Her if able Pclorias. 



223 



are, however, highly variable and only too frequently 

 accompanied by other malformations. The commonest 

 of these are an increase in the number of organs, the 

 formation of catacorollas and the production of a secon- 

 dary raceme from the axis of the flower. These are the 

 cases which are most 

 commonly described and 

 figured in literature. In 

 order to find more regu- 

 lar and even perfectly 

 pentamerous flowers we 

 must look to the tops of 

 the weak lateral branches 

 of vigorous plants (Fig. 

 42) ; these hardly ever 

 proliferate, are often still 

 pleiomerous, but there 

 will also occur amongst 

 them flowers with a per- 

 fectly regular corolla 

 with five lips and five 

 erect stamens. 



The peloric flowers 

 of Digitalis purpurea are 



always terminal, whether they occur on the main stem 

 or on branches. The same is true of most other Serophu- 



SiTRiNGAR, Plantaardige Monstruositcltcn, K. Akad. v. Wetenscli., 

 Amsterdam, 1873, 2d. R., Vol. VII, Plates I-TI 



P. Magnus, Digitalis purpurea, Sitzungsber. Prov. Brandenb., 

 Vol. XXII, 1880, p. 



J. C. CosTERUs, Teratologische Verschynsclen by Digitalis pur- 

 purea, Ned. Kruidk. Archief, 1885. Plate VII. 



Angel Gallardo, Fasciaeion, Proliferacion y Sinantia. Ann. 

 ]\Tiis. Nacion., Buenos Aires, Vol. VI, p. 37, PI. 3; also Sohre aiguiias 

 aunmaJias de Digitalis purpurea (witli complete bibliograpby), same 

 journal, Vol. VII, pp. 37-72. 



Fig. 42. Digitalis purpurea mou- 

 strosa. A lateral brancb witb a 

 terminal pentamerous pcloria. 



