462 SCROPHULARIACEJS. 



LJMOSELLA AQUATiCA (Common Mud-wort). 



minute, pale rose-coloured or white flowers, which are 

 overtopped by the leaves. Fl. July, August. Annual. 



6. MELAMPYRUM (Cow-wheat). 



1. M.prateme (Common Yellow Cow-wheat). Leaves, 

 in distant pairs, narrow, tapering, smooth ; flowers 

 axillary, in pairs, all turning one way ; corolla four 

 times as long as the calyx, lower lip longer than the 

 upper. Woods, common. A slender plant, about a 

 foot high, with opposite pairs of straggling branches 

 below, very narrow leaves, and long-tubed, yellaw 

 flowers. Cows are said to be fond of it, and, according 

 to Linnaeus, the best and yellowest butter is made where 

 it abounds. The name pratense (growing in meadows) 

 was given to it erroneously, as it is never found in such 

 situations. Fl. June A.ugust. Annual. 



* M. sylvdticum is a smaller species, occurring in 

 mountainous woods, but not common. The corolla is 

 only twice as long as the calyx, and the lips are equal. 



2. M. arvense (Purple Cow-wheat). Flowers in ob- 

 long spikes ; bracts leaf-like, very much cut and toothed. 



