Kalidium juniperinum Sukhor. et Lomon. is described as a species new to science. It similar K. foliatum in having short leaf blade but differs by the presence of numerous slender, prostrate, or ascending stems forming mats vs. stout main upright stem; acuminate bracts slightly exceeding flower cyme obtuse equal cyme; exserted pericarp looking like bulge on one-seeded diaspore not elevated top d...

In West Africa and Nigeria in particular, many virgin plants are still waiting to be evaluated for their medicinal importance. Claims of plants with folk medicinal applications need to be evaluated and verified. Gomphrena celosioides (family - Amaranthaceae) is a weed grown in lawns and the biological activity of the extract had earlier been established. In the present study, the plant was coll...

This study aimed to characterize the structure of the herb stratum in relation to light availability in the Submontane Atlantic Rain Forest at the Carlos Botelho State Park, SP, Brazil. Fortyone 10 x10 m plots were established under the closed canopy (18 plots), small and medium canopy gaps (11) and large canopy gaps dominated by Guadua tagoara (Ness) Kunth (12). Inside each plot, the line inte...

Food insecurity is a major issue in current scenario where a large section of mankind is at risk of insufficient diet. As food productivity has its limits, the prospecting of unutilized or underutilized flora as food candidates is collectively recognized as a sustainable option. In the past decade, a number of obscure plants have been identified to be rich in dietary components and deemed fit f...

C(4) photosynthesis is a fascinating example of parallel evolution of a complex trait involving multiple genetic, biochemical and anatomical changes. It is seen as an adaptation to deleteriously high levels of photorespiration. The current scenario for C(4) evolution inferred from grasses is that it originated subsequent to the Oligocene decline in CO(2) levels, is promoted in open habitats, ac...

Wallace Ribeiro Correa1,2, Alvaro Jose Hernandez Tasco1*, Jane VN Marinho1, Aislan CRF Pascoal1, Joao Ernesto de Carvalho3, Maria Salete Marchioretto4 and Marcos Jose Salvador1 1Institute of Biology, Department of Plant Biology, PPG-BTPB, University of Campinas (UNICAMP), 13083-970, Campinas, SP, Brazil 2Federal Institute of Education, Science and Technology, South of Minas Gerais, Praça Tirade...

An aeropalynological study was carried out in the atmosphere of Estepona, a very popular tourist resort situated in the "Costa del Sol", (southern Spain) based on the data obtained during a three year air-monitoring programme (March 1995 to March 1998) using a volumetric pollen trap. The 34 taxa that reached a 10-day mean air pollen concentration equal to or greater than 1 grain of pollen/m(3) ...