236 Menyanthaceae 



with a hollow deflexed or descending spur 

 about half the length of the corolla. 



In moist places and shaded slopes through- 

 out the Rockies ; a rather frequent but incon- 

 spicuous plant owing to its green colour; 

 flowering in July. 



MENYANTHACEAE 

 Buckbean Family 



In our species a smooth marsh herb, with 

 creeping rootstock, long-petioled, 3-foliate 

 leaves and white or purplish flowers, in 

 racemes on long lateral scapes. 



Menyanthes Creeping rootstocks sometimes 

 trifoliata L. a foot long marked by the scars 



Buckbean. o f k ases Q f f ormer petioles. 



Leaves 3-foliate, petioles sheathing at the 

 base, 2-10 inches long; leaflets oblong or 

 obovate, entire, obtuse at the apex, nar- 

 rowed to the sessile base, ij~3 inches long. 

 Flowers half an inch long, pure white or 

 purplish in io-20-flowered racemes on 



