Systematics of Harrisia (Cactaceae)
The genus Harrisia Britton (Cactaceae) comprises species of columnar cacti that are united by a unique seed morphology. The species range in form from prostrate shrubs to large trees and are native to South America and the Caribbean region. Harrisia is placed in an unresolved position within subtrib...
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Scholar Commons
2012
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| Online Access: | http://scholarcommons.usf.edu/etd/4044 http://scholarcommons.usf.edu/cgi/viewcontent.cgi?article=5240&context=etd |