400 Origin of Each Species Considered Separately. 



dently a genuine well-characterized type; the herbarium 

 specimens and photographs I have kept of the first that 

 appeared agree perfectly with the mutants which have 

 arisen since. 



The flowers presented no differences from those of 

 O. elliptica. They are the same size, that is, are some- 

 what smaller than those of 0. Lamarckiana, but large 

 when the weakness of the species is taken into considera- 

 tion. The petals are not obcordate but narrower at the 

 extremity, and rounded or sometimes even pointed at the 

 tip. The stamens and stigmas resemble those of the 



parent species. 



^^^ ^^^^ Examples of 0. snblinearis ap- 



i^^^l ji^^^^k peared in my cultures from year to 



\ WKKKU year, but the majority of them 



' '^ / / ^^y^ perished as young rosettes. Only 



^X^^y^ ^our plants grew beyond this stage 



^ ^m and only one of these afforded fer- 



Fig. 87; Oeiiotherasub- ^ile seed, which when sown pro- 

 linearis. retals with a . ^ 



stamen, July, 1896. duced the new form in the pro- 



From the same bien- ^^^4.: ^r m «9/ t ^.i • 4. 



nial plant as Fig. 86. portion of 10 %.^ In this respect 



it falls therefore into the same cat- 

 egory as O. scintillans and 0. elliptica. 



The history and fate of the four mutants which pro- 

 duced stems must now be briefly described. I shall be- 

 gin with the single plant which set seed. 



This plant arose from seed of the Lamarckiana- 

 family which had been sown in 1895, but had remained 

 in the ground for a year. It was recognized in June 

 1896 as a peculiar form and transplanted separately. It 

 was biennial and flowered in 1897 on its numerous lat- 

 eral branches which however bore only a few flowers 

 each. The whole plant was short and stunted, and its 



