How are Obregonia and  Trichodiadema different from each other?
Obregonia Obregonia, the artichoke cactus, is a genus of cacti with a single species, Obregonia denegrii. The species is endemic to the state of Tamaulipas in Mexico.
Tolypocladium Tolypocladium is a genus of fungi within the family Ophiocordycipitaceae. It includes species that are parasites of other fungi, insect pathogens, rotifer pathogens and soil inhabiting species with uncertain ecological roles. "Tolypocladium" was originally circusmcribed as a genus containing anamorphic fungi. It was later determined that some "Cordyceps"-like teleomorphic fungi were the teleomorphs of "Tolypocladium" species. These species were considered to belong in the genus "Cordyceps" until molecular phylogenetics studies found these species to be more closely related to "Ophiocordyceps" and were considered to belong in that genus before they were transferred to the new genus "Elaphocordyceps" by Sung and colleagues in 2007. However, under the ICN's 2011 "one fungus, one name" principle, fungi can not have different names for their anamorphic and teleomorphic stages if they are found to be the same taxon. Quandt and colleagues formally synonymized "Tolypocladium" and "Elaphocordyceps" in 2014. Quandt and colleagues also synonymized the anamorphic genus "Chaunopycnis" with "Tolypocladium". The immunosuppressant drug ciclosporin was originally isolated from "Tolypocladium inflatum", and has since been found in other species of "Tolypocladium", some of which were formerly placed in "Chaunopycnis".