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Pyrus

A Dictionary of Plant Sciences | 1998 | | Copyright

Pyrus (pears; family Rosaceae) A genus of deciduous, sometimes thorny trees and shrubs, that have simple leaves and flowers borne in umbel-like clusters. There are 5 sepals, 5 petals, 20–30 purple stamens, and 2–5 carpels fused together and with the receptacle, though the styles are separate. The flesh of the pear-shaped fruits contains numerous woody, grit-like cells, unlike that of apples (Malus). Many cultivars are grown for their fruits. There are about 20 species, occurring in northern temperate Eurasia.

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MICHAEL ALLABY. "Pyrus." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "Pyrus." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O7-Pyrus.html

MICHAEL ALLABY. "Pyrus." A Dictionary of Plant Sciences. 1998. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O7-Pyrus.html

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