6 BOTANICAL GAZETTE [jaxuary 



means 



dealing with the hybrids. 



I shall now describe the origin of O. blandina and the pedigree 

 of the race derived from it. As a matter of fact, this mutant did 

 not arise directly from O. Lamarckiana, but through another 

 mutant race as an intermediate. This was the fertile race of 

 0. lata issued from an original fecundation of my normal 0. lata by 



means 



Grupp 



is race is described in my 

 256, 257. In the fourth 



from 



specimens 



in 1907 ar 

 specimens 



Besides these, the cultures consisted of 



mutants 



lans. The size of 1 



percentage figures. 



The full name < 



small 



(mut. 1888 toXmut. 1895 semilata) mut. 1 

 lg out the fecundation of the lata specimens 



by the pollen of 



derived seuaratelv from one mutant 



from 



pollination. The seeds of the first mutant were sown in 



before 



from 



i and 45 others which wen 

 )th groups were uniform 

 color already mentioned 



like the simultaneous culture of the third 

 lin, and for this reason this first line h£ 



continued 



mutant of 1008 were sown in 10 12 and 







a culture of 67 flowering plants, all of which repeated the type of 

 their parent. Besides these, I sowed part of the seed somewhat 

 later in the season (June), and obtained a large group of rosettes 

 of radical leaves, of which, however, only one survived our long, 

 wet winter. This specimen flowered in 1913 on the main spike 

 and on a number of branches, was very vigorous, but not strikingly 

 stouter than the annuals of that summer. 



