Peter Francis Stevens (born 1944) is a British

botanist Botany, also called plant science, is the branch of natural science and biology studying plants, especially Plant anatomy, their anatomy, Plant taxonomy, taxonomy, and Plant ecology, ecology. A botanist or plant scientist is a scientist who s ...

. He is a

researcher Research is creative and systematic work undertaken to increase the stock of knowledge. It involves the collection, organization, and analysis of evidence to increase understanding of a topic, characterized by a particular attentiveness to ...

at the

Missouri Botanical Garden The Missouri Botanical Garden is a botanical garden located at 4344 Shaw Boulevard in St. Louis, Missouri. It is also known informally as Shaw's Garden for founder and philanthropy, philanthropist Henry Shaw (philanthropist), Henry Shaw. I ...

and a professor of biology of the

University of Missouri–St. Louis The University of Missouri–St. Louis (UMSL) is a Public university, public research university in St. Louis, Missouri, United States. Established in 1963, it is the newest of the four universities in the University of Missouri System. Located ...

. He is a member of the

Angiosperm Phylogeny Group The Angiosperm Phylogeny Group (APG) is an informal international group of systematic botanists who collaborate to establish a consensus on the taxonomy of flowering plants (angiosperms) that reflects new knowledge about plant relationships disc ...

which created the

APG APG may refer to: * Aberdeen Proving Ground, a United States Army installation in Aberdeen, Maryland **Phillips Army Airfield (IATA code), the airfield of the above * Aboriginal Provisional Government, Indigenous Australian independence movement * ...

APG II The APG II system (Angiosperm Phylogeny Group II system) of plant classification is the second, now obsolete, version of a modern, mostly molecular-based, system of plant taxonomy that was published in April 2003 by the Angiosperm Phylogeny Gro ...

APG III The APG III system of flowering plant classification is the third version of a modern, mostly molecular-based, system of plant taxonomy being developed by the Angiosperm Phylogeny Group (APG). Published in 2009, it was superseded in 2016 by a fur ...

, and

APG IV The APG IV system of flowering plant classification is the fourth version of a modern, mostly molecular-based, system of plant taxonomy for flowering plants (angiosperms) being developed by the Angiosperm Phylogeny Group (APG). It was published ...

systems. He maintains a web site,

APweb The Angiosperm Phylogeny Website (or APweb) is a website that presents up-to-date research on the phylogeny and taxonomy of flowering plants (angiosperms) in what is intended to be a user-friendly way. The site is hosted by the Missouri Botanical ...

, hosted by the Missouri Botanical Garden, which has been regularly updated since 2001, and is a useful source for the latest research in angiosperm phylogeny which follows the APG approach. The standard author abbreviation P.F.Stevens is used to indicate P. F. Stevens as the author when

citing A citation is a reference to a source. More precisely, a citation is an abbreviated alphanumeric expression embedded in the body of an intellectual work that denotes an entry in the bibliographic references section of the work for the purpose o ...

botanical name A botanical name is a formal scientific name conforming to the ''International Code of Nomenclature for algae, fungi, and plants'' (ICN) and, if it concerns a plant cultigen, the additional cultivar or cultivar group, Group epithets must conform t ...

. He has named dozens of species, mostly in the families

Clusiaceae The Clusiaceae or Guttiferae Juss. (1789) (''nom. alt. et cons.'' = alternative and valid name) are a family (biology), family of plants including 13 genera and ca 750 species. Several former members of Clusiacae are now placed in Calophyllaceae ...

and

Ericaceae The Ericaceae () are a Family (biology), family of flowering plants, commonly known as the heath or heather family, found most commonly in acidic and infertile growing conditions. The family is large, with about 4,250 known species spread acros ...

, and he also described the genus ''

Romnalda ''Romnalda'' is a genus of monocotyledonous plants in the family Asparagaceae, subfamily Lomandroideae. (They have also been placed in the Xanthorrhoeaceae.) four formally named species are known and accepted by botanical science. The name ''Ro ...

'' (

Asparagaceae Asparagaceae (), known as the asparagus family, is a family of flowering plants, placed in the order Asparagales of the monocots. The family name is based on the edible garden asparagus, '' Asparagus officinalis''. This family includes both ...

References

External links

Peter F. Stevens (P.F.Stevens)
in

IPNI The International Plant Names Index (IPNI) describes itself as "a database of the names and associated basic bibliographical details of seed plants, ferns and lycophytes." Coverage of plant names is best at the rank of species and genus. It in ...

list of species described by Peter F. Stevens

Personal page of Peter F. Stevens
on

Angiosperm Phylogeny Website The Angiosperm Phylogeny Website (or APweb) is a website that presents up-to-date research on the phylogeny and taxonomy of flowering plants (angiosperms) in what is intended to be a user-friendly way. The site is hosted by the Missouri Botanical ...

{{DEFAULTSORT:Stevens, Peter F. 1944 births Living people 21st-century American botanists British taxonomists Botanists with author abbreviations University of Missouri–St. Louis people Missouri Botanical Garden people Angiosperm Phylogeny Group