Results 111 to 120 of about 84,624 (300)

A Taxonomic and Ecological Study of the Asilidae of Michigan [PDF]

open access: yes, 2017
Seventy-two species of Asilidae have been recorded from Michigan. An additional seven which may occur are included. Keys to subfamilies, genera and species are given. Two subfamilies and twenty-five genera are represented.
Baker, Norman T, Fischer, Roland L
core   +3 more sources

Bio‐inspired nanophotonics: Structural color, chirality, and resonance metasurfaces

open access: yesInfoMat, EarlyView.
A butterfly‐wing‐inspired anisotropic plasmonic flatband resonant metasurface. Insets, photo of the butterfly, Sasakia charonda, and the SEM image of its wing scale (above); the SEM image of the metasurface (below). Abstract The dazzling colors of butterfly wings and hummingbird feathers are not painted with pigments, but crafted by nature's invisible ...
Weihan Liu, Yao Liang, Din Ping Tsai
wiley   +1 more source

Pollen types of Sapindaceae from Brazilian forest fragments: apertural variation [PDF]

open access: yesActa Botânica Brasílica
Morphological variations in angiosperm pollen grains may aid in the differentiation of families, genera and species. Sapindaceae pollen morphology holds promise for the recognition of taxa of this cosmopolitan family, which is well distributed in ...
Talita Kely Bellonzi   +4 more
doaj   +2 more sources

Acaciapollenites acaciae sp. nov., una nueva políade de mimosoidea del neógeno, en la Cuenca del Colorado, Argentina [PDF]

open access: yes, 2006
Fossil mimosoid polyads have been recently recovered from Neogene deposits in the Colorado Basin, Argentina, and the new species Acaciapollenites acaciae sp. nov.
Caccavari, Marta Alicia   +1 more
core  

Beyond Tradition: An Integrated Toxicological, Ecological, and Public Health Perspective on Aristolochic Acids

open access: yesJournal of Applied Toxicology, EarlyView.
ABSTRACT Aristolochia species have long been used in traditional medicine for their presumed anti‐inflammatory, analgesic and antimicrobial properties. However, extensive toxicological and epidemiological evidence now demonstrates that these plants contain aristolochic acids (AAs) I and II, highly potent nephrotoxic, genotoxic, and carcinogenic ...
Victor Ventura de Souza   +2 more
wiley   +1 more source

Catálogo sistemático dos pólens das plantas arbóreas do Brasil meridional XI - Loranthaceae e Olacaceae Catalogue of southern brazilian pollen grains

open access: yesMemorias do Instituto Oswaldo Cruz, 1972
Em sequência às PROTEACEAE previamente examinadas, foram estudados nesta parte do Catálogo os grãos de pólen das LORANTHACEAE e OLACACEAE da floresta umbrófila subtropical do Sul do Brasil.
Ortrud Monika Barth
doaj   +1 more source

Pollen Morphology of Crucianella L. (Rubiaceae) Based on Light and Scanning Electron Microscope Data and Implications for Taxonomy

open access: yesMicroscopy Research and Technique, EarlyView.
This study provides the palynological analysis of 12 Crucianella L. taxa using LM and SEM. Variations in pollen size, aperture number, and exine ornamentation were identified as key traits, demonstrating their taxonomic value for distinguishing closely related species and subspecies within the genus. ABSTRACT Crucianella L.
Sevcan Celenk   +3 more
wiley   +1 more source

Main pollen characters in the diet of four stingless bees (Apidae: Meliponini) in the Chaco dry forest [PDF]

open access: yesRodriguésia
The pollen morphology of 59 floral resources found in 30 nests of four stingless bees was analyzed using nine characters. For identification and description, the pollen was acetolyzed and for cytoplasm measurements, the non-acetolyzed grains were ...
Favio Gerardo Vossler
doaj   +1 more source

Seed production in dianthus (Dianthus plumaris L.) : a thesis presented in partial fulfilment of the requirement for the degree of Master of Applied Science in Seed Technology at Massey University, Palmerston North, New Zealand [PDF]

open access: yes, 1998
Stigma receptivity, method of pollination and seed production under glass house and field conditions of ten Hammett Dianthus (Dianthus plumaris L.) cultivars were investigated in this study.
Hewage, Nandana Pushpakumara
core  

Systematics, similarity and Acanthaceae pollen morphology

open access: yesBotanical Journal of the Linnean Society, 1992
SCOTLAND, R. W., 1992. Systematics, similarity and Acanthaceae pollen morphology. A brief discussion of the history of Acanthaceae classifications is provided. It is argued that several approaches utilizing pollen morphological data for the classification of the family can be identified.
openaire   +1 more source

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