Paola Pedraza-Peñalosa

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Four flavone C-glycosides, isoorientin (1), orientin (2), vitexin (3), and isovitexin (4), were isolated from the neotropical blueberry of Anthopterus wardii, a so-called "superfruit", using antioxidant activity-guided fractionation. A dose-response relationship of compounds 1-4 was determined for their anti-inflammatory activity against interleukin-8(More)
There are many neotropical blueberries, and recent studies have shown that some have even stronger antioxidant activity than the well-known edible North American blueberries. Antioxidant marker compounds were predicted by applying multivariate statistics to data from LC-TOF-MS analysis and antioxidant assays of 3 North American blueberry species (Vaccinium(More)
Edible blueberry species are well recognized for their potential health benefits. Ericaceae fruits including the North American highbush blueberry (Vaccinium corymbosum L.) and five less common edible blueberry relatives from the New World tropics, Anthopterus wardii Ball, Cavendishia grandifolia Hoerold, Macleania coccoloboides A. C. Smith, Sphyrospermum(More)
The blueberry tribe Vaccinieae (Ericaceae) is particularly diverse in South America and underwent extensive radiation in Colombia where many endemics occur. Recent fieldwork in Colombia has resulted in valuable additions to the phylogeny and as well in the discovery of morphologically noteworthy new species that need to be phylogenetically placed before(More)
The inventory of the vascular plants of one of the richest and least studied floras, the Andean and Chocó regions of northwestern Colombia, targets Las Orquídeas National Park. As a result of field trips to areas never before collected, several epiphytic and small terrestrial shrubs in the family Ericaceae have been discovered in the Park's humid forests.(More)
Three new endemic species are described and illustrated from the floristically diverse western mountain ranges of Colombia. Disterigma appendiculatum, D. hiatum, and D. verruculatum have interesting floral characters that are unique in the genus and in the Vaccinieae. These new morphological characters and the terminology adopted for bracteoles and staminal(More)
Eight new Ericaceae (Vaccinieae) from Bolivia and Peru are described, illustrated, and discussed: Orthaea madidiensis, Themistoclesia geniculata, Themistoclesia idiocalyx, Themistoclesia siranensis, Themistoclesia tunquiniensis, Themistoclesia woytkowskii, Thibaudia acacioides, and Thibaudia yungensis. Ocho nuevas especies de Ericaceae (Vaccinieae) de(More)
Three new species of Psammisia s.l. (Ericaceae: Vaccinieae) endemic to Colombia have been identified from collections of the Colombian Western Cordillera. They are Psammisia mateoi, Psammisia longirachis, and Psammisia glandulolaminata. Here the new species are described, discussed, and illustrated through line drawings and photographs of living plants.(More)
Three new species of Orthaea (Ericaceae: Vaccinieae) from the Andes of Colombia and Peru are described: Orthaea bullata, Orthaea carnosiflora, and Orthaea medusula. Their taxonomic affinities are discussed. Their diagnostic characters are illustrated through line drawings and photographs of living plants and ethanol-preserved specimens. Se describen tres(More)
Seven new species of Andean Vaccinium are described, illustrated, and briefly discussed. They are Vaccinium aristatum and Vaccinium saxatilis from Ecuador; Vaccinium youngii, Vaccinium ortizii, Vaccinium continuum, Vaccinium amazonicum, and Vaccinium urubambensis from Peru. Se describen, ilustran y discuten siete nuevas especies de Vaccinium de los Andes.(More)
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