SPECIES AND VARIETIES. 191 



H. vulgare : stems diffuse, much branched, with procum- 

 bent or ascending flowering branches, from a few inches to 

 nearly a foot long ; leaves mostly oblong, but varying from 

 ovate to lanceolate, glabrous or slightly hairy, more or less 

 hoary beneath ; racemes loose ; petals broadly spreading, bright 

 yellow. Rock Rose. Dry hilly pastures. Fl. July, August. 



Var. surrejanum : flowers much smaller ; petals narrow, 

 deeply cut. Supposed to have been originally found near 

 Croydon in Surrey. 



(17) Reseda. MIGNONETTE. 



* Leaves undivided. 



R. Luteola : annual or biennial ; stems 1-2 feet high, erect, 

 glabrous ; leaves linear or lanceolate, 23 inches long, slightly 

 waved on the edges ; flowers yellowish green, in long, stiff 

 spikes ; sepals four ; petals 4-5, very unequal, the one or two 

 lower ones entire, the upper ones divided into 2-5 lobes ; cap- 

 sules nearly globular. Weld or Dyer's Rocket. Waste places, 

 in chalky districts. Fl. July, August. 



** Leaves deeply cut. 



R. lutea : stems one foot high, branched ; leaves variable, 

 but always deeply divided, mostly once or twice trifid, but 

 occasionally pinnatifid, with few oblong or linear segments, 

 much waved on the margins ; flowers in long racemes ; sepals 

 nsually six, sometimes only five ; petals as many, of a greenish- 

 yellow, the lowest entire or two-cleft, the others irregularly 

 divided into two, three, or four lobes ; capsule oblong. Waste 

 places, in limestone districts. Fl. June to August. 



(18) Matthiola. STOCK. 

 M. incana : stem 1-2 feet high, erect, usually perennial, 



