598 



THE BROOMRAPE FAMILY. 



2. Clove-scented Broomrape. Orobanche caryophyllacea, 



Sm. (Fig. 712.) 

 (Eng. Bot. Suppl. t. 2639.) 



The colour of the plant and size of the 

 flowers are those of the greater J5., but 

 the stem is seldom above 8 or 9 inches 

 high ; the flowers are much fewer, and 

 further apart ; the tube of the corolla 

 is not quite so broad; the upper lobes 

 scarcely spreading, and the lower ones 

 nearly equal, and the stamens more 

 hairy at the base. The flowers are 

 usually sweet-scented. 



Said to grow exclusively on Galiums ; 

 common on the continent of Europe, 

 extending across the whole of Asia. In 

 Britain limited hitherto to a very few of 

 the southern counties of Eogland. FL 

 early summer. 



Fig. 712. 



3. Bed Broomrape. Orobanche rubra, Sm. (Fig. 713.) 

 (Eng. Bot. t. 1786, not good.) 



A rather smaller plant than the clove- 

 scented B., which it resembles in the 

 shape of the flowers, but these are nearer 

 the size of those of the lesser _Z?., and the 

 whole plant assumes a very red-brown 

 colour. Calyx usually divided into 2 en- 

 tire sepals with narrow points, but these 

 are sometimes again divided, although 

 very unequally, or united in front at 

 the base, as in the lesser JB. and other 

 species. 



On the roots of Thyme, in central and 

 southern Europe. In Britain, only on 

 the basalt and trap-rocks in Scotland and 

 Ireland. FL summer. 



Fig. 713. 



