Results 31 to 40 of about 319 (110)

INDEPENDENT ORIGINATION OF FLORAL ZYGOMORPHY, A PREDICTED ADAPTIVE RESPONSE TO POLLINATORS: DEVELOPMENTAL AND GENETIC MECHANISMS [PDF]

open access: yes, 2016
Observations of floral development indicate that floral organ initiation in pentapetalous flowers more commonly results in a medially positioned abaxial petal (MAB) than in a medially positioned adaxial petal (MAD), where the medial plane is defined by ...
Bukhari, Ghadeer, Zhang, Wenheng
core   +1 more source

Phytochemicals, antimicrobials and antioxidants studies of the stem bark extract from calophyllum ferrugineum / Izzah Afifah Noh and Vivien Yi Mian Jong [PDF]

open access: yes, 2020
Traditionally, Calophyllum genus was used for swollen gums, arthritis, diarrhea, chronic abscess, skin infections, and lesions treatment. From the reported literature, C.
Jong, Vivien Yi Mian (Dr.)   +1 more
core   +1 more source

A Systematic Review On Traditional Use, Phytochemical And Pharmacological Properties Of Some Medicinal Plants Growing In Kurdistan Region – Iraq [PDF]

open access: yes, 2023
Many products labeled as "traditional herbal remedies" have a lengthy history of usage by definition of the term "traditional." Large segments of the population in many developing countries rely on traditional healers and their arsenal of medicinal ...
Anwer N. Mamdoh   +2 more
core   +2 more sources

Adaptations of succulent plants for survival in desert ecosystems [PDF]

open access: yes, 2019
Cilj ovog seminara bio je nabrojati prilagodbe sukulentnih biljaka koje su im nužne za preživljavanje u pustinjskim ekosustavima. Sukulenti su biljke koje imaju posebne morfološke i ekofiziološke prilagodbe za pojačano primanje i pohranu vode.
Penzar, Marta
core   +2 more sources

First evidence of ranunculids in Early Cretaceous tropics [PDF]

open access: yes, 2022
Early Cretaceous floras containing angiosperms were described from several geographic areas, nearly from the Arctic to the Antarctic, and are crucial to understand their evolution and radiation.
Bachelier, Julien B.   +4 more
core   +1 more source

Expelled by the Antarctic ice: Evolutionary history of the tribe Cunonieae (Cunoniaceae)

open access: yesJournal of Systematics and Evolution, Volume 63, Issue 6, Page 1441-1457, November 2025.
Fossil calibration reveals recent radiations and biogeographical history of the Cunonieae tribe. The most densely sampled phylogeny indicated Antarctica and Patagonia as areas of origin, confirming the reestablishment of Pterophylla and revealing the northward movement of Weinmannia into the tropical Andes.
Francisco Fajardo‐Gutiérrez   +10 more
wiley   +1 more source

Plastid phylogenomic analysis of green plants: A billion years of evolutionary history

open access: yesAmerican Journal of Botany, Volume 105, Issue 3, Page 291-301, March 2018., 2018
Premise of the Study For the past one billion years, green plants (Viridiplantae) have dominated global ecosystems, yet many key branches in their evolutionary history remain poorly resolved. Using the largest analysis of Viridiplantae based on plastid genome sequences to date, we examined the phylogeny and implications for morphological evolution at ...
Matthew A. Gitzendanner   +4 more
wiley   +1 more source

Acute toxicological assessment of seashore mangosteen (Garcinia hombroniana) aqueous extract [PDF]

open access: yes, 2016
Garcinia hombroniana has been used in Malay traditional medicine to treat various disorders such as abdominal pain and gonorrhea, and little is known about its toxicological properties. This study investigated the acute toxicological effects of the plant’
Abdul Kadir, Arifah   +7 more
core  

Challenges of comprehensive taxon sampling in comparative biology: Wrestling with rosids

open access: yesAmerican Journal of Botany, Volume 105, Issue 3, Page 433-445, March 2018., 2018
Abstract Using phylogenetic approaches to test hypotheses on a large scale, in terms of both species sampling and associated species traits and occurrence data—and doing this with rigor despite all the attendant challenges—is critical for addressing many broad questions in evolution and ecology.
Ryan A. Folk   +5 more
wiley   +1 more source

Phylogenetic Niche Conservatism Drives Floristic Assembly Across Mexico's Temperate‐Tropical Divide

open access: yesGlobal Ecology and Biogeography, Volume 34, Issue 4, April 2025.
ABSTRACT Aim We addressed the role of climate and historical biogeography on the temperate‐tropical divide in Mexico, also known as the “Mexican Transition Zone” (MTZ). We asked: (1) How phylogenetic structure and species composition vary across the MTZ, (2) What roles dispersal, in situ speciation and climatic filtering play in assembling regional ...
Kieran N. Althaus   +4 more
wiley   +1 more source

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