PERSONATE. 



527 





2,000 species ; chiefly from the Temp. OFFICINAL : Digitalis purpurea (the 

 leaves; Europe), a poisonous plant. Verbascuni thapsns and thapsiforme, 

 Veronica qfficinalis (" Herha V."), Gratiola officinalis ("Herba") have medicinal 

 uses. The whole of the Sorophulariaceffl are more or less suspicious, if not 

 actually poisonous, and none serve as food. Many are ORNAMENTAL PLANTS : 

 Mimulus luteua (N. America), Paitlownia imperial^ (the only species; in Japan ; 

 a tree), Antirrhinum vulgare (S. Eur.), Linaria, PenMemon, Veronica, Calceolaria 

 (Peru, Chili, etc.). 



k 



FIG. 569. Leaf of Utricularia vidgaris, with, bladder. Median longitudinal section 

 through a bladder containing a Cyclops. At a a hair of the upper-lip, at i 2 bristles of the 

 under-lip of the entrance (a, b) ; in the latter are placed 4 bristles h ; Ic stalk of the bladder, 

 in which is seen a vascular bundle. (After Cohn.) 



Order 4. Utriculariaceae. To this order belong only per- 

 ennial, insectivorous, aquatic, and marsh-plants (200 species) with a 

 more or less characteristic appearance. They differ from the 

 Scroplmlariacese, especially in having 2 stamens (the anterior) 

 and a unilocular ovary, with free, central placenta (like that of the 



