Incipient Species. 



421 



Fig. 95 is a photograph, taken in the same way as 

 those already given for other mutations, of a group of 

 young plants which were raised from the seeds of Oeno- 

 thera lata fertilized by 0. Lamarckiana, and were planted 

 out in early spring, in rows, in boxes containing good 



Fig. 95. A mutation in the /ato-family. From a photograph 

 taken on the 25th of May 1900. In the right column 

 there can be seen at the top O. alhida, in the middle O. 

 lata, and at the bottom O. albida again. In the second 

 column O. Lamarckiana, O. oblonga (in the middle) and 

 O. Lamarckiana. In the third row O. lata (below), O. 

 oblonga, and O. subovata (at the top, very small). In 

 the left row three O. lata, and in the middle, the largest 

 rosette, O. Lamarckiana. The O. lata and O. Lamarck- 

 iana are like the two parents, the rest have all arisen as 

 mutations. 



soil. It shows some of the mutations which arose from 

 the main stem of the /a/a-family (as given in detail on 

 page 285), and happens to be a group in which many 

 new forms are growing close together. The figure shows 



