Barkley, Theodore M. Division of Biology, Kansas State University, Manhattan, Kansas.
An order of flowering plants, division Magnoliophyta (Angiospermae), in the subclass Hamamelidae of the class Magnoliopsida (dicotyledons). The order consists of a single family with but one genus, Daphniphyllum, containing about 35 species. All are dioecious trees or shrubs native to eastern Asia and the Malay region. The plants produce a unique type of alkaloid (daphniphylline group); they often accumulate aluminum and sometimes produce iridoid compounds. The wood has vessels with scalariform perforations. The leaves are simple and entire, alternate or sometimes closely clustered at the ends of the branches. The flowers are small and inconspicuous, unisexual, regular, and hypogynous. Usually there are 2–6 sepals, or sometimes the sepals are absent; petals are lacking. The pollen is triaperturate, and the pistil has 2(–4) united carpels. Daphniphyllum has sometimes been included in the Euphorbiales of the subclass Rosidae, but structural details such as the very tiny embryo make it highly aberrant there. See also: Hamamelidae; Magnoliopsida; Plant kingdom
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Its dedicated editorial team is led by Sagan Award winner John Rennie. Contributors include more than 9000 highly qualified scientists and 39 Nobel Prize winners.
MORE THAN 8500 articles and Research Reviews covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 17,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information