PRIMROSE TRIBE. 



517 



Poor man's weather-glass. The colour of the flowers 

 occasionally varies to flesh-coloured, or white with a red 

 eye. A bright blue variety, which some botanists con- 

 sider a distinct species, is more unfrequent. Fl. June, 

 July. Annual. 



2. A. tenella (Bog Pimpernel). Stem creeping leaves 

 roundish, stalked, shorter than the flower-stalks. Boggy 

 ground and sides of rivulets, common. A beautiful 

 little plant with slender stems 4 6 inches long, small 

 leaves which are arranged in opposite pairs, and erect 

 rose-coloured flowers, larger than those of the Scarlet 

 Pimpernel, and more frequently having the lobes of the 

 corolla erect than expanded. 



LYSJMACH1A NUMMULAR1A 



