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BUTOMACEJl. 



1. BUTOMUS (Flowering Kush). Stamens 9 ; carpels 

 6. (JSTame from the Greek bous, an ox, and temno, to 

 cut ; because cattle feeding on the leaves are liable to 

 cut their mouths.) 



BtfroMus UMBELLATUS (Flovwring RusJi). 



1. BUTOMUS (Flowering Rush). 



1. B. umbellatus (Flowering Eush). The only British 

 species. A tall, aquatic plant, growing in stagnant water 

 and slow rivers, not uncommon. The leaves are sword- 

 shaped, 2 4 feet long, and spring all from the root ; 



