Carlos Luigi Spegazzini

Carlos Luis Spegazzini, or Carlo Luigi Spegazzini, (20 April 1858 – 1 July 1926) was an Italian-Argentinian botanist and mycologist.

On the 1881/1882 expedition led by Giacomo Bove to explore Patagonia and Tierra del Fuego, the Italian Decio Vinciguerra was officially both zoologist and botanist, but in fact Spegazzini handled the botanical work. Spegazzini published about 100 scientific papers on vascular plants, describing around 1000 new taxa. He was a professor at the University of La Plata and Buenos Aires in Argentina, curator of the herbarium of the National Department of Agriculture, first head of the herbarium of Museo de la Plata, and founder of an arboretum and an institute of mycology in La Plata city.

In 1924 he edited the journal Revista Argentina de Botánica, but only four issues were published before his death.

In a 1924 Mycologia publication, William Murrill recounted his time visiting with Spegazzini, who was then 66 years old:

The standard author abbreviation Speg. is used to indicate this individual as the author when citing a botanical name. The International Plant Names Index has more than 2,700 records for plant names of which he is either the author, a co-author or involved in the basionym.

SPEG

SPEG complex locus, also known as SPEG, is a human gene.

Expression of this gene is thought to serve as a marker for differentiated vascular smooth muscle cells which may have a role in regulating growth and differentiation of this cell type. The encoded protein is highly similar to the corresponding rat and mouse proteins. Multiple alternatively spliced transcript variants have been found for this gene, but the full-length nature of only one variant has been defined.

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