Plants

The Columbia Encyclopedia, 6th ed. A Dictionary of Plant Sciences Further reading

logania

The Columbia Encyclopedia, 6th ed. | 2011 | Copyright

logania , common name for the Loganiaceae, a family of herbs, shrubs, and trees of warmer climates, including many woody climbing species. Some plants of this family are grown in the United States as ornamentals, and several are sources of medicines and poisons. The former include introduced species of Logania (native to New Zealand and Australia) and several species of buddleia, or butterfly bush (genus Buddleia, sometimes considered a separate family). Two species of buddleia are native to Arizona and California. Carolina yellow jessamine, or jasmine ( Gelsemium sempervirens ), also called false jasmine, is the state flower of South Carolina. It is often grown as a porch vine in the South, and its dried roots were used medicinally as an antispasmodic and sedative. The strong poison strychnine , which also affects the central nervous system, comes from the seeds of several Strychnos species ( nux-vomica native to S Asia, is the commercial source). Several tropical American species are ingredients of curare arrow poisons, which have yielded important medicines. Logania is classified in the division Magnoliophyta , class Magnoliopsida, order Gentianales.

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Logania

A Dictionary of Plant Sciences | 1998 | | Copyright

Logania (family Loganiaceae, *tribe Loganieae) A genus of small trees and shrubs that have opposite, entire leaves, phloem tubes scattered through the xylem, and superficial cork development. The flowers are regular in terminal cymes, the fruit a capsule or berry. The seeds have a fleshy endosperm. There are 15 species, restricted to Australia, New Zealand, and New Caledonia.

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MICHAEL ALLABY. "Logania." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. 27 May. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "Logania." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. (May 27, 2012). http://www.encyclopedia.com/doc/1O7-Logania.html

MICHAEL ALLABY. "Logania." A Dictionary of Plant Sciences. 1998. Retrieved May 27, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O7-Logania.html

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