Results 41 to 50 of about 1,105 (168)

Alpine flora of Kashmir Himalaya: floristic assessment, life history traits and threat status

open access: yesNordic Journal of Botany, Volume 2026, Issue 7, July 2026.
Alpine ecosystems in the Himalaya are considered to be at a higher risk to anthropogenic global change drivers. The Kashmir Himalaya, located in the north‐western side of the Himalayan biodiversity hotspot, harbors a diverse alpine flora, which remains systematically little investigated.
Bilal A. Rasray   +5 more
wiley   +1 more source

The Structure of Petioles in Pteris (Pteridaceae)

open access: yesAmerican Fern Journal, 2012
Abstract We studied the petiole structure of twelve American species of Pteris: P. ciliaris, P. cretica, P. deflexa, P. denticulata, P. ensiformis, P. exigua, P. inermis, P. multifida, P. mutilata, P. quadriaurita, P. tristicula and P. vittata, using both light and scanning electron microscopy. We found that petioles are characterized externally by the
Martínez, Olga Gladys, Vilte, Ignacio
openaire   +2 more sources

Spore morphology of Taenitis, Syngramma and Austrogramme species (Pteridoideae, Pteridaceae) from South-Eastern Asia

open access: yesTurczaninowia, 2018
A comparative study of spores of seven pecies: Taenitis blechnoides (Willd.) Sw., T. hookeri (C. Chr.) Holttum, T. pinnata (J. Sm.) Holttum, Syngramma alismifolia (Presl) J. Sm., S. lobbiana (Hook.) J. Sm., S.
A.V. Vaganov   +4 more
doaj  

Análise florística das pteridófitas do Parque Nacional da Restinga de Jurubatiba, Rio de Janeiro, Brasil Floristic analysis of the pteridophytes of the Restinga de Jurubatiba National Park, Rio de Janeiro, Brazil

open access: yesActa Botânica Brasílica, 2004
O Parque Nacional da Restinga de Jurubatiba, localizado no norte do Estado do Rio de Janeiro, abrange os municípios de Macaé, Carapebus e Quissamã. Foram registradas para a área de estudo 12 famílias com 21 gêneros e 32 espécies.
Marcelo Guerra Santos   +2 more
doaj   +1 more source

Balancing tracks and trees: Assessing railroad impact on Brazilian biodiversity

open access: yesPLANTS, PEOPLE, PLANET, Volume 8, Issue 4, Page 1345-1356, July 2026.
The Brazilian West–East Integration Railway (FIOL) aims to boost the national economy by improving commodity transport; however, it crosses three of Brazil's most biodiverse and fragile regions: the Caatinga, Cerrado and Atlantic Forest. Using digitised plant records and land‐use analyses, our study reveals significant vegetation loss within the ...
Ana Luiza Silva Rocha   +3 more
wiley   +1 more source

Is There Life After Death? The Role of Standing Dead Phorophytes in Supporting Tropical Epiphyte Diversity

open access: yesBiotropica, Volume 58, Issue 4, July 2026.
ABSTRACT Global increases in tree mortality from climate change and land‐use are altering forest structures, impacting canopy‐dwelling plants like vascular epiphytes, which depend on host trees (phorophytes). When a phorophyte dies standing, it becomes a snag, the local substrate conditions change and microclimatic exposure may increase, particularly ...
Camila Nardy Delgado   +3 more
wiley   +1 more source

PHYTOCHEMICAL AND BIOLOGICAL STUDY OF ADIANTUM CAPILLUS-VENERIS L. GROWING IN EGYPT [PDF]

open access: yesAl-Azhar Journal of Pharmaceutical Sciences, 2019
Chromatographic fractionation and chemical investigation of the methanolic extract of the fronds and rhizomes of Adiantum capillus-veneris L. (Pteridaceae), resulted in the isolation and identification of four compounds.
Mahmoud Sallam
doaj   +1 more source

A Cleaved Amplified Polymorphic Sequence Assay to Differentiate Neopestalotiopsis Species With Differing Pathogenicity in Strawberry

open access: yesPlant Pathology, Volume 75, Issue 4, July‐August 2026.
Cleaved amplified polymorphic sequence (CAPS) markers were developed to distinguish aggressive from less aggressive Neopestalotiopsis species and strains infecting strawberries. ABSTRACT Strawberries are a widely cultivated high‐value crop in Canada, with an annual farm gate value of approximately $134 million.
Jiyoo Baek   +6 more
wiley   +1 more source

Homoisoflavonoids—From Natural Specificity and Biosynthesis to Precision Health‐Promoting Mechanisms

open access: yesFood Frontiers, Volume 7, Issue 3, May 2026.
Homoisoflavonoids are rare flavonoids with a unique bi‐aromatic oxygen‐heterocyclic structure. This review synthesizes their structure–activity relationships in anti‐inflammatory, hypoglycemic, and anticancer contexts. By highlighting their specific natural distribution and outlining biosynthetic pathways, it provides a conceptual framework and ...
Jing Zhang   +4 more
wiley   +1 more source

Spore morphology of Parahemionitis arifolia (Cheilanthoideae, Pteridaceae)

open access: yesTurczaninowia, 2018
A study of spores of the single species of the genus Parahemionitis Panigrahi was performed using the method of scanning electronic microscopy (SEM). Spores of Parahemionitis arifolia (Burm.
A.V. Vaganov   +4 more
doaj  

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