458 The Systematic Value of the Nezv Species. 



First with the groups of leaves from rosettes in June 

 (Fig. 52, p. 293 and Fig. 53, p. 294) ; and then with the 

 rosettes of O. gigas (Fig. 63, p. 324), O. lata (Fig. 92, 

 p. 412); O. scintillans (Fig. 82, p. 383), O. oblonga 

 (Fig. 74, p. 344) and so forth. 



The radical leaves of the full grown rosettes and the 

 leaves on the stem behave in the same way. Those of 

 O. biennis and 0. Lamarckiana hardlv differ at all in 







Fig. 104. Radical leaves of full grown rosettes. B, of 

 OenotJiera biennis; L, of O. Lamarckiana. The spots on 

 the leaves are brown in life. 



form (Fig. 104 B and L). Those of the former are 

 smooth with few crumples, with red main nerves, and 

 often a number of scattered brown spots; the latter are 

 very much wrinkled, without red pigment or at most 

 with no more than isolated red spots. In form. 0. gigas 

 differs somewhat more (Fig. 62 on page 323) and 0. 

 lata more still (Fig. 58, p. 311, and Fig. 89, p. 405). 



