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A new species of Telipogon (Orchidaceae, Oncidiinae) is described based on two collections found in the seasonally dry forests in Piura department, Peru. Telipogon mariae-luisae is morphologically similar to T. chachapoyensis, an allopatric species recorded in the Amazonas department, from which it differs by floral dimensions, labellum pilosity, and number of petal veins. The new species is described, and illustrations, photographs, discussion, plus a key to morphologically related species are provided. [ABSTRACT FROM AUTHOR]

Aristida diego-santiagoii (Poaceae), a new species from southern Peru, is described and illustrated. A. diego-santiagoii is related to A. minutiflora due to the perennial life cycle, anthers longer than 2 mm, and laterally compressed lemma; it is distinguished by the longer, acute glumes, smaller ligule, and non-distichous growth. A complete description, a line illustration, and photographs of the new species are included, together with a key to related species with laterally compressed lemma. [ABSTRACT FROM AUTHOR]

Aristida pseudochiclayensis, a new species from Peru, we described and illustrated. The differences between this taxon with related species are presented in a key and a table. [ABSTRACT FROM AUTHOR]

Due to the growing global energy demand that continues to be sustained by fossil fuels, it is imperative to increase research directed at alternative energies, especially biofuels. Biodiesel from microalgae is a promising alternative because of its easy growth, fast biomass production and high fatty acid (FA) content, however, its high-cost production at industrial levels remains a constraint. To induce higher FA and biomass biosynthesis Nannochloropsis oculata, this work evaluated the effect of the phytohormone (FH) mixture 6-benzyl amino purine (BAP) and naphthalene acetic acid (NAA), coupled with a nitrogen (N) limitation on lipid and biomass synthesis in the microalga. In addition, a Box-Behnken design was used to determine the optimal concentrations of FH and N. This strategy increased the biomass 1.96- fold, and 2.11-fold the lipids. The optimum conditions were 0/20 ppm BAP/ANA and 25% N for 21 days of incubation. This approach can positively impact the biodiesel industry, higher productivity of lipids and biomass in microalgae will decrease the high costs of biodiesel production. [ABSTRACT FROM AUTHOR]

The present study was performed in the village of Cabrero, located in the district and province of Cajabamba, Department of Cajamarca. The objective was to know the most culturally important species of wild flora used by the inhabitans of the village of Cabrero. The methodology used was based on conducting informal (free listing and ethnobotanical walks) and semi-structured interviews. The significance cultural of the plants was stimated index Cultural Importance proposed by Tardío & Pardo-de-Santayana (2008). The registered 179 useful species grouped in 129 genera and 60 families, 267 vernacular names belonging to languages of introduced origin (47%), native (35%) and indeterminate (18%). The families with the highest number of species was Asteraceae (23%), followed by Poaceae (6%), Fabaceae (6%) and Lamiaceae (6%). The species were grouped into nine categories of use, being the Medicinal category which recorded the highest number of species (131) and use reports (2200 RU). The species with the greatest cultural importance were Rubus floribundus "zarza or mora", Myrcianthes discolor "uñico", Hesperomeles obtusifolia "huamasimba" and Alnus acuminata "aliso", these species are more valued by the local people. [ABSTRACT FROM AUTHOR]