Serophularia.] LVI. SCROPHULARINE^. 331 



3. S. Scorodonia, Linn. (fig. 744).' _ Balm-leaved S. Very nearly 

 allied to S. aquatica, in all essential characters, and distinguished 

 chiefly by its downy, wrinkled leaves, and by the panicle more leafy at 

 its base. It is also usually a rather smaller plant, and the angles of the 

 stem are never expanded into wings, and sometimes scarcely perceptible. 



A west European species extending southwards to Madeira, and 

 northwards to Jersey, the extreme south-west of England, and Kerry 

 in Ireland. Fl. summer. 



4. S. vernalis, Linn. (fig. 745). Yellow S. A hairy perennial, very 

 different in aspect from the three preceding species, and not near so 

 coarse. Stems seldom 2 feet high ; the leaves nearly orbicular, cordate 

 at the base, coarsely toothed, and of a light green colour. Peduncles 

 almost all axillary, bearing a small cyme of yellow flowers; the 4 

 upper lobes of the corolla nearly of equal size, without any scale or 

 barren stamen inside ; the lowest lobe rather larger. Stamens longer 

 than the tube of the corolla. 



On roadsides, and waste or stony places, in the hilly districts of 

 Europe, extending from France to the Caucasus. Occasionally found 

 in England, but introduced. Fl. tpring. 



V. MIMULUS. MIMULUS. 



Herbs, with opposite leaves, and yellow, purple, or pink flowers, 

 growing singly on axillary peduncles. Calyx tubular, with 5 prominent 

 angles, and 5 short teeth. Corolla with a broad tube, and 5 flat lobes 

 arranged in 2 lips ; the upper one 2-lobed and sometimes erect ; the 

 lower one spreading and 3-lobed, the central lobe often notched. 

 Stamens 4. Capsule opening in 2 valves in the middle of the cells. 



An American genus, which, besides the species now naturalised in 

 Europe, comprises the Musk Mimulus and some others occasionally 

 cultivated in our gardens. 



1. M. luteus, Willd. (fig. 746). Yellow Mimulus.A perennial, with 

 a shortly creeping rootstock, and erect or ascending stems, either 

 glabrous or slightly downy, seldom above a foot high. Leaves ovate, 

 coarsely toothed, glabrous. Peduncles 2 inches long or more, bearing 

 a showy yellow flower, above an inch long, usually marked inside with 

 several small purple spots at the mouth of the tube, and sometimes 

 with a large purple- red or pink spot upon each lobe. 



On the banks of streams, and in moist, shady places, in north-western 

 America and Chili; long cultivated in our flower-gardens, and now 

 naturalised in boggy places in many parts of Britain. Fl. all tummcr. 



VI. LIMOSELLA. LIMOSEL. 



Small, tufted or floating annuals ; the leaves and minute flowers 

 mostly radical. Calyx 5-toothed or lobed. Corolla regular, campanu- 

 late, 5-lobed. Stamens 4. Anthers 1 -celled. Capsule globular, with 

 a very thin pericarp, scarcely dehiscent. 



Besides our European species the genus comprises but very few from 

 southern Africa and Asia. 



1. L. aquatica, Linn. (fig. 747). Common Limosel.A. glabrou* 



