Results 111 to 120 of about 356 (144)

Diversidade taxonômica e padrões de distribuição geográfica em Picramnia (Simaroubaceae) no Brasil [PDF]

open access: yesActa Botanica Brasilica, 1990
O gênero neotropical Picramnio Sw., tem 19 espécies no Brasil, das quais 12 são exclusivamente brasileiras. Os principais padrões de variação e distribuições geográfica e ecológica desses taxa, permitem o reconhecimento de algumas categorias de espécies: espécies monotípicas taxonómicamente isoladas, pares ou grupos de espécies muito relacionadas ...
José Rubens Pirani
exaly   +5 more sources
Some of the next articles are maybe not open access.

Cytotoxic Anthraquinone Derivatives from Picramnia antidesma

Planta Medica, 2002
Activity-guided investigation of crude extracts prepared from the root bark of Picramnia antidesma, a medicinal plant long used for the treatment of malaria in tropical areas of the Americas, when tested on KB cells led to the isolation of a new compound, 10-epi-uveoside, from a cytotoxic fraction containing a rich mixture of anthrone glycosides.
Rogelio Pereda-Miranda
exaly   +3 more sources

A conspectus of Mexican and Central American Picramnia (Simaroubaceae)

Brittonia, 1988
A complete checklist with synonymy and notes is provided for the Mexican and Central American species ofPicramnia. A key to all taxa of the region is included. Four new taxa (Picramnia guerrerensis, P. hirsuta, P. deflexa, andP. antidesma subsp.nicaraguensis) are described and illustrated, and a new combination (Picramnia antidesma subsp.fessonia) is ...
William Wayt Thomas
exaly   +2 more sources

Ueber das Fett von Picramnia Lindeniana [PDF]

open access: yesChemische Revue über Die Fett- Und Harz-Industrie, 1912
n ...
exaly   +3 more sources

A new species of Picramnia (Simaroubaceae) from Amazonian Peru

Brittonia, 1990
A new and rare species,Picramnia bullata, is described, illustrated, and compared to its closest relatives It is unique in its hirsute pubescence, numerous, elongate, bullate leaflets, and long, pendent, unbranched inflorescences.
William Wayt Thomas
exaly   +2 more sources

Casabitoa perfae (Euphorbiaceae)—a new synonym of Picramnia dictyoneura (Simaroubaceae)

Brittonia, 1994
Casabitoa perfae Alain (Euphorbiaceae) was rediscovered in Alto de Casabito, Cordillera Central, Dominican Republic and was found to be identical withPicramnia dictyoneura (Urban) Urban (Simaroubaceae).
Thomas A Zanoni
exaly   +2 more sources

Das Fett der Samen von Picramnia Sow

Recueil Des Travaux Chimiques Des Pays-Bas, 1933
Alph Steger
exaly   +2 more sources

An anthrone from Picramnia antidesma

Phytochemistry, 1998
Abstract A new chrysophanol anthrone C-glycoside, named uveoside and four known compounds were isolated and identified from the chloroform extract of roots from Picramnia antidesma .
Maria Del R Hernandez-Medel   +3 more
openaire   +1 more source

Mayoside, an oxanthrone from Picramnia hirsuta

Phytochemistry, 1996
A new oxanthrone named mayoside was isolated from the roots of Picramnia hirsuta and the structure established by X-ray diffraction.
Maria del R. Hernandez-Medel   +3 more
openaire   +1 more source

Diastereomeric C-glycosyloxanthrones from picramnia antidesma

Phytochemistry, 1999
Nine compounds were isolated and identified from the stem of Picramnia antidesma. Two of the isolated compounds: mayoside and saroside, which is new, are diastereoisomeric oxanthrones. The structure of saroside has been obtained on the basis of spectroscopic evidence.
Maria Del R Hernandez-Medel   +5 more
exaly   +2 more sources

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