32 FAMILIAR WILD FLOWERS. 



yellow or straw-colour, sometimes a light greenish-yellow ; 

 they grow in pairs, all facing one way, and form lateral 

 and terminal one-sided racemes. As the leaves grow in 

 pairs and the lateral flowering stems spring from their 

 axils, these also are in pairs. The terminal flowering 

 stem is about as long again ordinarily as those that spring 

 laterally below it. Each individual has, at the point where 

 it springs from the general stem, a floral-leaf or bract, small 

 and simple in character. The calyx is tubular, bulging or 

 gibbous at the base ; the upper tooth being large and con- 

 spicuous, and the four lower ones much smaller. The corolla 

 is monopetalous and widely opened, its slender tube being 

 about as long again as the calyx. The four stamens have 

 yellow anthers, and very noticeable purple and hairy fila- 

 ments. The plant flowers in July, August, and September. 



