Extinct Plants

Catatonia: extinct, lost, or forgotten?

Catatonia is a neuropsychiatric syndrome that occurs in some primary psychiatric disorders (e.g., schizophrenia, mood disorders), or due to general medical conditions (e.g., neurological disorders, drug poisoning, metabolic disorders) (1). Although it is uncommon, but if it goes unrecognized in medical and surgical units (2), it can increase morbidity and mortality. Moreover, making a connectio...

Springs and wire plants: anachronistic defences against Madagascar's extinct elephant birds.

The extinction of large vertebrates in the last few millennia has left a legacy of evolutionary anachronisms. Among these are plant structural defences that persist long after the extinction of the browsers. A peculiar, and controversial, example is a suite of traits common in divaricate (wide-angled branching) plants from New Zealand. Divaricate architecture has been interpreted as an adaptive...

Extinct and Extirpated Plants from Oregon By JIMMY KAGAN and SUSAN VRILAKAS

Oregon is one of the most diverse states in the U.S., containing between six and ten nationally recognized ecoregions, depending on various ecoregion classifications. The state includes habitats which range from the moist and mild coast redwood forests of Curry County to the extremely dry playas of the Alvord Desert. Elevations range from coastal salt marshes at sea level, to alpine peaks over ...

Extinct and Extinct in the Wild Amphibian Species

Rheumatoid vasculitis: becoming extinct?

BACKGROUND Systemic rheumatoid vasculitis (SRV) is a relatively rare complication of RA. The incidence of SRV appeared to increase during the 1970s and 1980s from 6.0 to 12.5/million. During the 1990s there have been major changes in the treatment of RA, with more aggressive control of inflammation. Our aim was to study the epidemiology of SRV in a stable, well-defined population over a 15-yr p...