TWO NEW SPECIES AND TWO NEW VARIETIES OF COLUMNEA (GESNERIACEAE)

In this paper two new species of Gesneriaceae (genus Columnea) are described and illustrated. Columnea chocoensis is distributed in the Colombian departments of Chocó and Valle del Cauca, while its variety, C. chocoensis var. altaquerensis is restricted to the Department of Nariño, Colombia. Columnea stilesiana was found in La Serranía de Los Paraguas located in the Cordillera Occidental between the Chocó and Valle del Cauca Departments in Colombia. Further, Columnea archidonae is here considered a variety of C. ericae; Columnea ericae var. archidonae is distributed in Colombia and Ecuador, in forests at elevations higher than those in which the typical variety is found

Una nueva especie de columnea (gesneriaceae) del norte de los Andes

A new species of Columnea L. belonging to section Ortholoma (Gesneriaceae) from the Andean Region of Colombia and Ecuador is described.Se describe e ilustra una nueva especie de Columnea L. (Gesneriaceae) perteneciente a la sección Ortholoma. La nueva especie proviene de la región andina de Colombia (Caquetá y Cauca) y Ecuador (Napo)

U.S. Billion-ton Update: Biomass Supply for a Bioenergy and Bioproducts Industry

The Report, Biomass as Feedstock for a Bioenergy and Bioproducts Industry: The Technical Feasibility of a Billion-Ton Annual Supply (generally referred to as the Billion-Ton Study or 2005 BTS), was an estimate of “potential” biomass within the contiguous United States based on numerous assumptions about current and future inventory and production capacity, availability, and technology. In the 2005 BTS, a strategic analysis was undertaken to determine if U.S. agriculture and forest resources have the capability to potentially produce at least one billion dry tons of biomass annually, in a sustainable manner—enough to displace approximately 30% of the country’s present petroleum consumption. To ensure reasonable confidence in the study results, an effort was made to use relatively conservative assumptions. However, for both agriculture and forestry, the resource potential was not restricted by price. That is, all identified biomass was potentially available, even though some potential feedstock would more than likely be too expensive to actually be economically available. In addition to updating the 2005 study, this report attempts to address a number of its shortcoming

Novae Gesneriaceae Neotropicarum V. Four New Species and Two New Combinations in \u3cem\u3eColumnea\u3c/em\u3e from South America

A monographic study of sections Pentadenia and Stygnanthe of Columnea (Gesneriaceae) has revealed four species new to science and two new combinations. These species are described here and include C. atahualpae and C. hypocyrtantha of section Pentadenia, and C. manabiana, C. suffruticosa, C. ultraviolacea, and C. xiphoidea of section Stygnanthe

Novae Gesneriaceae Neotropicarum XVI: Pearcea pileifolia, a New Species of Gesneriaceae from South America

Volume: 19Start Page: 439End Page: 44

Una nueva especie de Besleria (Gesneriaceae) para Colombia

A new species of Besleria (Gesneriaceae) from Colombia, is described and illustrated.  Se describe e ilustra una nueva especie de Besleria para Colombia.</p

Una nueva especie de besleria (gesneriaceae) para Colombia

A new species of Besleria (Gesneriaceae) from Colombia, is described and illustrated.Se describe e ilustra una nueva especie de Besleria para Colombia

Los géneros de gesneriáceas de Colombia

The family Gesneriaceae is represented in Colombia by 32 genera and approximately 400 speeies of shrubs, subshrubs, lianas, or herbs, terrestrial or epiphytic. Most species of Gesneriaceae are found in montane rain or cloud forests, and low-elevation cloud forests are particularly rich, The most species-rich areas in Colombia are the Pacific coastal forests and in the central Andes of Antioquia and Risaralda. In contrast, relatively few species occur in the Amazon and Orinoco basins (except along the foothills of the Andes), and along the mostly dry Caribbean coast. Approximately 75% of the Colombian species belong to groups with no modern treatments. Additional new species as well as one new genus currently await description, and therefore the species numbers estimated for many of the larger genera are tentative. A key to the genera is presented, along with a brief discussion of each genus, as known in Colombia.La familia Gesneriaceae se encuentra representada en Colombia por 32 géneros y por aproximadamente 400 especies de hierbas, arbustos, subarbustos o lianas, terrestres o epífitas. La mayoría de las especies se encuentran en bosques montanos o en bosques de neblina, siendo los de baja altitud especialmente ricos en ellas. Los bosques con más especies se encuentran en las áreas de la costa Pacífica y en la Cordillera Central en Antioquia y Risaralda. En contraste, se encuentran relativamente pocas especies en las cuencas del Amazonas y el Orinoco, así como a lo largo de la costa Caribe, que presenta condiciones climáticas mucho más secas. Aproximadamente el 75% de las especies colombianas pertenecen a grupos sin tratamientos taxonómicos modernos. En el momento actual el número de especies estimado para varios de los géneros más grandes es tentativo, pues nuevas especies han aparecido y un género nuevo está en espera de ser descrito. Se presenta una clave para los géneros conocidos en Colombia, junto con una breve discusión de cada uno