Genetical Studies on Oenothera. V. 



195 



Inflorescence. As denser spike, the bracts 

 inclined to fall off, patroclinous. 



Buds. 7—8 cm. long. Sepals frequently 

 with faint reddish spots showing influence 

 of the maternal parent. Sepal tips more 

 attenuate, somewhat matroclinous. 



Inflorescence. A looser spike, bracts per- 

 sistent becoming leaf-like, patroclinous. 



Buds. 6'5— 7 cm. long. Sepals generally 

 green showing the influence of the 

 maternal parent. Sepal tips less attenuate, 

 somewhat matroclinous. 



Fig. 18. Mature plant of hybrid, biennis A grandiflora. A foliage of 



elliptical leaves, narrower than in the reciprocal cross, in form patroclinous 



but with clear evidence uf biennis influence. 



Contrast with Fig. 17. 



Petals. 2'.^ — 3 cm. long. Patroclinous in 



flowering early in the season. 

 Stigma lobes. 2 — .3 mm. below the tips 



of the anthers, patroclinous. 

 Capsules. 2 — 22 cm. long, patroclinous as 



to size. 



Petals. About 2 cm. long. Patroclinous 

 in flowering later in the season. 



Stigma lobes. On a level with or slightly 

 above tips of anthers, patroclinous. 



Capsules. 2'5 — 3 cm. long, patroclinous as 

 to size. 



