Results 21 to 30 of about 5,550 (213)

The Dryopteris patula complex (Dryopteridaceae) in Mexico: morphometric analyses

open access: yesBotan‪ical Sciences, 2009
We studied collections from four species of the Dryopteris patula complex (D. cinnamomea, D. patula, D. rosea, and D. rossii) to identify the morphological characters that distinguish them from one another. D. maxonii and D. wallichiana were included as
Victoria Hernández Hernández   +2 more
doaj   +1 more source

Genomics is modifying our concepts of evolution in homosporous and heterosporous vascular plants. [PDF]

open access: yesAm J Bot
Abstract Across the tree of life, and particularly within land plants, there is a wide diversity and disparity of genome structure. The most well‐studied are angiosperms, comprising mostly small and dynamic genomes, with a history of ancient whole genome duplications.
Kinosian SP.
europepmc   +2 more sources

dryopteris

open access: yes, 2021
Gymnocarpium dryopteris (Linnaeus) Newmancommon oak ferngymnocarpe fougère-du-chêneWest Castle ValleyT. Chisholmmixed; rich with tall bracken fern1559 mPicea glauca, Dryopteris expansa, Tiarella unifoliata, Luzula parviflorainfrequent in 50x50m ...
1162 T. Chisholm, D. Jakovljevic
core   +1 more source

Two New Flavonoid Glycosides from the Fern

open access: yesNatural Product Communications, 2007
During a search for new flavonoids, two new natural products identified by chemical and spectral methods as quercetin 3- O -(2″,3″,6″-triacetylglucoside) and apigenin 4′- O -(6″- p -coumaroylglucoside) have been found in the fern Dryopteris villarii.
Filippo Imperato
doaj   +1 more source

Effects of methanol leaf extract of Dryopteris filix-mas on catalase activity and malondialdehyde levels in the brain of adult male Wistar rats

open access: yesSokoto Journal of Medical Laboratory Science, 2023
This study was carried out to determine the effect of methanol leaf extract of Dryopteris filix-mas on catalase (an antioxidant) activity and malondialdehyde (an oxidative stress marker) levels in brain of wistar rats.
Awhin, P.E. , Ajoh, A.I. ,Erutere, B. and Dennis-Eboh, U.
doaj  

Cytotoxicity-Guided Isolation of Two New Phenolic Derivatives from Dryopteris fragrans (L.) Schott

open access: yesMolecules, 2018
Dryopteris fragrans is a valuable medicinal plant resource with extensive biological activities including anti-cancer, anti-oxidation, and anti-inflammation activities.
Tong Zhang   +5 more
doaj   +1 more source

Chemical Constituents of the Roots Extract of Dryopteris schimperiana and Evaluation for Antibacterial and Radical Scavenging Activities

open access: yesEthiopian Journal of Science and Sustainable Development, 2020
Dryopteris schimperiana (Dryopteridaceae) is traditionally used in folk medicine of Ethiopia against bacteria and internal parasites. In view of its traditional use and absence of scientific reports, an attempt was made to explore the chemical ...
Bayan Abdi   +6 more
doaj   +1 more source

PTERIDOPHYTA: DRYOPTERIS FILIPALEATA (PTEROPSIDA: DRYOPTERIDACEAE). A NEW SPECIES FROM TROPICAL EAST AFRICA

open access: yesBothalia: African Biodiversity & Conservation, 2004
DRYOPTERIS FILIPALEATA (PTEROPSIDA: DRYOPTERIDACEAE).
J. P. Roux
doaj   +1 more source

PTERIDOPHYTA: DRYOPTERIS GORGONEA (PTEROPSIDA: DRYOPTERIDACEAE): A NEW SPECIES FROM THE CAPE VERDE ISLANDS

open access: yesBothalia: African Biodiversity & Conservation, 2004
DRYOPTERIS GORGONEA (PTEROPSIDA: DRYOPTERIDACEAE), A NEW SPECIES FROM THE CAPE VERDE ...
J. P. Roux
doaj   +1 more source

Pairing Spruce Budworm Control and Minimal Understory Perturbations: Effects of Btk Spraying Frequency in Boreal Forests. [PDF]

open access: yesEcol Evol
Spruce budworm epidemic induces tree mortality and modifies understory communities. Could aerial spraying of Btk reduce perturbations in understory communities? Biannual Btk spraying could prevent both wood loss and understory degradation. ABSTRACT Since 1985, more than 10 million hectares of Canadian forests have been treated against spruce budworm ...
Robitaille M, Pothier D, Pellerin S.
europepmc   +2 more sources

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