As part of ongoing work on the Flora Southeastern United States (Weakley & Team 2022a) and related projects, as well for general floristic, conservation, scientific in eastern North America, it is essential to document taxonomic nomenclatural changes significant distribution records. Here we describe three new species (in Rhynchospora, Sabulina, Solidago), a section Trichostema), make combi...

out the proper measure of historical fame to all participants, the narrative may turn into a simple catalogue of names and dates. Both of these elements exist in The Historical Background of Chemistry. As Professor Leicester approaches the modern scene, he has space only to march his characters rapidly across the stage and off into the wings. Theory and theorists come in a somewhat bewildering ...

Patterns of common recolonization routes from glacial refugia to Central Europe during the Pleistocene are generalized to paradigms of postglacial recolonization in Europe. Recent studies indicate, however, that the actual phylogeographic history of many species might be more complex and cannot be simplified to generalized patterns. Burnet moths of the Zygaena transalpina complex represent a gr...

Defensive fluids obtained from the Garden Tiger, Scarlet Tiger and Burnet Moths and from the Monarch Butterfly and the Seven-Spot Ladybird Beetle, haemolymphs taken from the wasp, the Burying Beetle and the Rat Flea, and fluids from the eggs of the Garden Tiger, Gypsy Moth and Oak Eggar Moth were examined in the electron microscope after negative staining. Except for the ladybird all the defens...

The first isolations of B virus were made by Sabin and Wright (1), and independently by Gay and Holden (2), from the central nervous system of an investigator who developed a spreading, fatal infection with ascending myelitis after a bite on the hand from an apparently normal rhesus monkey. Gay and Holden called the agent W virus and thought it to be a highly neurotropic strain of herpes simple...

Leonard Hayflick [3] in the US during the early 1960s showed that normal populations of embryonic cells divide a finite number of times. He published his results as "The Limited In Vitro Lifetime of Human Diploid Cell Strains" in 1964. Hayflick performed the experiment with WI-38 fetal lung cells, named after the Wistar Institute, in Philadelphia, Pennsylvania, where Hayflick worked. Frank MacF...

Studies of susceptibility to bacteriophage have shown that polysaccharides associated with somatic bacterial antigens may inhibit the lytic action of bacteriophages upon susceptible homologous organisms. Levine and Frisch (1933 a,b) demonstrated this inhibitory effect with extracts from certain Salmonella and Shigella cultures. Burnet (1934) confirmed these findings; and Gough and Burnet (1934)...

In 1974 one of us attended a lecture on aging by the Nobel prize winning immunologist, Sir Macfarlane Burnet. Burnet indicated that oxidative stress was central to the aging process, and that interventions to ameliorate this process should prolong the human lifespan and diminish the incidence of age-related diseases, one of the most important of which is, of course, Alzheimer’s disease (AD). A ...