemism (AEs) among vascular plants in the Southern Cone of South America, using the genus Senecio (Asteraceae) as proxy. The use of a proxy allows a large-scale study to be carried out in a relatively short time and is
G. Elías, L. Aagesen
semanticscholar   +1 more source

Speciation with gene flow

PLANTS, PEOPLE, PLANET, EarlyView.
Biodiversity is threatened by human activities, with extinction debt accumulating rapidly. Many of these activities change the connectivity of populations, fragmenting existing population systems or bringing previously isolated populations or species into contact.
Zhiqin Long, Xu Zhang, Yue Yu, Gregory L. Owens, Diana J. Rennison, Clarisse Palma‐Silva, Daniel Ortiz‐Barrientos, Loren H. Rieseberg   +7 more
wiley   +1 more source

Cassini's Compositae genera: A nomenclatural and taxonomic assessment [PDF]

, 2010
Work on the Global Compositae Checklist has highlighted uncertainties and errors in the nomenclatural parameters of many genera and subgenera described by Henri Cassini. Problems concern rank (subgenus vs. genus); type designation; correct place of valid
Flann, C.M., Greuter, W., Hind, D.J.N.
core