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PLATE XV[. LETTER XIX. 
ENNEANDRIA HEXAGTNIA. 
Fig. 1. Butomus umbellatus. Flowering 
Rush. 
a The flower of six petals. 
b Th e nine stamens. 
c The six capsules. 
DECANDRIA MONOGYNIA. 
Fig. 2. Dictamnus albus. Fraxinella . 
a The flower, with a corolla of five spread¬ 
ing petals. 
b The five -leaved calyx, with the capsules, 
c A single filament, with its glandules, 
