Results 41 to 50 of about 2,565 (201)

Description of a new soft scale insect of the genus Pulvinaria Targioni Tozzetti (Hemiptera, Coccoidea, Coccidae) from Bogota, Colombia

open access: yesZooKeys, 2015
A new soft scale (Hemiptera: Coccoidea: Coccidae) species, Pulvinaria caballeroramosae Tanaka & Kondo, sp. n., is described from specimens collected on twigs of Ficus soatensis Dugand (Moraceae) in Bogota, Colombia.
Hirotaka Tanaka, Takumasa Kondo
doaj   +1 more source

Phylogeny and Geographic History of Annonaceae [PDF]

open access: yes, 1997
Whereas Takhtajan and Smith situated the origin of angiosperms between Southeast Asia and Australia, Walker and Le Thomas emphasized the concentration of primitive pollen types of Annonaceae in South America and Africa, suggesting instead a Northern ...
Doyle, James A., Le Thomas, Annick
core   +1 more source

AKTIVITAS ANTIBAKTERI EKSTRAK KULIT KAYU AKWAY (Drimys piperita Hook f.) TERHADAP BAKTERI PATOGEN (Antibacterial Activities of Akway (Drimys piperita Hook f.) Bark Extracts on Pathogenic Bacteria)

open access: yesAgritech, 2015
Akway ( Hook f.) is a woody, evergreen and aromatic plan that was a member of Winteraceae. This plant is used by Sougb tribe living in Sururey village, District of Manokwari, West Papua to heal malaria and to enhance the vitality of body.
Gino Nemesio Cepeda   +2 more
doaj   +1 more source

Relações ecológicas entre orquídeas e forófitos em Floresta Ombrófila Mista sob influência nebular, Planalto Serrano Catarinense

open access: yesRodriguésia, 2020
Resumo Este estudo objetivou conhecer a riqueza e estrutura de orquídeas epífitas e seus forófitos, avaliar as interações entre estas duas assembleias, bem como, amostrar as espécies forofíticas e não forofíticas para orquídeas em um remanescente de ...
Karina Montibeller-Silva   +3 more
doaj   +1 more source

Chemical composition and anti-inflammatory evaluation of essential oils from leaves and stem barks from Drimys brasiliensis Miers (Winteraceae) [PDF]

open access: yes, 2010
The essential oils from leaves and stem barks from Drimys brasiliensis Miers (Winteraceae) were individually obtained by hydrodistillation and their compounds characterized by use of GC/FID and GC/MS.
Carvalho, Larissa A. C   +5 more
core   +2 more sources

Potencial antimicrobiano e caracterização fitoquímica de extratos da casca do caule de Drimys brasiliensis Miers (Winteraceae)

open access: yes, 2020
Introducao : na area da saude, a resistencia aos antimicrobianos tem se constituido um grave problema, fazendo com que a busca por alternativas farmacologicas assuma grande importância.
A. Sobottka   +4 more
semanticscholar   +1 more source

Gelechiidae Moths Are Capable of Chemically Dissolving the Pollen of Their Host Plants [PDF]

open access: yes, 2011
Background: Many insects feed on pollen surface lipids and contents accessible through the germination pores. Pollen walls, however, are not broken down because they consist of sporopollenin and are highly resistant to physical and enzymatic damage. Here
Chen, Shi   +4 more
core   +1 more source

Wood allocation trade‐offs between fiber wall, fiber lumen, and axial parenchyma drive drought resistance in neotropical trees

open access: yesPlant, Cell &Environment, Volume 43, Issue 4, Page 965-980, April 2020., 2020
Abstract Functional relationships between wood density and measures of xylem hydraulic safety and efficiency are ambiguous, especially in wet tropical forests. In this meta‐analysis, we move beyond wood density per se and identify relationships between xylem allocated to fibers, parenchyma, and vessels and measures of hydraulic safety and efficiency ...
Thomas A. J. Janssen   +4 more
wiley   +1 more source

Rooting of semihardwood cuttings of cataia collected in four seasons

open access: yesCiência Rural, 2015
Drymis brasiliensisMiers is a specie of the Winteraceae family, commonly known as cataia or pepper bark. This research was carried out with the aim to study the rooting of semihardwood cuttings, subjected to different concentrations of indolebutyric acid
Luciele Milani Zem   +3 more
doaj   +1 more source

Macrophytes assemblages in mountain lakes of Huerquehue National Park (39ºS, Araucanía Region, Chile) [PDF]

open access: yes, 2012
The lakes studied (Tinquilco, Verde, Toro, Chico) are located in the Huerquehue National Park (39°08’S, 71°40’W), Chile. An inventory of the aquatic and riparian species was performed between December 2005 and March 2006. A null model analysis was done

core   +1 more source

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