Results 61 to 70 of about 905 (150)

Validation of an hplc method for the determination of 1,7-dihydroxy-2,3-methylenedioxyxanthone in extracts obtained from Polygala cyparissias A. St. Hil. & Moq. (Polygalaceae) and evaluation of the influence of its content on the gastroprotective activity

open access: yesQuímica Nova, 2014
Polygala cyparissias is a plant widespread in Southern Latin America. Recently, we demonstrated the gastroprotective activity of the extract, as well as for one of the isolated metabolites-1,7-dihydroxy-2,3-methylenedioxyxanthone (MDX).
Luiz Carlos Klein-Júnior   +3 more
doaj   +1 more source

A re-evaluation of Nylandtia (Polygalaceae)

open access: yesSouth African Journal of Botany, 1991
A re-evaluation of the monotypic genus Nylandtia Dumort. is presented in which two varieties, N. spinosa (L.) Dumort. var. spinosa and var. scoparia (Eckl. & Zeyh.) Johnson & Weitz, are recognized. Descriptions, synonymy, distribution data, and a key to the varieties are provided.
Johnson, C.T., Weitz, F.M.
openaire   +1 more source

Rediscovering Polygala corifolia (Polygalaceae) 170 years after its description

open access: yesActa Biológica Colombiana, 2016
The rediscovery of Polygala corifolia Planch. & Triana 170 years after the first and last collection is reported. Polygala corifolia was described based on a single collection made in the Sabana de Bogota in 1844.
Fernando Alzate Guarin
doaj   +1 more source

DUAS ESPÉCIES NOVAS DE POLYGALA L. (POLYGALACEAE ) PARA O BRASIL

open access: yesRodriguésia
RESUMO O subgênero Polygala é caracterizado dentro do gênero Polygala, sobretudo, por apresentar flores com carena cristada. Ele engloba, em território brasileiro 88 espécies e 22 variedades.
Maria do Carmo Mendes Marques   +1 more
doaj   +1 more source

VOLATILE CONSTITUENTS AND BIOLOGICAL ACTIVITIES OF ESSENTIAL OIL FROM Securidaca longepedunculata Fers. GROWING IN BENIN

open access: yesScientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry, 2012
The essential oil obtained by hydrodistillation of roots bark of Securidacaca longepedunculata Fers. (Polygalaceae) growing in Savalou, Biguinan and Gbegrou (Benin) were analyzed using capillary GC and GC/MS.
Dominique C.K. Sohounhloue   +7 more
doaj  

MORPHOLOGY OF EMBRYOS AND SEEDLINGS OF WOODY SPECIES NORTHEASTERN ARGENTINA

open access: yesBonplandia, 2000
In this paper embryos and seedlings of six native woody species of Northeast of Argentina are studied: Chrysophyllum marginatum (Hook. et Arn.) Radlk. subsp. marginatum (Sapotaceae),Eugenia uniflora L., Hexachlamys edulis (O.
María C Franceschini
doaj  

Polen de las Mieles de la Patagonia Andina (Chubut-Argentina) Pollen of honeys from the Andean Patagonia (Chubut-Argentina)

open access: yesBoletín de la Sociedad Argentina de Botánica, 2006
Se describen e ilustran mediante fotomicrografías tomadas con MO y MEB, 30 tipos polínicos, determinados en las mieles producidas en la región andina de Chubut (Patagonia Argentina). Los tipos morfológicos descriptos pertenecen a las siguientes familias:
Alicia Forcone   +2 more
doaj  

Flora da Usina São José, Igarassu, Pernambuco: Polygalaceae

open access: yesRodriguésia
Resumo Polygalaceae é amplamente distribuída nas regiões tropicais e temperadas. Apresenta aproximadamente 1.300 espécies, com 197 ocorrentes no Brasil. Para os fragmentos de floresta atlântica estudados na área da Usina São José, em Igarassu, Pernambuco
Débora Maria Cavalcanti Ferreira   +2 more
doaj   +1 more source

Noticias botánicas colombianas, III: Especies nuevas y críticas

open access: yesCaldasia, 1944
Calliandra Uribei Killip & Dugand, nom. nov. / Mimosa Coroncoro Killip & Dugand, sp.. nov. / Bulnesia Carrapo Killip & Dugand, sp, nov. / Bredemeyera mollis (Tr. & Pl.) Dugand, comb. nov.
Dugand Armando
doaj  

Monnina macbridei Chodat (Polygalaceae): nueva especie para la flora de Chile

open access: yesGayana: Botanica
Se describe Monnina macbridei Chodat (Polygalaceae) como adición a la flora de Chile, especie anteriormente considerada endémica de Perú. Se entregan antecedentes sobre su distribución y hábitat, se incluyen ilustraciones, fotografías de las plantas en ...
Mélica Muñoz-Schick   +2 more
doaj  

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