LKS80N 13.J llUlK.nri.AR ANI> INSYMMKTUICAI, FLOWKRS 



91 



it, at first view, at least in cases wliero tlie jilan is more or less 

 obscured by the leaving out {obliteration) ol" one or more of the 

 members of the same set, or by some in- mi 



equality in their size and shape. The 

 latter circumstance jrives rise to 



244. Irrffiilar Flowers. This name is 



given to blossoms in which the different 

 members of the same sort, as, for exam- 

 ple, the petals or the stamens, are unlike 

 in size or in form. We have familiar 

 183 cases of the 



sort in the 

 Larkspur 

 (Fig. 183, 

 184), and 

 Monkshood 

 (Fig. 185, 

 186); also 

 in the Vio- 

 let (Fig. 181, 182). In the latter it 

 is the corolla principally which is ir- 

 regular, one of the petals being larger 

 than the rest, and extended at the 

 base into a hollow protuberance or 

 spur. In the Larkspur (Fig. 183), 

 both the calyx and the corolla par- 

 N take of the irrcgularitj'. This and 

 the Monkshood are likewise good ex- 

 amples of 



24;"). Unsymmrtrlrnl Flowers. We 



call them unsynimetrical, when the 

 different sets of organs do not agree 

 in the number of their parts. The 

 irregular calyx of Lark>;pur (Fig. 183, 184) consists of five sepals, 

 one of wliicli, larLT'T tiian the rest, is prolonged behind into a large 

 Ppur; but the corolla is made of only four petals (of two shapes); 



Fin. 181. Flower of a Violpt. 182. It* r»\\\ Hnil rnmlla displayed : tlio five 

 partfi am the M-palx ; (ho fivr iiilrn-ciiiiiir Inrgor onff arn llin iM'tals. 



FIfi. 183. Flower of a Larkspur. ISl. lis calyx and cumlla displayi-d ; I ho fn 

 pieces are Uio Bepalii ; Uio Tour ■mailer, the pctaU. 



lar^e 



