76 GENERA OF CLASS VII. HEPTANDRIA 



CHAP. X. 



OF THE SEVENTH CLASS, HEPTANDRIA. 



THIS class consists of such plants as bear bisexual flowers, 

 furnished with seven stamina. The orders of this class are four, 

 viz. 



Order 1. Monogynia, comprehending such plants as have but 

 one style. This order contains eleven genera, falling under these. 

 divisions : 1. Flowers complete, which contains six genera, viz. 

 Trientalis (chickiveed, winter-green) .... Disandra ... iEscuLus 

 ( horse-chestnut) . . . Petrocarya . . .Pancovia . . . Jonesi a. 2. Flowers 

 incomplete, which contains Jive genera; Pisonia...Petiveria... . 

 Dracontium...Calla...Houttuynia. 



Order 2. Digynia, comprehending such plants as have two 

 styles. This order contains but one genus, viz. Limeum. 



Order 3. Tetragynia, comprehending such plants as have four 

 styles. Of this order there are but two genera, viz. Saururus 

 (lizard's taz7j...and Astranthus. 



Order 4. Heptagynia, containing such plants as have seven 

 styles. Of this order there is but one genus, viz. Septas. 



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