Results 61 to 70 of about 3,548 (202)

LEVANTAMENTO DA FAMILIA GENTIANACEAE JUSS. NO NÚCLEO CURUCUTU, PARQUE ESTADUAL DA SERRA DO MAR, SÃO PAULO

open access: yesRevista do Instituto Florestal, 2008
Este trabalho apresenta as espécies de Gentianaceae encontradas no Núcleo Curucutu, Parque Estadual da Serra do Mar. São fornecidas chave de identificação, descrições, observações fenológicas, ilustrações e distribuição geográfica.
Allan Carlos Pscheidt, Paulo Affonso
doaj   +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

open access: yesApplications in Plant Sciences, Volume 14, Issue 2, March-April 2026.
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   +33 more
wiley   +1 more source

The effect of drought stress on the limits and costs of plasticity in floral longevity in response to pollinator decline

open access: yesAmerican Journal of Botany, Volume 113, Issue 2, February 2026.
Abstract Premise Declines in pollinator populations can reduce pollination services to plants, resulting in lower seed production. In response to these reductions, plants could increase the probability of pollinator visitation by plastically extending floral longevity.
Caelen McCabe, Christina M. Caruso
wiley   +1 more source

Secondary metabolites from endangered Gentiana, Gentianella, Centaurium, and Swertia species (Gentianaceae): promising natural biotherapeutics

open access: yes, 2020
Gentianaceae have a long history of use as traditional remedies for treatment of various ailments. The medicinal properties of crude herbal drug are attributed to bitter glycosides, flavonoids, and xanthones, the main plant secondary metabolites.
Nevena Zogovic   +5 more
core   +1 more source

Frutos e sementes em Schultesia Mart. e Xestaea Griseb. (Gentianaceae) Fruits and seeds of Schultesia Mart. and Xestaea Griseb. (Gentianaceae)

open access: yesActa Botânica Brasílica, 2007
Este trabalho tem por objetivo a descrição dos frutos e sementes das espécies dos gêneros Schultesia Mart., com 21 táxons, e Xestaea Griseb., monotípico.
Elsie Franklin Guimarães   +2 more
doaj   +1 more source

Diet Switching and Interspecific Competition in Sympatric Steppe Ungulates Under Seasonal Resource Variability

open access: yesEcology and Evolution, Volume 16, Issue 2, February 2026.
ABSTRACT Understanding the mechanisms of competition and coexistence among sympatric species is crucial for deepening our understanding of interspecific interactions and informing the conservation of rare and endangered wildlife. In this study, we utilized DNA macro‐barcoding technology to analyze the seasonal dietary habits of Kiang (Equus kiang) and ...
Huiqin Dong   +5 more
wiley   +1 more source

Nomenclatural notes on South American Gentianella (Gentianaceae, Gentianeae, Swertiinae): G. meyeniana

open access: yesUkrainian Botanical Journal
There is no known original material linked to the name Gentiana meyeniana Griseb. [≡ Gentianella meyeniana (Griseb.) Fabris]. The uncertainty about the correct application of the name, the discrepancies among the published descriptions of the species ...
Pringle J.S. , Zanotti C.A.
doaj   +1 more source

Triterpenoids from (Gentianaceae)

open access: yesNatural Product Communications, 2008
The stem bark of Anthocleista grandiflora (Gentianaceae) has yielded five triterpenoids, baruol, 3-deacetylmongolenin, anthocleistone, 6-ketoanthocleistone and lupenone together with scopoletin and (+)-de- O -methyllasiodiplodin.
Joseph J. Magadula   +2 more
doaj   +1 more source

Morfo-anatomia comparada de espécies da subtribo Coutoubeinae (Chironieae - Gentianaceae) Compared morphoanatomy of species of the subtribe Coutoubeinae (Chironieae - Gentianaceae)

open access: yesActa Botânica Brasílica, 2009
O objetivo do trabalho é caracterizar a morfo-anatomia do corpo vegetativo de Deianira erubescens, Deianira pallescens, Deianira nervosa, Deianira chiquitana e Schultesia gracilis, visando fornecer subsídios à taxonomia e compreender algumas estratégias ...
Marina Neves Delgado   +3 more
doaj   +1 more source

Multiple Glacial Refugia and Complex Postglacial Dynamics of Primula sikkimensis (Primuaceae) in the Heterogeneous Qinghai‐Tibet Plateau

open access: yesEcology and Evolution, Volume 16, Issue 2, February 2026.
Primula sikkimensis persisted in distinct glacial refugia within the Hengduan Mountains and eastern Himalayas during the Last Glacial Maximum. Subsequent postglacial range expansions onto the Qinghai–Tibet Plateau were accompanied by secondary contact and interspecific hybridization, collectively enhancing genetic diversity and adaptive capacity. These
Hua‐Ying Sun   +10 more
wiley   +1 more source

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