According to recent taxonomic treatments, up 13 Nymphoides species exist in eastern Asia, with some purported be narrowly endemic. However, these treatments have largely covered rather limited geographic areas, whereas the genus can found worldwide. Inorder evaluate global distinctness of currently accepted we quantitatively examined their distinguishing morphological characters using informati...

—Studies on breeding biology in Neotropical birds are crucial for understanding different aspects of their life histories and also for their conservation. We describe the nesting biology of the Red-crested Cardinal (Paroaria coronata) in central Argentina, a common suboscine that inhabits south temperate forests. We monitored 367 nests from October to February 2005–2008. Nest initiation followe...

Previous work in this laboratory (20) showed that germ tubes of Puccinia coronata uredospores would form structures in vitro resembling those found in infected host plants (18). This so-called vesicle formation occurred on Difco gelatin in the pH range of 6.2 to 6.9 on addition of 14 to 22 X 10-5 M Zn. Under these conditions germ tube length was reduced, and in some cases the percentage germina...