The Dilleniidae
Family Overview - The Theales
Clusiaceae (Guttiferae) - the St. John's Wort Family

Diversity:  A family of 50 genera and over 1,200 species of herbs, shrubs, and trees with two subfamilies, the Clusioideae and Hypericoideae with the latter often treated as a distinct family (Hypericaceae).

Distribution:  Broadly distributed but elements of the Hypericoideae more common North temperate areas and the typical subfamily - Clusioideae - centered in the tropics.  Two genera, 22 species isn the Texas flora.

Floral structure:

clu - ff

Significant features:  With very few exceptions plants of the Clusiaceae (s. lat.) show opposite, simple, and entire leaves and the numerous stamens positioned in fascicles or clusters.
 

hypericum hypericum flr
Hypericum - with fascicled stamens Hypericum - another species with similar androecium - from the  University of Hawaii Hypericum - opposite, entire and - in this case - sessile leave


magosteen aril   The mangosteen (Garcinia mangostana L.) shows a structure common to taxa of subfamily Clusioideae, an aril ("a pulpy or fleshy appendage, outgrouth or outer covering of a seed - often derived from the funiculus") which is the only part consumed in this "best of tropical fruits".
 



More information on the Clusiaceae
(or Hypericaceae or Guttiferae)


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last updated by MDR 10-21-2010  fixed broken Mangosteen links.