Periodical literature

Periodical literature (also called a periodical publication or simply a periodical) is a published work that appears in a new edition on a regular schedule. The most familiar counter-examples are the newspaper, often published daily, or weekly. The most familiar example is the magazine, typically published weekly, monthly, or as a quarterly. Other examples are newsletters, literary magazines (literary journals), academic journals (including scientific journals), science magazines, and yearbooks.

Volumes and issues

These examples are typically published and referenced by volume and issue. "Volume" typically refers to the number of years the publication has been circulated, and "Issue" refers to how many times that periodical has been published during that year. For example, the April 2011 publication of a monthly magazine first published in 2002 would be listed as, "Volume 10, Issue 4." Roman numerals are sometimes used in reference to the Volume number.

When citing a work in a periodical, there are standardized formats such as The Chicago Manual of Style. In the latest edition of this style, a work with volume number 17 and issue number 3 may be written as follows:

Chamerion angustifolium

Chamerion angustifolium, commonly known as fireweed (mainly in North America), great willow-herb (some parts of Canada), or rosebay willowherb (mainly in Britain), is a perennial herbaceous plant in the willowherb family Onagraceae.

It is native throughout the temperate Northern Hemisphere, including large parts of the boreal forests.

This species has been placed in the genus Chamerion (sometimes, incorrectly, given as Chamaenerion) rather than Epilobium based on several morphological distinctions: spiral (rather than opposite or whorled) leaf arrangement; absence (rather than presence) of a hypanthium; subequal stamens (rather than stamens in two unequal whorls); zygomorphic (rather than actinomorphic) stamens and stigma. Under this taxonomic arrangement, Chamerion and Epilobium are monophyletic sister genera.

Two subspecies are recognized as valid:

Etymology

The species name angustifolium ('narrowleaved') is constructed from the Latin words angustus meaning 'narrow' and folium meaning 'leaved' or 'leaf'. It shares this name with other species of plant including Vaccinium angustifolium. The common British name, from the passing resemblance of the flowers to roses and the leaves to those of bay, goes back in print to Gerard's Herball of 1597.

Fireweed (disambiguation)

Fireweed (Epilobium angustifolium or Chamaenerion angustifolium) is a perennial herbaceous plant in the willowherb family (Onagraceae).

Fireweed may also refer to:

Plants

Other uses

Crassocephalum crepidioides

Crassocephalum crepidioides, also called ebolo, thickhead, redflower ragleaf, or fireweed, is an erect annual slightly succulent herb growing up to 180 cm tall. Its use is widespread in many tropical and subtropical regions, but is especially prominent in tropical Africa. Its fleshy, mucilaginous leaves and stems are eaten as a vegetable, and many parts of the plant have medical uses. However, the safety of internal use needs further research due to the presence of plant toxins.

Toxicity

Crassocephalum crepidioides contains the hepatotoxic and tumorigenic pyrrolizidine alkaloid, jacobine.

References