A synopsis for the genus Commelina in the state of Rio de Janeiro, Brazil, is presented here, including a new species, ten new synonyms, five designated lectotypes, two designated epitypes and an excluded name. Commelina huntii, a new species, is remarkable due to the combination of rusty to rusty-brown hairs at the margin of its leaf-sheaths, connate spathes, white flowers with auriculate medi...

Duranta plumeiri is an ornamental plant with 30 to 36 species found throughout the world. The plants of D. plumeiri were found to be affected by chlorotic spots and mosaic. Studies on variations in expression of symptoms on different hosts, and confirmation by electron microscopy were done to establish the viral nature of the disease in D. plumeiri plants.

The suppression of Meloidogyne incognita by marigolds differed among six marigold cultivars and five soil temperatures. Tagetes signata (syn. T. tenuifolia) cv. Tangerine Gem and the Tagetes hybrid Polynema allowed reproduction and root galling when grown at 30 degrees C, and should not be used for control of M. incognita at temperatures close to 30 degrees C. Tagetes patula cultivars Single Go...

Edible flowers are commonly used in human nutrition and their consumption has increased in recent years. The aim of this study was to ascertain the nutritional composition and the content and profile of phenolic compounds of three edible flowers, monks cress (Tropaeolum majus), marigold (Tagetes erecta) and paracress (Spilanthes oleracea), and to determine the relationship between the presence ...

Centella asiatica is one of the popular herbs used for inflammatory and neural conditions. Its differentiation from similar species is currently lacking. The aims of this study were to differentiate the three closely related Centella species using methods based on morphological characters, genetic biodiversity, phytochemical compositions and antioxidant activities. According to the morphologica...

Schoenoplectiella erecta subsp. raynalii (Cyperaceae) is recorded for the first time from India and Asia. This taxon was collected in Ossudu Bird Sanctuary, Villupuram district of Tamil Nadu, southern India. Detailed description including microscopic study glume nutlets with digital images, morphological characters, habitat, key characters between two subspecies are provided.

Hohenbergia is one the most diverse genera in Bahia state, and inhabits almost all regions of state. As a result ongoing studies on Bahia, Brazil, here we describe illustrate erecta, endemic to municipality Mucugê, at Chapada Diamantina. erecta differs from its morphologically related, H. catingae, by an elongated tubular rosette (vs short stem with crateriform rosette), once-branched cylindric...